CN106762071A - A kind of automobile engine to exhaust joint and its production technology - Google Patents
A kind of automobile engine to exhaust joint and its production technology Download PDFInfo
- Publication number
- CN106762071A CN106762071A CN201611128742.8A CN201611128742A CN106762071A CN 106762071 A CN106762071 A CN 106762071A CN 201611128742 A CN201611128742 A CN 201611128742A CN 106762071 A CN106762071 A CN 106762071A
- Authority
- CN
- China
- Prior art keywords
- wax
- sand
- automobile engine
- exhaust joint
- slurries
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/007—Ferrous alloys, e.g. steel alloys containing silver
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/24—Silencing apparatus characterised by method of silencing by using sound-absorbing materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having thermal insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
- F01N13/1844—Mechanical joints
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/01—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust by means of electric or electrostatic separators
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
The present invention relates to a kind of automobile engine to exhaust joint, including elbow and except carbon sound absorber, elbow is provided with air inlet and gas outlet, and at least a piece of fin is provided with the outer wall of elbow, except carbon sound absorber is connected with gas outlet, except being provided with seal washer between carbon sound absorber and gas outlet；Except carbon sound absorber includes removing carbon sound absorption portion and threaded joints, threaded joints are set away from gas outlet；Except carbon sound absorption portion inwall is coated with absorbent treatment, sound absorption layer surface is coated with refractory layer, except being additionally provided with except carbon box and corona discharger on the inwall of carbon sound absorber；Automobile engine to exhaust joint of the invention on the inwall except carbon sound absorber due to being additionally provided with except carbon box and corona discharger, the electrostatic in gas is effectively removed by corona discharger, improve except carbon effect, effectively prevent carbon distribution in joint, improve the quality and service life of joint.
Description
Technical field
The present invention relates to a kind of automobile engine to exhaust joint and its production technology, belong to technical field of automobile.
Background technology
Automobile engine in the process of running, by blast pipe discharged, due to automobile by the high-temp waste gas in engine cylinder body
Engine exhaust joint is directly connected with blast pipe, and the temperature of exhaust wall is directly transferred on joint；Through there is shutting mechanism to determine,
, up to more than 450 degree, the exhaust joint that ordinary metallic material is made can only be resistance to for the exhaust pipe wall temperature of the engine with supercharger in modern age
By the high temperature below 400 degree, situations such as easily there is crackle more than 400 degree, existing automobile engine to exhaust joint geometry in addition
Design is not reasonable, and bulk strength is low and uneven, and especially spill position intensity is minimum, situations such as easily there is crack deformation
Occur, influence its service life, and the silencer being attached thereto and exhaust main is broken down.Therefore a kind of founder is developed
Skill is simple, low production cost, bulk strength are high, long service life automobile engine to exhaust joint is very necessary.
The content of the invention
The technical problem to be solved in the present invention is, in view of the shortcomings of the prior art, a kind of good heat dissipation is proposed, long service life
Automobile engine to exhaust joint.
The present invention is that the technical scheme for solving above-mentioned technical problem proposition is：A kind of automobile engine to exhaust joint, including
Elbow and except carbon sound absorber, elbow is provided with air inlet and gas outlet, and at least a piece of fin is provided with the outer wall of elbow,
Except carbon sound absorber is connected with gas outlet, except being provided with seal washer between carbon sound absorber and gas outlet；
Except carbon sound absorber includes removing carbon sound absorption portion and threaded joints, threaded joints are set away from gas outlet；Except carbon sound absorption
Portion's inwall is coated with absorbent treatment, and sound absorption layer surface is coated with refractory layer, except being additionally provided with except carbon box on the inwall of carbon sound absorber
And corona discharger.
The improvement of above-mentioned technical proposal is：Air inlet is provided with adpting flange, adpting flange surrounding be formed with first connecting portion,
Second connecting portion, the 3rd connecting portion and the 4th connecting portion.
The improvement of above-mentioned technical proposal is：Elbow is formed with least one first circular positioning boss at gas outlet, the
The crown center of one circular positioning boss is formed with the first locating slot.
The improvement of above-mentioned technical proposal is：Elbow is formed with least one second circular positioning boss at air inlet, the
The crown center of two circular positioning boss is formed with the second locating slot.
The improvement of above-mentioned technical proposal is：Fin includes metallic plate and coating, and coating is set and metal sheet outer surface.
The production technology of automobile engine to exhaust joint, comprises the following steps：
(i) melting raw material, specially：
A, dispensing
The mass percent of each composition is in automobile engine to exhaust joint：
C：0.02-0.03%, Al:0.56-0.83%,Zn:0.63-0.94%,Si：0.11-0.18%, Mn：0.77-0.88%, S：≤
0.030%, P：≤ 0.030%, Cr：0.02-0.04%, Ni：0.44-0.49%, Cu：0.15-0.19%, V：0.05-0.08%, Mo：
0.16-0.19%, Ti：0.77-0.89%, B：0.01-0.02%, Pd：0.02-0.04%,Pt：0.26-0.39%,W：0.33-
0.46%,Ta：0.01-0.02%,Nd：0.03-0.07%,Ce：0.01-0.02%, Eu：0.11-0.14%,Lu:0.04-0.09%,
Au：0.15-0.21%, Ag:0.42-0.54%, Ga：0.01-0.02%, Y：0.12-0.17%, Sn：0.54-0.67%, Zr：0.06-
0.11%, Re：0.02-0.05%,
Calcium oxide：0.12-0.15%, magnesia：0.13-0.15%, cupric oxide：0.11-0.18%, iron oxide：0.15-
0.21%, manganese dioxide：0.06-0.14%, Kocide SD：0.14-0.18%, calcium hydroxide：0.06-0.08%, it is balance of
Fe；
B, added raw materials into smelting furnace by the mass percent of each composition in predetermined automobile engine to exhaust joint, by smelting furnace
Temperature bring up to 1550 degrees Celsius to 1580 degrees Celsius, raw material is smelted to form alloy solution；
C, alloy solution obtained in the previous step is cooled down, water-cooled is combined with air cooling during cooling, first uses water-cooled with 30-32
DEG C/cooldown rate of s by alloy solution water-cooled to 410-420 DEG C of formation alloy, be then air cooled to 310-320 DEG C, then using water
