CN106224667A - The quick firm flange of a kind of connection - Google Patents
The quick firm flange of a kind of connection Download PDFInfo
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- CN106224667A CN106224667A CN201610606836.5A CN201610606836A CN106224667A CN 106224667 A CN106224667 A CN 106224667A CN 201610606836 A CN201610606836 A CN 201610606836A CN 106224667 A CN106224667 A CN 106224667A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/032—Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
-
- 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
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
-
- 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
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- 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
- C22C38/14—Ferrous alloys, e.g. steel alloys containing 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
- C22C38/16—Ferrous alloys, e.g. steel alloys containing 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/02—Alloys containing metallic or non-metallic fibres or filaments characterised by the matrix material
- C22C49/08—Iron group metals
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/14—Alloys containing metallic or non-metallic fibres or filaments characterised by the fibres or filaments
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Mold Materials And Core Materials (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The present invention relates to the quick firm flange of a kind of connection, including the first flange, second flange, seal washer, fastening bolt and nut, the correspondence position of the first flange and the second flange offers at least two arcuate socket respectively, fastening bolt sequentially passes through the arcuate socket of the first flange and the second flange and is connected with nut thread, seal washer is arranged between the first flange and the second flange, second flange is provided with annular contiguous block near the first flange side, it is shaped with external screw thread outside annular contiguous block, first flange offers the link slot matched with annular contiguous block, link slot inwall is shaped with the female thread that the external screw thread with annular contiguous block matches.Contiguous block is first passed through threaded when first flange connecting quick firm flange of the present invention and the second Flange joint, it is bolted again, two connected modes cooperate, make the connection more firm stable of the first flange and the second flange, greatly reduce because connecting the problems such as the insecure leakage caused.
Description
Technical field
The present invention relates to the quick firm flange of a kind of connection, belong to technical field of pipeline connection.
Background technology
Flange is again ring flange or bead, makes pipe and the interconnective part of pipe, is connected to pipe end.On flange porose
Eye, can wear bolt, it is common that refer to open several fixing hole for connecting it at the periphery of the metallic object of a similar plate-like
Its thing.Existing Flange joint is exactly two pipelines, pipe fitting or equipment, is first individually fixed on a ring flange, two
Between individual ring flange, add flange gasket, tighten together with bolt, complete to connect.Flange joint is the important company of pipeline construction
Connecing mode, Flange joint is easy to use, it is possible to bear bigger pressure, and in industrial pipeline, the use of Flange joint is the widest
General, but during the installation or removal of common flange, need bolt to need installation or removal one by one, relatively time-consuming take
Power, has dragged slowly construction speed.And the big multiplex fastening bolt of current flange connects, when fastening bolt disabling damage, flange
Connect and also can lose efficacy.
Summary of the invention
The technical problem to be solved in the present invention is, not enough for prior art, proposes one and connects quick firm flange.
The present invention solves that the technical scheme that above-mentioned technical problem proposes is: the quick firm flange of a kind of connection, including
First flange, the second flange, seal washer, fastening bolt and nut, the correspondence position of the first flange and the second flange is opened respectively
Being provided with at least two arcuate socket, fastening bolt sequentially passes through the arcuate socket of the first flange and the second flange and is connected with nut thread,
Seal washer is arranged between described first flange and the second flange, and the second flange is provided with annular even near the first flange side
Connecing block, be shaped with external screw thread outside annular contiguous block, the first flange offers the link slot matched with annular contiguous block, link slot
Inwall is shaped with the female thread that the external screw thread with annular contiguous block matches；
In first flange and the second flange, the mass percent of each composition is: C:0.04-0.11%, Al:1.13-1.36%, Zn:
0.52-0.63%, Si:0.13-0.21%, Mn:0.33-0.46%, S :≤0.030%, P :≤0.030%, Cr:0.02-0.04%,
Ni:0.31-0.43%, Cu:0.33-0.37%, V:0.06-0.08%, Mo:0.01-0.02%, Ti:0.41-0.49%, B:0.01-
0.02%, Pd:0.02-0.03%, Pt:0.17-0.19%, W:0.26-0.29%, Ta:0.01-0.02%, Nd:0.05-0.07%,
Ce:0.04-0.07%, Eu:0.06-0.08%, Lu:0.11-0.16%, Au:0.35-0.46%, Ag:0.72-0.85%, Ga:
0.01-0.02%, Y:0.03-0.05%, Sn:0.36-0.43%, Zr:0.07-0.14%, Re:0.03-0.05%, Os:0.01-
0.02%, Hf:0.04-0.08%, Bi:0.14-0.18%, glass fibre: 0.11-0.16%, calcium oxide: 0.22-0.28% are sliding
Stone powder: 0.16-0.25%, magnesium oxide: 0.23-0.29%, copper oxide: 0.16-0.18%, ferrum oxide: 0.35-0.41%, dioxy
Change manganese: 0.46-0.49%, Copper hydrate: 0.06-0.09%, hydrated ferric oxide.: 0.11-0.14%, calcium hydroxide: 0.16-
0.19%, barium hydroxide: 0.14-0.17%, sodium chloride: 0.03-0.07%, calcium carbonate: 0.16-0.27%, potassium nitrate:
0.31-0.36%, magnesium chloride: 0.22-0.29%, calcium chloride: 0.06-0.11%, potassium chlorate: 0.16-0.18%, surplus is
Fe；
The casting technique of the first flange and the second flange comprises the following steps:
(i) melting raw material:
A, add raw materials in smelting furnace by the mass percent of composition each in predetermined flange, the temperature in smelting furnace is brought up to
1410 degrees Celsius to 1450 degrees Celsius, raw material is smelted formation alloy solution；
B, being cooled down by alloy solution obtained in the previous step, during cooling, water-cooled is combined with air cooling, first uses water-cooled with 16-18
DEG C/alloy solution water-cooled forms alloy to 490-520 DEG C by the cooldown rate of s, then air cooling is to 350-360 DEG C, then uses water
The cold cooldown rate with 13-15 DEG C/s by alloy water-cooled to room temperature；
C, heating, the alloy after previous step being cooled down adds in smelting furnace, the temperature in smelting furnace brings up to 1550 degrees Celsius extremely
1590 degrees Celsius, alloy is formed alloy solution by secondary smelting；
D, boiling hot bag, pour the alloy solution in smelting furnace into casting ladle, carries out scalding bag；
After e, boiling hot bag, the alloy solution in casting ladle is poured in electric furnace, the temperature in electric furnace is warming up to 1560 degrees Celsius
To 1590 degrees Celsius, heat 14 minutes to 18 minutes, the alloy solution in electric furnace is poured into casting ladle, ladle-to-ladle cooling；
F, ladle-to-ladle after, pour the alloy solution in casting ladle into electric furnace, temperature is down to 1450 to 1470 degrees Celsius, casting ladle bag cheat
In be sequentially added into the nodulizer of 1.4% to 1.5% and the inovulant of 0.2% to 0.3%, with 5 to 6kg sheet metal, steel-sheet thickness
For 0.5mm to 1mm, sheet metal is covered on nodulizer, inovulant, and consolidates；
G into, the alloy solution in electric furnace is poured the opposite side of casting ladle indent, spheroidizing reacion 70s to 75s, spheroidizing reacion fully after,
Spread the slag agent of one layer of collection, quickly skim；
H, quickly skim after, be sprinkled into swelling perlite powder immediately on alloy solution surface, slag hitting twice, after slag hitting completes, formed
Alloy solution to be cast, was poured in five minutes；
(ii) prepared by wax-pattern: uses low-temperature wax and machinery casting technology, makes wax that is consistent with cast member and that include insulated feeder
Mould, and wax-pattern is repaired, use wax base abluent that wax-pattern is carried out afterwards；
(iii) on the wax-pattern that (ii) step prepares, shell model sand mold is made: this step comprises the steps of
A, wax-pattern place insulated feeder position on, with EVA adhesive film cover place insulated feeder surface, in case this surface is subject to
To polluting；
B, it is coated with the first surface layer at wax pattern surface:
First, preparing serosity at wax pattern surface dip-coating zirconium powder with silica sol binder, the viscosity number of this serosity was at 52～60 seconds；