The cold cooldown rate with 13-15 DEG C/s is by alloy water-cooled to room temperature；
D, heating, the alloy after previous step is cooled down are added in smelting furnace and carry out secondary smelting, and the temperature in smelting furnace is brought up to
1590 degrees Celsius to 1620 degrees Celsius, alloy forms alloy solution by secondary smelting；
E, it is sprinkled into swelling perlite powder on alloy solution surface, twice of slag hitting after the completion of slag hitting, forms alloy to be cast molten
Liquid, was poured in five minutes；
(ii) prepared by wax-pattern：Make consistent with automobile engine to exhaust joint cast member and include the wax-pattern of insulated feeder, and it is right
Wax-pattern is repaired, and wax-pattern is cleaned using wax base cleaning agent afterwards；
(iii) shell model sand mold is made in step (ii) obtained wax-pattern：The step is comprised the steps of：
A, wax-pattern place insulated feeder position on, with iron plate cover place insulated feeder surface, in case the surface is subject to
Pollution；
B, it is coated with the first surface layer in wax pattern surface：
First, slurries are prepared in wax pattern surface dip-coating zirconium powder and silica sol binder, the viscosity number of the slurries was at 42-53 seconds；
Then, the zircon sand with 550-650 mesh is manually being floated sand by the wax pattern surface of dip-coating slurries, and iron should be cleared up after floating sand
Residual slurry and zircon sand on piece；
3rd, the wax-pattern after artificial floating sand is spontaneously dried, drying time is 18-20 hours；
C, it is coated with the second transition zone in wax pattern surface obtained in step B：
First, the slurries prepared with Malaysia powder and silica sol binder in wax pattern surface dip-coating obtained in step B, the slurries it is viscous
Angle value was at 41-45 seconds；
Then, the Malaysia sand with 500-800 mesh is manually being floated sand by the wax pattern surface of dip-coating slurries, should be cleared up after floating sand
Residual slurry and Malaysia sand on iron plate；
3rd, the wax-pattern after artificial floating sand is put under the wind speed of 1.8-2.2 meter per seconds and is dried, drying time is that 16-36 is small
When；
D, it is coated with the 3rd back-up coat in wax pattern surface obtained in step C：
First, the slurries prepared with Malaysia powder and silica sol binder in wax pattern surface dip-coating obtained in step C, the slurries it is viscous
Angle value was at 22-25 seconds；
Then, the Malaysia sand with 150-200 mesh is manually being floated sand by the wax pattern surface of dip-coating slurries, should be cleared up after floating sand
Residual slurry and Malaysia sand on iron plate；
3rd, wax-pattern is put in vacuum drying chamber and is dried, the temperature in vacuum drying chamber is controlled for 58-63 degrees Celsius,
The air pressure in vacuum drying chamber is controlled for 165-195Pa, drying time is 15-18 hours；
E, wax pattern surface obtained in step D be coated with the 4th slurry seal layer：
First, the slurries prepared with Malaysia powder and silica sol binder in wax pattern surface dip-coating obtained in step D, the slurries it is viscous
Angle value was at 8-12 seconds；
Then, the residual slurry on cleaning iron plate；
3rd, wax-pattern is put in vacuum drying chamber and is dried, and controls the temperature in vacuum drying chamber for 48-58 degrees Celsius, control
Air pressure in vacuum drying chamber processed is 110-130Pa, and drying time is 11-13 hours；
(iv) dewax and be calcined：Using steam dewaxing, the pressure of steam is 0.6MPa, and the time is 38-45 minutes, and preceding the answering first that dewax
The iron plate at insulated feeder position is removed, shell mould is obtained, and shell mould is calcined；
(v) the (iv) roasting shell mould of step is put into the sandbox prepared by formative technology, blend compounds band is sealed to be used on the shell mould
The cast gate and insulated feeder of cast, are then placed in the mixed sand by preparing, and are carried out with foundry jolter again after piling mixed sand
Ram-jolt, forms sand mold；
(vi) the sand mold after step (v) ram-jolt and sandbox plane are struck off, and a core are pricked at interval of 15cm in mould surface,
The core is pricked to from model surface 3-5cm；
(vii) pour into a mould
Baking 1 hour is carried out to shell mould with the air-heater of 400-420 degrees Celsius of constant temperature before cast, during cast, pouring temperature is
1550-1650 degrees Celsius, after cast, casting is incubated 2-3 hours in sand mold；After moulding by casting, the demoulding is carried out, crushes shell mould,
The insulated feeder of casting is cut off, casting is obtained；
(viii) casting is coated into abrasion-resistant metal coating, the component of abrasion-resistant metal coating is by mass percentage：Carbon：0.12-0.15%,
Boron：0.13-0.16%, chromium：5.2-5.4%, titanium：2.1-2.6%, vanadium：1.3-1.8%, cobalt：0.33-0.65%, niobium：0.13-
0.25%, calcium：0.52-0.67%, barium：0.11-0.17%, tungsten：0.64-0.77%, zinc：2.3-2.6%, samarium：1.1-1.4%, neodymium：
3.2-3.7%, promethium：0.12-0.15%, europium：0.29-0.34%, gadolinium：1.2-1.5%, aluminium：3.21-4.28%, auxiliary agent：5.1-5.4%,
Balance of iron；
The component of auxiliary agent is calculated by weight as：Zircon：8-11 parts, kaolinite：16-18 parts；
(ix) fin is installed in casting outer wall, elbow is obtained；The coating of fin is obtained after being solidified by Graphene, wherein Graphene
Solution in the mass percent of each composition be：Graphene：5.2-5.4%, dispersant：1.2-1.4%, surfactant：2.4-
3.4%, defoamer：3.2-4.1%, adhesive：15.2-16.4%, balance of isopropanol；
Adhesive is epoxy acrylic resin, polyurethane acrylic resin, Kynoar, butadiene-styrene rubber, polyacrylonitrile and gathers
At least one of carbamate；
Dispersant is polyvinyl chloride, polyethylene glycol oxide, polyethylene glycol, Tissuemat E, polyvinyl chloride and polyvinylpyrrolidone
It is at least one；
Surfactant is Sodium Polyacrylate, neopelex, sodium alginate, sodium carboxymethylcellulose, odium stearate
And at least one of sodium cetanesulfonate；
Defoamer is at least one of benzyl carbinol oleate, dimethicone, GP defoamers and dimethyl silicone polymer；
(x) elbow is obtained final automobile engine to exhaust joint with except the sealing of carbon sound absorber is affixed.
The improvement of above-mentioned technical proposal is：The mass percent of each composition is in automobile engine to exhaust joint：
C：0.03%, Al:0.56%,Zn:0.63%,Si：0.11%, Mn：0.77%, S：≤ 0.030%, P：≤ 0.030%, Cr：
0.02%, Ni：0.44%, Cu：0.15%, V：0.05%, Mo：0.16%, Ti：0.77%, B：0.01%, Pd：0.02%,Pt：0.26%,
W：0.33%,Ta：0.01%,Nd：0.03%,Ce：0.01%, Eu：0.11%,Lu:0.04%, Au：0.15%, Ag:0.42%, Ga：
0.01%, Y：0.12%, Sn：0.54%, Zr：0.06%, Re：0.02%,
Calcium oxide：0.12%, magnesia：0.13%, cupric oxide：0.11%, iron oxide：0.15%, manganese dioxide：0.06%,
Kocide SD：0.14%, calcium hydroxide：0.06%, balance of Fe.