Then, manually float sand with the zircon sand of 150 mesh at the wax pattern surface through dip-coating serosity, after floating sand, EVA glue should be cleared up
Residual slurry on film and zircon sand；
3rd, the wax-pattern after manually floating sand carries out natural drying, and drying time is 9～12 hours；
C, the wax pattern surface prepared in step B are coated with the second transition zone:
First, in the wax pattern surface dip-coating serosity of Malaysia powder with silica sol binder preparation that step B is prepared, gluing of this serosity
Angle value was at 45～48 seconds；
Then, manually float sand with the Malaysia sand of 65～80 mesh at the wax pattern surface through dip-coating serosity, should clear up after floating sand
Residual slurry in EVA adhesive film and Malaysia sand；
3rd, the wax-pattern after manually floating sand is dried in being put in vacuum drying oven, and the temperature controlled in vacuum drying oven is
45～55 degrees Celsius, the air pressure controlled in vacuum drying oven is 110～130Pa, and drying time is 15～20 hours；
D, the wax pattern surface prepared in step C are coated with the 3rd back-up coat:
First, in the wax pattern surface dip-coating serosity of Malaysia powder with silica sol binder preparation that step C is prepared, gluing of this serosity
Angle value was at 21～27 seconds；
Then, manually float sand with the Malaysia sand of 6～9 mesh at the wax pattern surface through dip-coating serosity, after floating sand, EVA should be cleared up
Residual slurry on glued membrane and Malaysia sand；
3rd, it is dried in wax-pattern is put in vacuum drying oven, the temperature controlled in vacuum drying oven is 55～65 degrees Celsius,
The air pressure controlled in vacuum drying oven is 65～95Pa, and drying time is 12～15 hours；
E, the wax pattern surface prepared in step D are coated with the 4th slurry seal layer:
First, in the wax pattern surface dip-coating serosity of Malaysia powder with silica sol binder preparation that step D is prepared, gluing of this serosity
Angle value was at 5～6 seconds；
Then, the residual slurry in cleaning EVA adhesive film；
3rd, the wax-pattern after manually floating sand is put under the wind speed of 1.1～1.2 meter per seconds and is dried, and drying time is 12～36
Hour；
(iv) dewaxing: using steam dewaxing, the pressure of steam is 0.6MPa, and the time is 18～55 minutes, and should first will protect before dewaxing
Temperature emits the EVA adhesive film of port part and takes off, and prepares shell mould；
(v) shell mould roasting
Use temperature-gradient method baking modes that step shell mould (iv) is carried out roasting, in roasting: first liter 550 degrees Celsius before
Temperature speed controlling is at 100 degrees Celsius/hour, secondly, is incubated 1.5 hours at 550 degrees Celsius, then, is warmed up to 1150 at full speed and takes the photograph
Family name's degree, and keep 1150 degrees Celsius of half an hours, cooling of finally coming out of the stove；
(vi) the shell mould that (v) step is prepared by employing wire cutting machine cuts along the centre of each arcuate socket；
(vii) fix with adhesive tape after the shell mould of step (vi) well cutting being spliced completely, put in the sandbox by formative technology preparation, and
Seal on this shell mould for the cast gate poured into a mould and insulated feeder with adhesive tape, be then placed in the mixed sand through preparation, pile mixing
Carry out ram-jolt with foundry jolter again after sand, form sand mold；
(viii) the sand mold after step (vii) ram-jolt and sandbox plane are struck off, and prick a core at mould surface at interval of 15cm,
This core is pricked to from model surface 3～5cm；
(ix) pour into a mould
With the hot-air blower of constant temperature 300～350 degrees Celsius, shell mould is toasted more than 1 hour, during cast, pouring temperature before Jiao Zhu
Being 1500～1650 degrees Celsius, after cast, foundry goods is incubated 1～2 hour in sand mold；
(x) after moulding by casting, carry out the demoulding, every part shell mould is taken off successively, the insulated feeder of excision foundry goods, obtain foundry goods.
The improvement of technique scheme is: the arcuate socket of the first flange and the second flange is three, and three arcuate sockets are uniform
Arrange.
The improvement of technique scheme is: the first flange and the opposing both sides of the second flange are separately installed with pipe joint.