The improvement of above-mentioned technical proposal is：The mass percent of each composition is in automobile engine to exhaust joint：
C：0.02%, Al:0.83%,Zn:0.94%,Si：0.18%, Mn：0.88%, S：≤ 0.030%, P：≤ 0.030%, Cr：
0.04%, Ni：0.49%, Cu：0.19%, V：0.08%, Mo：0.19%, Ti：0.89%, B：0.02%, Pd：0.04%,Pt：0.39%,
W：0.46%,Ta：0.02%,Nd：0.07%,Ce：0.02%, Eu：0.14%,Lu:0.09%, Au：0.21%, Ag:0.54%, Ga：
0.02%, Y：0.17%, Sn：0.67%, Zr：0.11%, Re：0.05%,
Calcium oxide：0.15%, magnesia：0.15%, cupric oxide：0.18%, iron oxide：0.21%, manganese dioxide：0.14%,
Kocide SD：0.18%, calcium hydroxide：0.08%, balance of Fe.
The present invention is using the beneficial effect of above-mentioned technical proposal：
（1）Automobile engine to exhaust joint of the invention has it due to being provided with least a piece of fin on the outer wall of elbow
There is excellent heat dispersion, prevent joint from overheating, situations such as there is crackle；
（2）Automobile engine to exhaust joint of the invention due to being coated with absorbent treatment except carbon sound absorption portion inwall, cover by sound absorption layer surface
Refractory layer is stamped, while noise reduction is absorbed sound, the refractory layer protection good for absorbent treatment is provided prevents absorbent treatment by High Temperature Gas
Body corrosion and damage, extends the service life of joint；
（3）Automobile engine to exhaust joint of the invention on the inwall except carbon sound absorber due to being additionally provided with except carbon box and corona
Discharger, the electrostatic in gas is effectively removed by corona discharger, is improve except carbon effect, effectively prevents carbon distribution in joint,
Improve the quality and service life of joint；
（4）Automobile engine to exhaust joint of the invention is provided with adpting flange due to air inlet, and adpting flange surrounding is formed with
One connecting portion, the second first connecting portion, the 3rd connecting portion and the 4th connecting portion so that adpting flange is irregular rectangle, convenient
The mounting hole alignd on four connecting portions during installation, improves installation effectiveness；
（5）Automobile engine to exhaust joint of the invention is formed with least one first circular positioning due to elbow at gas outlet
Boss, the crown center of the first circular positioning boss is formed with the first locating slot, and elbow is formed with least one the at air inlet
Two circular positioning boss, the crown center of the second circular positioning boss is formed with the second locating slot, can be conveniently joint during installation
Effectively positioned, vibrations are produced when preventing work situations such as cause joint looseness；
（6）Automobile engine to exhaust joint of the invention strengthens the heat-resisting and resistance to of joint due to containing Zn, Ni and W in raw material
Corrosive nature；
（7）Automobile engine to exhaust joint of the invention alleviates the matter of joint due to containing Ti, Al and rare earth element in raw material
Amount, increased structural strength and decay resistance；
（8）Automobile engine to exhaust joint of the invention has carried out melting twice due to raw material melting, improves final casting
Quality；
（9）Automobile engine to exhaust joint of the invention covers abrasion-resistant metal coating due to casting, further increases joint
Heat-resisting and decay resistance, and with it is wear-resisting the characteristics of；
（10）Automobile engine to exhaust joint of the invention due to covering graphite ene coatings in fin surface, using Graphene
High thermal conductivity, heat can carry out face transmission rapidly, and be delivered to inside fin rapidly along graphene film, shorten
Heat-conducting interface material or heater members improve the radiating rate of fin, so as to drop to the time needed for fin heat transfer
The low temperature of joint.
Brief description of the drawings
The invention will be further described below in conjunction with the accompanying drawings：
Fig. 1 is the main structure diagram of embodiment of the present invention automobile engine to exhaust joint；
Fig. 2 is the left view structural representation of embodiment of the present invention automobile engine to exhaust joint；
Fig. 3 is the right side structural representation of embodiment of the present invention automobile engine to exhaust joint；
Fig. 4 is embodiment of the present invention automobile engine to exhaust joint except the structural representation of carbon sound absorber；
Fig. 5 is the structural representation of the fin of embodiment of the present invention automobile engine to exhaust joint；
Wherein：1- air inlets；2- adpting flanges；2a- first connecting portions；2b- second connecting portions；The connecting portions of 2c- the 3rd；2d-
Four connecting portions；3- elbows；The circular positioning boss of 4- second；The locating slots of 4a- second；5- fin；5a- coatings；5b- metallic plates；
The circular positioning boss of 6- first；The locating slots of 6a- first；7- gas outlets；8- removes carbon sound absorber；8a- removes carbon sound absorption portion；8b- spiral shells
Line connecting portion；9- seal washers；10- removes carbon box；11- corona dischargers；12- refractory layers；13- absorbent treatments.
Specific embodiment
Embodiment one
The automobile engine to exhaust joint of the present embodiment, as Figure 1-5, including elbow 3 and except carbon sound absorber 8, elbow 3 sets
Air inlet 1 and gas outlet 7 are equipped with, a piece of fin 5 is provided with the outer wall of elbow 3, except carbon sound absorber 8 connects with gas outlet 7
It is logical, except being provided with seal washer 9 between carbon sound absorber 8 and gas outlet 7；Air inlet 1 is provided with adpting flange 2, adpting flange 2
Surrounding is formed with first connecting portion 2a, second connecting portion 2b, the 3rd connecting portion 2c and the 4th connecting portion 2d.Elbow 3 is near gas outlet 7
Place is formed with two first circular positioning boss 6, and the crown center of the first circular positioning boss 6 is formed with the first locating slot 6a.Elbow 3
One second circular positioning boss 4 is formed with air inlet 1, the crown center of the second circular positioning boss 4 is formed with second to be determined
Position groove 4a.Fin 5 includes that metallic plate 5b and coating 5a, coating 5a are set and metallic plate 5b outer surfaces.
Except carbon sound absorber 8 includes that, except carbon sound absorption portion 8a and threaded joints 8b, threaded joints 8b sets away from gas outlet 7
Put；Except carbon sound absorption portion 8a inwalls are coated with absorbent treatment 13, the surface of absorbent treatment 13 is coated with refractory layer 12, except carbon sound absorber 8
It is additionally provided with inwall except carbon box 10 and corona discharger 11.