The improvement of technique scheme is: in the first flange and the second flange, the mass percent of each composition is: C:
0.05%, Al:1.15%, Zn:0.53%, Si:0.14%, Mn:0.34%, S :≤0.030%, P :≤0.030%, Cr:0.02%,
Ni:0.32%, Cu:0.34%, V:0.06%, Mo:0.01%, Ti:0.43%, B:0.01%, Pd:0.02%, Pt:0.18%, W:
0.27%, Ta:0.01%, Nd:0.06%, Ce:0.05%, Eu:0.06%, Lu:0.12%, Au:0.36%, Ag:0.75%, Ga:
0.01%, Y:0.03%, Sn:0.36%, Zr:0.08%, Re:0.04%, Os:0.01%, Hf:0.04%, Bi:0.14%, glass fibre:
0.12%, calcium oxide: 0.23%, Pulvis Talci: 0.17%, magnesium oxide: 0.24%, copper oxide: 0.16%, ferrum oxide: 0.36%,
Manganese dioxide: 0.46%, Copper hydrate: 0.07%, hydrated ferric oxide.: 0.12%, calcium hydroxide: 0.17%, barium hydroxide:
0.15%, sodium chloride: 0.04%, calcium carbonate: 0.17%, potassium nitrate: 0.32%, magnesium chloride: 0.23%, calcium chloride: 0.07%,
Potassium chlorate: 0.16%, surplus is Fe.
The improvement of technique scheme is: in the first flange and the second flange, the mass percent of each composition is: C:
0.08%, Al:1.33%, Zn:0.61%, Si:0.18%, Mn:0.42%, S :≤0.030%, P :≤0.030%, Cr:0.04%,
Ni:0.42%, Cu:0.37%, V:0.08%, Mo:0.02%, Ti:0.47%, B:0.02%, Pd:0.03%, Pt:0.19%, W:
0.29%, Ta:0.02%, Nd:0.07%, Ce:0.06%, Eu:0.07%, Lu:0.15%, Au:0.46%, Ag:0.85%, Ga:
0.02%, Y:0.05%, Sn:0.43%, Zr:0.13%, Re:0.05%, Os:0.02%, Hf:0.07%, Bi:0.17%, glass fibre:
0.16%, calcium oxide: 0.26%, Pulvis Talci: 0.25%, magnesium oxide: 0.29%, copper oxide: 0.18%, ferrum oxide: 0.39%,
Manganese dioxide: 0.49%, Copper hydrate: 0.09%, hydrated ferric oxide.: 0.13%, calcium hydroxide: 0.18%, barium hydroxide:
0.16%, sodium chloride: 0.06%, calcium carbonate: 0.27%, potassium nitrate: 0.35%, magnesium chloride: 0.28%, calcium chloride: 0.09%,
Potassium chlorate: 0.17%, surplus is Fe.
The improvement of technique scheme is: the step of the casting technique of the first flange and the second flange (i) in: b, by upper
The alloy solution that step obtains cools down, and during cooling, water-cooled is combined with air cooling, first uses water-cooled with the cooldown rate of 17 DEG C/s
Alloy solution water-cooled to 510 DEG C is formed alloy, and then air cooling is to 355 DEG C, then uses water-cooled to incite somebody to action with the cooldown rate of 14 DEG C/s
Alloy water-cooled is to room temperature.
The improvement of technique scheme is: the step of the casting technique of the first flange and the second flange (ix) in, cast before use
Shell mould is toasted 1.5 hours, during cast by the hot-air blower that constant temperature is 340 degrees Celsius, and pouring temperature is 1550 degrees Celsius, cast
After, foundry goods is incubated 2 hours in sand mold.
The present invention uses technique scheme to provide the benefit that: (1) is due to the first flange and the corresponding position of the second flange
Putting and offer at least two arcuate socket respectively, during installation, bolt only need to pass sequentially through arcuate socket just can be by the first flange and
Two flanges are fixed, it is not necessary to slowly the most slowly alignd by the installing hole on the first flange and the second method, substantially increase installation
Efficiency so that flange is installed and become efficient quick, can effectively speed up the work；(2) owing to the second flange is near the first method
Blue side is provided with annular contiguous block, is shaped with external screw thread outside annular contiguous block, and the first flange offers and annular contiguous block phase
The link slot of coupling, link slot inwall is shaped with the female thread that the external screw thread with annular contiguous block matches, the first flange and second
First passing through contiguous block during Flange joint threaded, then be bolted, two connected modes cooperate so that the first method
The blue connection more firm stable with the second flange, greatly reduces because connecting the problems such as the insecure leakage caused；(3) due to
It is provided with seal washer between one flange and the second flange, it is ensured that the sealing property of flange, prevents at flange at connecting portion
Reveal；(4) use the first flange and second flange of the Ingredient percent casting of the present invention, have corrosion-resistant, resistance to
High temperature, intensity height and the advantage of length in service life；(5), during raw material melting of the present invention, by boiling hot bag, ladle-to-ladle, spheroidizing reacion, skim
Cooperation with slag hitting so that raw material melting is more thorough, can effectively remove the impurity in raw material, improves casting quality；(6) originally
During invention raw material melting, use water-cooled to be combined with air cooling for the first time after melting and quickly cool down, after carry out melting for the second time, by soon
The cooling of speed and secondary smelting, the impurity in greatly reducing originally, improve the quality of final casting；(7) low-temperature wax is used
With the machinery cured mould of casting fabrication techniques, prepared model is the most careful；(8), when making shell model sand mold, cover by EVA adhesive film
Place the surface of insulated feeder, can effectively prevent that this surface is contaminated, the method placing band sword iron plate relative to tradition, use
EVA adhesive film is suitable for the rising head of all size, convenient efficiently, cost is lower；(9) when making shell model sand mold, true by using
The method that empty drying baker is dried with natural-wind dry combines so that shell mould is dried more thoroughly efficiently, the shell mould quality prepared
More preferably intensity is higher；(10) use temperature-gradient method baking modes that shell mould is carried out roasting, improve roasting quality, reduce shell mould
The probability of explosion；(11) present invention uses shell mould that (v) step prepared by wire cutting machine to cut along the centre of each arcuate socket
Cut so that after casting, can be conveniently stripped, it is not necessary to shell mould is crushed so that shell mould can be used for multiple times, and is substantially reduced
Casting cost.
Accompanying drawing explanation
The invention will be further described below in conjunction with the accompanying drawings:
Fig. 1 is the structural representation that the embodiment of the present invention connects quick firm flange；
Fig. 2 is the structural representation that the embodiment of the present invention connects the first flange of quick firm flange；
Wherein: 1-the first pipe joint；2-nut；3-the first flange；3a-arcuate socket；4-seal washer；5-annular contiguous block；
6-the second flange；7-fastening bolt；8-second pipe interface.
Detailed description of the invention
Embodiment one
The connection of the present embodiment fast firm flange, as illustrated in fig. 1 and 2, including first flange the 3, second flange 6, sealing gasket
Circle 4, fastening bolt 7 and nut 2, the correspondence position of the first flange 3 and the second flange 6 offers arcuate socket 3a respectively, fastens spiral shell
Bolt 7 sequentially passes through the arcuate socket 3a of the first flange 3 and the second flange 6 and threadeds with nut 2, and seal washer 4 is arranged on first
Between flange 3 and the second flange 6, the second flange 6 is provided with annular contiguous block 5, annular contiguous block 5 near the first flange 3 side
Outside is shaped with external screw thread, and the first flange 3 offers the link slot matched with annular contiguous block 5, and link slot inwall is shaped with and ring
The female thread that the external screw thread of shape contiguous block matches；The arcuate socket 3a of the first flange 3 and the second flange 6 is respectively three, three
The uniform setting of arcuate socket 3a.First flange 3 and the opposing both sides of the second flange 6 are separately installed with the first pipe joint 1 and second
Pipe joint 8.