The production technology of automobile engine to exhaust joint, comprises the following steps：
(i) melting raw material, specially：
A, dispensing
The mass percent of each composition is in automobile engine to exhaust joint：
C：0.03%, Al:0.56%,Zn:0.63%,Si：0.11%, Mn：0.77%, S：≤ 0.030%, P：≤ 0.030%, Cr：
0.02%, Ni：0.44%, Cu：0.15%, V：0.05%, Mo：0.16%, Ti：0.77%, B：0.01%, Pd：0.02%,Pt：0.26%,
W：0.33%,Ta：0.01%,Nd：0.03%,Ce：0.01%, Eu：0.11%,Lu:0.04%, Au：0.15%, Ag:0.42%, Ga：
0.01%, Y：0.12%, Sn：0.54%, Zr：0.06%, Re：0.02%,
Calcium oxide：0.12%, magnesia：0.13%, cupric oxide：0.11%, iron oxide：0.15%, manganese dioxide：0.06%,
Kocide SD：0.14%, calcium hydroxide：0.06%, balance of Fe；
B, added raw materials into smelting furnace by the mass percent of each composition in predetermined automobile engine to exhaust joint, by smelting furnace
Temperature bring up to 1550 degrees Celsius to 1580 degrees Celsius, raw material is smelted to form alloy solution；
C, alloy solution obtained in the previous step is cooled down, water-cooled is combined with air cooling during cooling, first uses water-cooled with 30-32
DEG C/cooldown rate of s by alloy solution water-cooled to 410-420 DEG C of formation alloy, be then air cooled to 310-320 DEG C, then using water
The cold cooldown rate with 13-15 DEG C/s is by alloy water-cooled to room temperature；
D, heating, the alloy after previous step is cooled down are added in smelting furnace and carry out secondary smelting, and the temperature in smelting furnace is brought up to
1590 degrees Celsius to 1620 degrees Celsius, alloy forms alloy solution by secondary smelting；
E, it is sprinkled into swelling perlite powder on alloy solution surface, twice of slag hitting after the completion of slag hitting, forms alloy to be cast molten
Liquid, was poured in five minutes；
(ii) prepared by wax-pattern：Make consistent with automobile engine to exhaust joint cast member and include the wax-pattern of insulated feeder, and it is right
Wax-pattern is repaired, and wax-pattern is cleaned using wax base cleaning agent afterwards；
(iii) shell model sand mold is made in step (ii) obtained wax-pattern：The step is comprised the steps of：
A, wax-pattern place insulated feeder position on, with iron plate cover place insulated feeder surface, in case the surface is subject to
Pollution；
B, it is coated with the first surface layer in wax pattern surface：
First, slurries are prepared in wax pattern surface dip-coating zirconium powder and silica sol binder, the viscosity number of the slurries was at 42-53 seconds；
Then, the zircon sand with 550-650 mesh is manually being floated sand by the wax pattern surface of dip-coating slurries, and iron should be cleared up after floating sand
Residual slurry and zircon sand on piece；
3rd, the wax-pattern after artificial floating sand is spontaneously dried, drying time is 18-20 hours；
C, it is coated with the second transition zone in wax pattern surface obtained in step B：
First, the slurries prepared with Malaysia powder and silica sol binder in wax pattern surface dip-coating obtained in step B, the slurries it is viscous
Angle value was at 41-45 seconds；
Then, the Malaysia sand with 500-800 mesh is manually being floated sand by the wax pattern surface of dip-coating slurries, should be cleared up after floating sand
Residual slurry and Malaysia sand on iron plate；
3rd, the wax-pattern after artificial floating sand is put under the wind speed of 1.8-2.2 meter per seconds and is dried, drying time is that 16-36 is small
When；
D, it is coated with the 3rd back-up coat in wax pattern surface obtained in step C：
First, the slurries prepared with Malaysia powder and silica sol binder in wax pattern surface dip-coating obtained in step C, the slurries it is viscous
Angle value was at 22-25 seconds；
Then, the Malaysia sand with 150-200 mesh is manually being floated sand by the wax pattern surface of dip-coating slurries, should be cleared up after floating sand
Residual slurry and Malaysia sand on iron plate；
3rd, wax-pattern is put in vacuum drying chamber and is dried, the temperature in vacuum drying chamber is controlled for 58-63 degrees Celsius,
The air pressure in vacuum drying chamber is controlled for 165-195Pa, drying time is 15-18 hours；
E, wax pattern surface obtained in step D be coated with the 4th slurry seal layer：
First, the slurries prepared with Malaysia powder and silica sol binder in wax pattern surface dip-coating obtained in step D, the slurries it is viscous
Angle value was at 8-12 seconds；
Then, the residual slurry on cleaning iron plate；
3rd, wax-pattern is put in vacuum drying chamber and is dried, and controls the temperature in vacuum drying chamber for 48-58 degrees Celsius, control
Air pressure in vacuum drying chamber processed is 110-130Pa, and drying time is 11-13 hours；
(iv) dewax and be calcined：Using steam dewaxing, the pressure of steam is 0.6MPa, and the time is 38-45 minutes, and preceding the answering first that dewax
The iron plate at insulated feeder position is removed, shell mould is obtained, and shell mould is calcined；
(v) the (iv) roasting shell mould of step is put into the sandbox prepared by formative technology, blend compounds band is sealed to be used on the shell mould
The cast gate and insulated feeder of cast, are then placed in the mixed sand by preparing, and are carried out with foundry jolter again after piling mixed sand
Ram-jolt, forms sand mold；
(vi) the sand mold after step (v) ram-jolt and sandbox plane are struck off, and a core are pricked at interval of 15cm in mould surface,
The core is pricked to from model surface 3-5cm；
(vii) pour into a mould
Baking 1 hour is carried out to shell mould with the air-heater of 400-420 degrees Celsius of constant temperature before cast, during cast, pouring temperature is
1550-1650 degrees Celsius, after cast, casting is incubated 2-3 hours in sand mold；After moulding by casting, the demoulding is carried out, crushes shell mould,
The insulated feeder of casting is cut off, casting is obtained；
(viii) casting is coated into abrasion-resistant metal coating, the component of abrasion-resistant metal coating is by mass percentage：Carbon：0.12-0.15%,
Boron：0.13-0.16%, chromium：5.2-5.4%, titanium：2.1-2.6%, vanadium：1.3-1.8%, cobalt：0.33-0.65%, niobium：0.13-
0.25%, calcium：0.52-0.67%, barium：0.11-0.17%, tungsten：0.64-0.77%, zinc：2.3-2.6%, samarium：1.1-1.4%, neodymium：
3.2-3.7%, promethium：0.12-0.15%, europium：0.29-0.34%, gadolinium：1.2-1.5%, aluminium：3.21-4.28%, auxiliary agent：5.1-5.4%,
Balance of iron；
The component of auxiliary agent is calculated by weight as：Zircon：8-11 parts, kaolinite：16-18 parts, graphite powder：12-14 parts, copper
Powder：11-13 parts, nickel powder：12-16 parts, aluminium powder：10-14 parts；
(ix) fin is installed in casting outer wall, elbow is obtained；The coating of fin is obtained after being solidified by Graphene, wherein Graphene
Solution in the mass percent of each composition be：Graphene：5.2-5.4%, dispersant：1.2-1.4%, surfactant：2.4-
3.4%, defoamer：3.2-4.1%, adhesive：15.2-16.4%, balance of isopropanol；
Adhesive is epoxy acrylic resin, polyurethane acrylic resin, Kynoar, butadiene-styrene rubber, polyacrylonitrile and gathers
At least one of carbamate；
Dispersant is polyvinyl chloride, polyethylene glycol oxide, polyethylene glycol, Tissuemat E, polyvinyl chloride and polyvinylpyrrolidone
It is at least one；
Surfactant is Sodium Polyacrylate, neopelex, sodium alginate, sodium carboxymethylcellulose, odium stearate
And at least one of sodium cetanesulfonate；
Defoamer is at least one of benzyl carbinol oleate, dimethicone, GP defoamers and dimethyl silicone polymer；
(x) elbow is obtained final automobile engine to exhaust joint with except the sealing of carbon sound absorber is affixed.