In first flange and the second flange, the mass percent of each composition is: C:0.05%, Al:1.15%, Zn:0.53%,
Si:0.14%, Mn:0.34%, S :≤0.030%, P :≤0.030%, Cr:0.02%, Ni:0.32%, Cu:0.34%, V:0.06%,
Mo:0.01%, Ti:0.43%, B:0.01%, Pd:0.02%, Pt:0.18%, W:0.27%, Ta:0.01%, Nd:0.06%, Ce:
0.05%, Eu:0.06%, Lu:0.12%, Au:0.36%, Ag:0.75%, Ga:0.01%, Y:0.03%, Sn:0.36%, Zr:0.08%,
Re:0.04%, Os:0.01%, Hf:0.04%, Bi:0.14%, glass fibre: 0.12%, calcium oxide: 0.23%, Pulvis Talci:
0.17%, magnesium oxide: 0.24%, copper oxide: 0.16%, ferrum oxide: 0.36%, manganese dioxide: 0.46%, Copper hydrate:
0.07%, hydrated ferric oxide.: 0.12%, calcium hydroxide: 0.17%, barium hydroxide: 0.15%, sodium chloride: 0.04%, calcium carbonate:
0.17%, potassium nitrate: 0.32%, magnesium chloride: 0.23%, calcium chloride: 0.07%, potassium chlorate: 0.16%, surplus is Fe.
The casting technique of the first flange and the second flange comprises the following steps:
(i) melting raw material:
A, add raw materials in smelting furnace by the mass percent of composition each in predetermined flange, the temperature in smelting furnace is brought up to
1410 degrees Celsius to 1450 degrees Celsius, raw material is smelted formation alloy solution；
B, being cooled down by alloy solution obtained in the previous step, during cooling, water-cooled is combined with air cooling, first use water-cooled with 17 DEG C/
Alloy solution water-cooled to 510 DEG C is formed alloy by the cooldown rate of s, and then air cooling is to 355 DEG C, then uses water-cooled with 14 DEG C/s's
Cooldown rate by alloy water-cooled to room temperature；
C, heating, the alloy after previous step being cooled down adds in smelting furnace, the temperature in smelting furnace brings up to 1550 degrees Celsius extremely
1590 degrees Celsius, alloy is formed alloy solution by secondary smelting；
D, boiling hot bag, pour the alloy solution in smelting furnace into casting ladle, carries out scalding bag；
After e, boiling hot bag, the alloy solution in casting ladle is poured in electric furnace, the temperature in electric furnace is warming up to 1560 degrees Celsius
To 1590 degrees Celsius, heat 14 minutes to 18 minutes, the alloy solution in electric furnace is poured into casting ladle, ladle-to-ladle cooling；
F, ladle-to-ladle after, pour the alloy solution in casting ladle into electric furnace, temperature is down to 1450 to 1470 degrees Celsius, casting ladle bag cheat
In be sequentially added into the nodulizer of 1.4% to 1.5% and the inovulant of 0.2% to 0.3%, with 5 to 6kg sheet metal, steel-sheet thickness
For 0.5mm to 1mm, sheet metal is covered on nodulizer, inovulant, and consolidates；
G into, the alloy solution in electric furnace is poured the opposite side of casting ladle indent, spheroidizing reacion 70s to 75s, spheroidizing reacion fully after,
Spread the slag agent of one layer of collection, quickly skim；
H, quickly skim after, be sprinkled into swelling perlite powder immediately on alloy solution surface, slag hitting twice, after slag hitting completes, formed
Alloy solution to be cast, was poured in five minutes；
(ii) prepared by wax-pattern: uses low-temperature wax and machinery casting technology, makes wax that is consistent with cast member and that include insulated feeder
Mould, and wax-pattern is repaired, use wax base abluent that wax-pattern is carried out afterwards；
(iii) on the wax-pattern that (ii) step prepares, shell model sand mold is made: this step comprises the steps of
A, wax-pattern place insulated feeder position on, with EVA adhesive film cover place insulated feeder surface, in case this surface is subject to
To polluting；
B, it is coated with the first surface layer at wax pattern surface:
First, preparing serosity at wax pattern surface dip-coating zirconium powder with silica sol binder, the viscosity number of this serosity was at 52～60 seconds；
Then, manually float sand with the zircon sand of 150 mesh at the wax pattern surface through dip-coating serosity, after floating sand, EVA glue should be cleared up
Residual slurry on film and zircon sand；
3rd, the wax-pattern after manually floating sand carries out natural drying, and drying time is 9～12 hours；
C, the wax pattern surface prepared in step B are coated with the second transition zone:
First, in the wax pattern surface dip-coating serosity of Malaysia powder with silica sol binder preparation that step B is prepared, gluing of this serosity
Angle value was at 45～48 seconds；