Embodiment two
The automobile engine to exhaust joint of the present embodiment, as Figure 1-5, including elbow 3 and except carbon sound absorber 8, elbow 3 sets
Air inlet 1 and gas outlet 7 are equipped with, a piece of fin 5 is provided with the outer wall of elbow 3, except carbon sound absorber 8 connects with gas outlet 7
It is logical, except being provided with seal washer 9 between carbon sound absorber 8 and gas outlet 7；Air inlet 1 is provided with adpting flange 2, adpting flange 2
Surrounding is formed with first connecting portion 2a, second connecting portion 2b, the 3rd connecting portion 2c and the 4th connecting portion 2d.Elbow 3 is near gas outlet 7
Place is formed with two first circular positioning boss 6, and the crown center of the first circular positioning boss 6 is formed with the first locating slot 6a.Elbow 3
One second circular positioning boss 4 is formed with air inlet 1, the crown center of the second circular positioning boss 4 is formed with second to be determined
Position groove 4a.Fin 5 includes that metallic plate 5b and coating 5a, coating 5a are set and metallic plate 5b outer surfaces.
Except carbon sound absorber 8 includes that, except carbon sound absorption portion 8a and threaded joints 8b, threaded joints 8b sets away from gas outlet 7
Put；Except carbon sound absorption portion 8a inwalls are coated with absorbent treatment 13, the surface of absorbent treatment 13 is coated with refractory layer 12, except carbon sound absorber 8
It is additionally provided with inwall except carbon box 10 and corona discharger 11.
The production technology of automobile engine to exhaust joint, comprises the following steps：
(i) melting raw material, specially：
A, dispensing
The mass percent of each composition is in automobile engine to exhaust joint：
C：0.02%, Al:0.83%,Zn:0.94%,Si：0.18%, Mn：0.88%, S：≤ 0.030%, P：≤ 0.030%, Cr：
0.04%, Ni：0.49%, Cu：0.19%, V：0.08%, Mo：0.19%, Ti：0.89%, B：0.02%, Pd：0.04%,Pt：0.39%,
W：0.46%,Ta：0.02%,Nd：0.07%,Ce：0.02%, Eu：0.14%,Lu:0.09%, Au：0.21%, Ag:0.54%, Ga：
0.02%, Y：0.17%, Sn：0.67%, Zr：0.11%, Re：0.05%,
Calcium oxide：0.15%, magnesia：0.15%, cupric oxide：0.18%, iron oxide：0.21%, manganese dioxide：0.14%,
Kocide SD：0.18%, calcium hydroxide：0.08%, balance of Fe；
B, added raw materials into smelting furnace by the mass percent of each composition in predetermined automobile engine to exhaust joint, by smelting furnace
Temperature bring up to 1550 degrees Celsius to 1580 degrees Celsius, raw material is smelted to form alloy solution；
C, alloy solution obtained in the previous step is cooled down, water-cooled is combined with air cooling during cooling, first uses water-cooled with 30-32
DEG C/cooldown rate of s by alloy solution water-cooled to 410-420 DEG C of formation alloy, be then air cooled to 310-320 DEG C, then using water
The cold cooldown rate with 13-15 DEG C/s is by alloy water-cooled to room temperature；
D, heating, the alloy after previous step is cooled down are added in smelting furnace and carry out secondary smelting, and the temperature in smelting furnace is brought up to
1590 degrees Celsius to 1620 degrees Celsius, alloy forms alloy solution by secondary smelting；
E, it is sprinkled into swelling perlite powder on alloy solution surface, twice of slag hitting after the completion of slag hitting, forms alloy to be cast molten
Liquid, was poured in five minutes；
(ii) prepared by wax-pattern：Make consistent with automobile engine to exhaust joint cast member and include the wax-pattern of insulated feeder, and it is right
Wax-pattern is repaired, and wax-pattern is cleaned using wax base cleaning agent afterwards；
(iii) shell model sand mold is made in step (ii) obtained wax-pattern：The step is comprised the steps of：
A, wax-pattern place insulated feeder position on, with iron plate cover place insulated feeder surface, in case the surface is subject to
Pollution；
B, it is coated with the first surface layer in wax pattern surface：
First, slurries are prepared in wax pattern surface dip-coating zirconium powder and silica sol binder, the viscosity number of the slurries was at 42-53 seconds；
Then, the zircon sand with 550-650 mesh is manually being floated sand by the wax pattern surface of dip-coating slurries, and iron should be cleared up after floating sand
Residual slurry and zircon sand on piece；
3rd, the wax-pattern after artificial floating sand is spontaneously dried, drying time is 18-20 hours；
C, it is coated with the second transition zone in wax pattern surface obtained in step B：
First, the slurries prepared with Malaysia powder and silica sol binder in wax pattern surface dip-coating obtained in step B, the slurries it is viscous
Angle value was at 41-45 seconds；
Then, the Malaysia sand with 500-800 mesh is manually being floated sand by the wax pattern surface of dip-coating slurries, should be cleared up after floating sand
Residual slurry and Malaysia sand on iron plate；
3rd, the wax-pattern after artificial floating sand is put under the wind speed of 1.8-2.2 meter per seconds and is dried, drying time is that 16-36 is small
When；
D, it is coated with the 3rd back-up coat in wax pattern surface obtained in step C：
First, the slurries prepared with Malaysia powder and silica sol binder in wax pattern surface dip-coating obtained in step C, the slurries it is viscous
Angle value was at 22-25 seconds；
Then, the Malaysia sand with 150-200 mesh is manually being floated sand by the wax pattern surface of dip-coating slurries, should be cleared up after floating sand
Residual slurry and Malaysia sand on iron plate；
3rd, wax-pattern is put in vacuum drying chamber and is dried, the temperature in vacuum drying chamber is controlled for 58-63 degrees Celsius,