Then, manually float sand with the Malaysia sand of 65～80 mesh at the wax pattern surface through dip-coating serosity, should clear up after floating sand
Residual slurry in EVA adhesive film and Malaysia sand；
3rd, the wax-pattern after manually floating sand is dried in being put in vacuum drying oven, and the temperature controlled in vacuum drying oven is
45～55 degrees Celsius, the air pressure controlled in vacuum drying oven is 110～130Pa, and drying time is 15～20 hours；
D, the wax pattern surface prepared in step C are coated with the 3rd back-up coat:
First, in the wax pattern surface dip-coating serosity of Malaysia powder with silica sol binder preparation that step C is prepared, gluing of this serosity
Angle value was at 21～27 seconds；
Then, manually float sand with the Malaysia sand of 6～9 mesh at the wax pattern surface through dip-coating serosity, after floating sand, EVA should be cleared up
Residual slurry on glued membrane and Malaysia sand；
3rd, it is dried in wax-pattern is put in vacuum drying oven, the temperature controlled in vacuum drying oven is 55～65 degrees Celsius,
The air pressure controlled in vacuum drying oven is 65～95Pa, and drying time is 12～15 hours；
E, the wax pattern surface prepared in step D are coated with the 4th slurry seal layer:
First, in the wax pattern surface dip-coating serosity of Malaysia powder with silica sol binder preparation that step D is prepared, gluing of this serosity
Angle value was at 5～6 seconds；
Then, the residual slurry in cleaning EVA adhesive film；
3rd, the wax-pattern after manually floating sand is put under the wind speed of 1.1～1.2 meter per seconds and is dried, and drying time is 12～36
Hour；
(iv) dewaxing: using steam dewaxing, the pressure of steam is 0.6MPa, and the time is 18～55 minutes, and should first will protect before dewaxing
Temperature emits the EVA adhesive film of port part and takes off, and prepares shell mould；
(v) shell mould roasting
Use temperature-gradient method baking modes that step shell mould (iv) is carried out roasting, in roasting: first liter 550 degrees Celsius before
Temperature speed controlling is at 100 degrees Celsius/hour, secondly, is incubated 1.5 hours at 550 degrees Celsius, then, is warmed up to 1150 at full speed and takes the photograph
Family name's degree, and keep 1150 degrees Celsius of half an hours, cooling of finally coming out of the stove；
(vi) the shell mould that (v) step is prepared by employing wire cutting machine cuts along the centre of each arcuate socket；
(vii) fix with adhesive tape after the shell mould of step (vi) well cutting being spliced completely, put in the sandbox by formative technology preparation, and
Seal on this shell mould for the cast gate poured into a mould and insulated feeder with adhesive tape, be then placed in the mixed sand through preparation, pile mixing
Carry out ram-jolt with foundry jolter again after sand, form sand mold；
(viii) the sand mold after step (vii) ram-jolt and sandbox plane are struck off, and prick a core at mould surface at interval of 15cm,
This core is pricked to from model surface 3～5cm；
(ix) pour into a mould
With the hot-air blower of constant temperature 340 degrees Celsius, shell mould being toasted 1.5 hours, during cast before Jiao Zhu, pouring temperature is 1550
Degree Celsius, after cast, foundry goods is incubated 2 hours in sand mold；
(x) after moulding by casting, carry out the demoulding, every part shell mould is taken off successively, the insulated feeder of excision foundry goods, obtain foundry goods.
Embodiment two
The connection of the present embodiment fast firm flange is essentially identical with embodiment one, and difference is, the first flange and the
In two flanges, the mass percent of each composition is: C:0.08%, Al:1.33%, Zn:0.61%, Si:0.18%, Mn:0.42%, S:
≤ 0.030%, P :≤0.030%, Cr:0.04%, Ni:0.42%, Cu:0.37%, V:0.08%, Mo:0.02%, Ti:0.47%, B:
0.02%, Pd:0.03%, Pt:0.19%, W:0.29%, Ta:0.02%, Nd:0.07%, Ce:0.06%, Eu:0.07%, Lu:
0.15%, Au:0.46%, Ag:0.85%, Ga:0.02%, Y:0.05%, Sn:0.43%, Zr:0.13%, Re:0.05%, Os:0.02%,
Hf:0.07%, Bi:0.17%, glass fibre: 0.16%, calcium oxide: 0.26%, Pulvis Talci: 0.25%, magnesium oxide: 0.29%, oxygen
Change copper: 0.18%, ferrum oxide: 0.39%, manganese dioxide: 0.49%, Copper hydrate: 0.09%, hydrated ferric oxide.: 0.13%, hydrogen
Calcium oxide: 0.18%, barium hydroxide: 0.16%, sodium chloride: 0.06%, calcium carbonate: 0.27%, potassium nitrate: 0.35%, chlorination
Magnesium: 0.28%, calcium chloride: 0.09%, potassium chlorate: 0.17%, surplus is Fe.