The air pressure in vacuum drying chamber is controlled for 165-195Pa, drying time is 15-18 hours；
E, wax pattern surface obtained in step D be coated with the 4th slurry seal layer：
First, the slurries prepared with Malaysia powder and silica sol binder in wax pattern surface dip-coating obtained in step D, the slurries it is viscous
Angle value was at 8-12 seconds；
Then, the residual slurry on cleaning iron plate；
3rd, wax-pattern is put in vacuum drying chamber and is dried, and controls the temperature in vacuum drying chamber for 48-58 degrees Celsius, control
Air pressure in vacuum drying chamber processed is 110-130Pa, and drying time is 11-13 hours；
(iv) dewax and be calcined：Using steam dewaxing, the pressure of steam is 0.6MPa, and the time is 38-45 minutes, and preceding the answering first that dewax
The iron plate at insulated feeder position is removed, shell mould is obtained, and shell mould is calcined；
(v) the (iv) roasting shell mould of step is put into the sandbox prepared by formative technology, blend compounds band is sealed to be used on the shell mould
The cast gate and insulated feeder of cast, are then placed in the mixed sand by preparing, and are carried out with foundry jolter again after piling mixed sand
Ram-jolt, forms sand mold；
(vi) the sand mold after step (v) ram-jolt and sandbox plane are struck off, and a core are pricked at interval of 15cm in mould surface,
The core is pricked to from model surface 3-5cm；
(vii) pour into a mould
Baking 1 hour is carried out to shell mould with the air-heater of 400-420 degrees Celsius of constant temperature before cast, during cast, pouring temperature is
1550-1650 degrees Celsius, after cast, casting is incubated 2-3 hours in sand mold；After moulding by casting, the demoulding is carried out, crushes shell mould,
The insulated feeder of casting is cut off, casting is obtained；
(viii) casting is coated into abrasion-resistant metal coating, the component of abrasion-resistant metal coating is by mass percentage：Carbon：0.12-0.15%,
Boron：0.13-0.16%, chromium：5.2-5.4%, titanium：2.1-2.6%, vanadium：1.3-1.8%, cobalt：0.33-0.65%, niobium：0.13-
0.25%, calcium：0.52-0.67%, barium：0.11-0.17%, tungsten：0.64-0.77%, zinc：2.3-2.6%, samarium：1.1-1.4%, neodymium：
3.2-3.7%, promethium：0.12-0.15%, europium：0.29-0.34%, gadolinium：1.2-1.5%, aluminium：3.21-4.28%, auxiliary agent：5.1-5.4%,
Balance of iron；
The component of auxiliary agent is calculated by weight as：Zircon：8-11 parts, kaolinite：16-18 parts；
(ix) fin is installed in casting outer wall, elbow is obtained；The coating of fin is obtained after being solidified by Graphene, wherein Graphene
Solution in the mass percent of each composition be：Graphene：5.2-5.4%, dispersant：1.2-1.4%, surfactant：2.4-
3.4%, defoamer：3.2-4.1%, adhesive：15.2-16.4%, balance of isopropanol；
Adhesive is epoxy acrylic resin, polyurethane acrylic resin, Kynoar, butadiene-styrene rubber, polyacrylonitrile and gathers
At least one of carbamate；
Dispersant is polyvinyl chloride, polyethylene glycol oxide, polyethylene glycol, Tissuemat E, polyvinyl chloride and polyvinylpyrrolidone
It is at least one；
Surfactant is Sodium Polyacrylate, neopelex, sodium alginate, sodium carboxymethylcellulose, odium stearate
And at least one of sodium cetanesulfonate；
Defoamer is at least one of benzyl carbinol oleate, dimethicone, GP defoamers and dimethyl silicone polymer；
(x) elbow is obtained final automobile engine to exhaust joint with except the sealing of carbon sound absorber is affixed.
The present invention is not limited to above-described embodiment.The technical scheme that all use equivalents are formed, all falling within the present invention will
The protection domain asked.
Claims (8)
1. a kind of automobile engine to exhaust joint, it is characterised in that：Including elbow and except carbon sound absorber, the elbow is provided with
Air inlet and gas outlet, are provided with least a piece of fin on the outer wall of the elbow, it is described except carbon sound absorber with it is described go out
Gas port is connected, described except being provided with seal washer between carbon sound absorber and gas outlet；
It is described to be set away from the gas outlet including removing carbon sound absorption portion and threaded joints, the threaded joints except carbon sound absorber
Put；It is described except carbon sound absorption portion inwall is coated with absorbent treatment, the sound absorption layer surface is coated with refractory layer, described except carbon sound absorber
Inwall on be additionally provided with except carbon box and corona discharger.
2. automobile engine to exhaust joint according to claim 1, it is characterised in that：The air inlet is provided with connection method
Orchid, the adpting flange surrounding is formed with first connecting portion, the second first connecting portion, the 3rd connecting portion and the 4th connecting portion.
3. automobile engine to exhaust joint according to claim 2, it is characterised in that：The elbow is near system at gas outlet
The crown center for having at least one first circular positioning boss, the described first circular positioning boss is formed with the first locating slot.
4. automobile engine to exhaust joint according to claim 3, it is characterised in that：The elbow is near system at air inlet
The crown center for having at least one second circular positioning boss, the described second circular positioning boss is formed with the second locating slot.
5. automobile engine to exhaust joint according to claim 4, it is characterised in that：The fin include metallic plate and
Coating, the coating is set and metal sheet outer surface.
6. the production technology of the automobile engine to exhaust joint described in any claim according to claim 1-5, its feature
It is：Comprise the following steps：
(i) melting raw material, specially：
A, dispensing
The mass percent of each composition is in the automobile engine to exhaust joint：
C：0.02-0.03%, Al:0.56-0.83%,Zn:0.63-0.94%,Si：0.11-0.18%, Mn：0.77-0.88%, S：≤
0.030%, P：≤ 0.030%, Cr：0.02-0.04%, Ni：0.44-0.49%, Cu：0.15-0.19%, V：0.05-0.08%, Mo：
0.16-0.19%, Ti：0.77-0.89%, B：0.01-0.02%, Pd：0.02-0.04%,Pt：0.26-0.39%,W：0.33-
0.46%,Ta：0.01-0.02%,Nd：0.03-0.07%,Ce：0.01-0.02%, Eu：0.11-0.14%,Lu:0.04-0.09%,
Au：0.15-0.21%, Ag:0.42-0.54%, Ga：0.01-0.02%, Y：0.12-0.17%, Sn：0.54-0.67%, Zr：0.06-
0.11%, Re：0.02-0.05%,
Calcium oxide：0.12-0.15%, magnesia：0.13-0.15%, cupric oxide：0.11-0.18%, iron oxide：0.15-
0.21%, manganese dioxide：0.06-0.14%, Kocide SD：0.14-0.18%, calcium hydroxide：0.06-0.08%, it is balance of
Fe；
B, added raw materials into smelting furnace by the mass percent of each composition in predetermined automobile engine to exhaust joint, by smelting furnace
Temperature bring up to 1550 degrees Celsius to 1580 degrees Celsius, raw material is smelted to form alloy solution；
C, alloy solution obtained in the previous step is cooled down, water-cooled is combined with air cooling during cooling, first uses water-cooled with 30-32
DEG C/cooldown rate of s by alloy solution water-cooled to 410-420 DEG C of formation alloy, be then air cooled to 310-320 DEG C, then using water
The cold cooldown rate with 13-15 DEG C/s is by alloy water-cooled to room temperature；
D, heating, the alloy after previous step is cooled down are added in smelting furnace and carry out secondary smelting, and the temperature in smelting furnace is brought up to
1590 degrees Celsius to 1620 degrees Celsius, alloy forms alloy solution by secondary smelting；
E, it is sprinkled into swelling perlite powder on alloy solution surface, twice of slag hitting after the completion of slag hitting, forms alloy to be cast molten
Liquid, was poured in five minutes；
(ii) prepared by wax-pattern：Make consistent with automobile engine to exhaust joint cast member and include the wax-pattern of insulated feeder, and it is right
Wax-pattern is repaired, and wax-pattern is cleaned using wax base cleaning agent afterwards；
(iii) shell model sand mold is made in step (ii) obtained wax-pattern：The step is comprised the steps of：
A, wax-pattern place insulated feeder position on, with iron plate cover place insulated feeder surface, in case the surface is subject to
Pollution；
B, it is coated with the first surface layer in wax pattern surface：
First, slurries are prepared in wax pattern surface dip-coating zirconium powder and silica sol binder, the viscosity number of the slurries was at 42-53 seconds；
Then, the zircon sand with 550-650 mesh is manually being floated sand by the wax pattern surface of dip-coating slurries, and institute should be cleared up after floating sand
State the residual slurry and zircon sand on iron plate；
3rd, the wax-pattern after artificial floating sand is spontaneously dried, drying time is 18-20 hours；
C, it is coated with the second transition zone in wax pattern surface obtained in step B：
First, the slurries prepared with Malaysia powder and silica sol binder in wax pattern surface dip-coating obtained in step B, the slurries it is viscous
Angle value was at 41-45 seconds；
Then, the Malaysia sand with 500-800 mesh is manually being floated sand by the wax pattern surface of dip-coating slurries, should be cleared up after floating sand
Residual slurry and Malaysia sand on the iron plate；
3rd, the wax-pattern after artificial floating sand is put under the wind speed of 1.8-2.2 meter per seconds and is dried, drying time is that 16-36 is small
When；
D, it is coated with the 3rd back-up coat in wax pattern surface obtained in step C：
First, the slurries prepared with Malaysia powder and silica sol binder in wax pattern surface dip-coating obtained in step C, the slurries it is viscous
Angle value was at 22-25 seconds；
Then, the Malaysia sand with 150-200 mesh is manually being floated sand by the wax pattern surface of dip-coating slurries, should be cleared up after floating sand
Residual slurry and Malaysia sand on the iron plate；
3rd, wax-pattern is put in vacuum drying chamber and is dried, the temperature in vacuum drying chamber is controlled for 58-63 degrees Celsius,
The air pressure in vacuum drying chamber is controlled for 165-195Pa, drying time is 15-18 hours；
E, wax pattern surface obtained in step D be coated with the 4th slurry seal layer：
First, the slurries prepared with Malaysia powder and silica sol binder in wax pattern surface dip-coating obtained in step D, the slurries it is viscous
Angle value was at 8-12 seconds；
Then, the residual slurry cleared up on the iron plate；
3rd, wax-pattern is put in vacuum drying chamber and is dried, and controls the temperature in vacuum drying chamber for 48-58 degrees Celsius, control
Air pressure in vacuum drying chamber processed is 110-130Pa, and drying time is 11-13 hours；
(iv) dewax and be calcined：Using steam dewaxing, the pressure of steam is 0.6MPa, and the time is 38-45 minutes, and preceding the answering first that dewax
The iron plate at insulated feeder position is removed, shell mould is obtained, and shell mould is calcined；
(v) the (iv) roasting shell mould of step is put into the sandbox prepared by formative technology, blend compounds band is sealed to be used on the shell mould
The cast gate and insulated feeder of cast, are then placed in the mixed sand by preparing, and are carried out with foundry jolter again after piling mixed sand
Ram-jolt, forms sand mold；
(vi) the sand mold after step (v) ram-jolt and sandbox plane are struck off, and a core are pricked at interval of 15cm in mould surface,
The core is pricked to from model surface 3-5cm；
(vii) pour into a mould
Baking 1 hour is carried out to shell mould with the air-heater of 400-420 degrees Celsius of constant temperature before cast, during cast, pouring temperature is
1550-1650 degrees Celsius, after cast, casting is incubated 2-3 hours in sand mold；After moulding by casting, the demoulding is carried out, crushes shell mould,
The insulated feeder of casting is cut off, casting is obtained；
(viii) casting is coated into abrasion-resistant metal coating, the component of the abrasion-resistant metal coating is by mass percentage：Carbon：0.12-
0.15%, boron：0.13-0.16%, chromium：5.2-5.4%, titanium：2.1-2.6%, vanadium：1.3-1.8%, cobalt：0.33-0.65%, niobium：
0.13-0.25%, calcium：0.52-0.67%, barium：0.11-0.17%, tungsten：0.64-0.77%, zinc：2.3-2.6%, samarium：1.1-1.4%,
Neodymium：3.2-3.7%, promethium：0.12-0.15%, europium：0.29-0.34%, gadolinium：1.2-1.5%, aluminium：3.21-4.28%, auxiliary agent：5.1-
5.4%, balance of iron；
The component of the auxiliary agent is calculated by weight as：Zircon：8-11 parts, kaolinite：16-18 parts；
(ix) fin is installed in casting outer wall, elbow is obtained；The coating of the fin is obtained after being solidified by Graphene, wherein stone
The mass percent of each composition is in the solution of black alkene：Graphene：5.2-5.4%, dispersant：1.2-1.4%, surfactant：
2.4-3.4%, defoamer：3.2-4.1%, adhesive：15.2-16.4%, balance of isopropanol；
The adhesive is epoxy acrylic resin, polyurethane acrylic resin, Kynoar, butadiene-styrene rubber, polyacrylonitrile
And at least one of polyurethanes；
The dispersant is polyvinyl chloride, polyethylene glycol oxide, polyethylene glycol, Tissuemat E, polyvinyl chloride and polyvinylpyrrolidine
At least one of ketone；
The surfactant is Sodium Polyacrylate, neopelex, sodium alginate, sodium carboxymethylcellulose, tristearin
At least one of sour sodium and sodium cetanesulfonate；
The defoamer is at least one of benzyl carbinol oleate, dimethicone, GP defoamers and dimethyl silicone polymer；
(x) elbow is obtained final automobile engine to exhaust joint with except the sealing of carbon sound absorber is affixed.
7. the production technology of automobile engine to exhaust joint according to claim 6, it is characterised in that：The car engine
The mass percent of each composition is in machine exhaust joint：
C：0.03%, Al:0.56%,Zn:0.63%,Si：0.11%, Mn：0.77%, S：≤ 0.030%, P：≤ 0.030%, Cr：
0.02%, Ni：0.44%, Cu：0.15%, V：0.05%, Mo：0.16%, Ti：0.77%, B：0.01%, Pd：0.02%,Pt：0.26%,
W：0.33%,Ta：0.01%,Nd：0.03%,Ce：0.01%, Eu：0.11%,Lu:0.04%, Au：0.15%, Ag:0.42%, Ga：
0.01%, Y：0.12%, Sn：0.54%, Zr：0.06%, Re：0.02%,
Calcium oxide：0.12%, magnesia：0.13%, cupric oxide：0.11%, iron oxide：0.15%, manganese dioxide：0.06%,
Kocide SD：0.14%, calcium hydroxide：0.06%, balance of Fe.
8. the production technology of automobile engine to exhaust joint according to claim 6, it is characterised in that：The car engine
The mass percent of each composition is in machine exhaust joint：
C：0.02%, Al:0.83%,Zn:0.94%,Si：0.18%, Mn：0.88%, S：≤ 0.030%, P：≤ 0.030%, Cr：
0.04%, Ni：0.49%, Cu：0.19%, V：0.08%, Mo：0.19%, Ti：0.89%, B：0.02%, Pd：0.04%,Pt：0.39%,
W：0.46%,Ta：0.02%,Nd：0.07%,Ce：0.02%, Eu：0.14%,Lu:0.09%, Au：0.21%, Ag:0.54%, Ga：
0.02%, Y：0.17%, Sn：0.67%, Zr：0.11%, Re：0.05%,
Calcium oxide：0.15%, magnesia：0.15%, cupric oxide：0.18%, iron oxide：0.21%, manganese dioxide：0.14%,
Kocide SD：0.18%, calcium hydroxide：0.08%, balance of Fe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611128742.8A CN106762071A (en) | 2016-12-09 | 2016-12-09 | A kind of automobile engine to exhaust joint and its production technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611128742.8A CN106762071A (en) | 2016-12-09 | 2016-12-09 | A kind of automobile engine to exhaust joint and its production technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106762071A true CN106762071A (en) | 2017-05-31 |
Family
ID=58879436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611128742.8A Pending CN106762071A (en) | 2016-12-09 | 2016-12-09 | A kind of automobile engine to exhaust joint and its production technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106762071A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107254630A (en) * | 2017-06-11 | 2017-10-17 | 太仓捷公精密金属材料有限公司 | A kind of high-performance antifriction metal friction material |
| CN107557656A (en) * | 2017-09-03 | 2018-01-09 | 安徽天裕汽车零部件制造有限公司 | A kind of production technology of automobile ball arm |
| CN107805765A (en) * | 2017-11-14 | 2018-03-16 | 郑媛媛 | A kind of processing technology of valve adpting flange |
| CN108343498A (en) * | 2017-12-13 | 2018-07-31 | 江苏多为泵业股份有限公司 | A kind of exhaust flange assembly |
| CN109162774A (en) * | 2018-08-30 | 2019-01-08 | 江苏华强新能源科技有限公司 | A kind of inside holding plate for combustion turbine exhaustion diffuser |
| CN113996761A (en) * | 2021-11-29 | 2022-02-01 | 江门市联益金属制品有限公司 | Manufacturing process of mixing core of static mixer |
-
2016
- 2016-12-09 CN CN201611128742.8A patent/CN106762071A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107254630A (en) * | 2017-06-11 | 2017-10-17 | 太仓捷公精密金属材料有限公司 | A kind of high-performance antifriction metal friction material |
| CN107557656A (en) * | 2017-09-03 | 2018-01-09 | 安徽天裕汽车零部件制造有限公司 | A kind of production technology of automobile ball arm |
| CN107805765A (en) * | 2017-11-14 | 2018-03-16 | 郑媛媛 | A kind of processing technology of valve adpting flange |
| CN108343498A (en) * | 2017-12-13 | 2018-07-31 | 江苏多为泵业股份有限公司 | A kind of exhaust flange assembly |
| CN109162774A (en) * | 2018-08-30 | 2019-01-08 | 江苏华强新能源科技有限公司 | A kind of inside holding plate for combustion turbine exhaustion diffuser |
| CN109162774B (en) * | 2018-08-30 | 2021-05-18 | 江苏华强新能源科技有限公司 | Internal insulation board for exhaust diffusion section of gas turbine |
| CN113996761A (en) * | 2021-11-29 | 2022-02-01 | 江门市联益金属制品有限公司 | Manufacturing process of mixing core of static mixer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106762071A (en) | A kind of automobile engine to exhaust joint and its production technology | |
| CN107309405B (en) | A kind of casting method of super-duplex stainless steel 5A material impeller | |
| CN106247058B (en) | A kind of multi-pipeline connecting flange | |
| CN106224667B (en) | A kind of quick firm flange of connection | |
| CN106593608A (en) | Gas outlet end assembly of exhaust system of automobile engine and production technology thereof | |
| CN106523118B (en) | A kind of automobile engine exhaust system bracket | |
| CN106247048B (en) | A kind of efficient sealed flange | |
| CN104384449B (en) | A kind of method controlling essence casting turbo blade grain size | |
| CN109604539B (en) | Ultrasonic vibration device suitable for treating cast iron melt | |
| CN106837507A (en) | A kind of internal combustion engine cooling water pump and its production technology | |
| CN106244953A (en) | A kind of connection filters flange efficiently | |
| CN107245640A (en) | A kind of wind-powered electricity generation taper spindle and preparation method thereof and running gate system | |
| CN103667876A (en) | Multi-metal composite wear-resistant elbow pipe and preparation method thereof | |
| CN107805765A (en) | A kind of processing technology of valve adpting flange | |
| CN106636927B (en) | A kind of production technology of high-speed gear box cooling water pump | |
| CN112080745A (en) | Composite coating containing amorphous alloy identification layer and preparation method and application thereof | |
| CN107904499A (en) | A kind of processing technology of valve seal ring | |
| CN106756585A (en) | A kind of production technology of automobile engine to exhaust joint | |
| CN206409286U (en) | A kind of automobile engine to exhaust joint | |
| CN102764852B (en) | A kind of method of use V methods Foundry Production ultra-high manganese steel jaw | |
| CN104846285B (en) | One Albatra metal punching engine oil sump | |
| CN107893193A (en) | A kind of processing technology of valve fire resisting flange | |
| CN106086555A (en) | A kind of oil transfer pump | |
| CN108941437A (en) | A kind of manufacturing method of high abrasion Integral-type screw conveyor blade | |
| CN206409293U (en) | A kind of automobile engine exhaust system support |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |
|
| RJ01 | Rejection of invention patent application after publication |