The present invention is not limited to above-described embodiment.The technical scheme that all employing equivalents are formed, all falls within the present invention and wants
The protection domain asked.
Claims (7)
1. one kind connects quick firm flange, it is characterised in that: include the first flange, the second flange, seal washer, fastening spiral shell
Screw bolt and nut, the correspondence position of described first flange and the second flange offers at least two arcuate socket, described fastening spiral shell respectively
Bolt sequentially passes through the arcuate socket of the first flange and the second flange and is connected with described nut thread, and described seal washer is arranged on described
Between first flange and the second flange, described second flange is provided with annular contiguous block near described first flange side, described
Being shaped with external screw thread outside annular contiguous block, described first flange offers the link slot matched with described annular contiguous block, institute
State link slot inwall and be shaped with the female thread that the external screw thread with described annular contiguous block matches；
In described first flange and the second flange, the mass percent of each composition is: C:0.04-0.11%, Al:1.13-1.36%,
Zn:0.52-0.63%, Si:0.13-0.21%, Mn:0.33-0.46%, S :≤0.030%, P :≤0.030%, Cr:0.02-
0.04%, Ni:0.31-0.43%, Cu:0.33-0.37%, V:0.06-0.08%, Mo:0.01-0.02%, Ti:0.41-0.49%, B:
0.01-0.02%, Pd:0.02-0.03%, Pt:0.17-0.19%, W:0.26-0.29%, Ta:0.01-0.02%, Nd:0.05-
0.07%, Ce:0.04-0.07%, Eu:0.06-0.08%, Lu:0.11-0.16%, Au:0.35-0.46%, Ag:0.72-0.85%,
Ga:0.01-0.02%, Y:0.03-0.05%, Sn:0.36-0.43%, Zr:0.07-0.14%, Re:0.03-0.05%, Os:0.01-
0.02%, Hf:0.04-0.08%, Bi:0.14-0.18%, glass fibre: 0.11-0.16%, calcium oxide: 0.22-0.28% are sliding
Stone powder: 0.16-0.25%, magnesium oxide: 0.23-0.29%, copper oxide: 0.16-0.18%, ferrum oxide: 0.35-0.41%, dioxy
Change manganese: 0.46-0.49%, Copper hydrate: 0.06-0.09%, hydrated ferric oxide.: 0.11-0.14%, calcium hydroxide: 0.16-
0.19%, barium hydroxide: 0.14-0.17%, sodium chloride: 0.03-0.07%, calcium carbonate: 0.16-0.27%, potassium nitrate:
0.31-0.36%, magnesium chloride: 0.22-0.29%, calcium chloride: 0.06-0.11%, potassium chlorate: 0.16-0.18%, surplus is
Fe；
The casting technique of described first flange and the second flange comprises the following steps:
(i) melting raw material:
A, add raw materials in smelting furnace by the mass percent of composition each in predetermined flange, the temperature in smelting furnace is brought up to
1410 degrees Celsius to 1450 degrees Celsius, raw material is smelted formation alloy solution；
B, being cooled down by alloy solution obtained in the previous step, during cooling, water-cooled is combined with air cooling, first uses water-cooled with 16-18
DEG C/alloy solution water-cooled forms alloy to 490-520 DEG C by the cooldown rate of s, then air cooling is to 350-360 DEG C, then uses water
The cold cooldown rate with 13-15 DEG C/s by alloy water-cooled to room temperature；
C, heating, the alloy after previous step being cooled down adds in smelting furnace, the temperature in smelting furnace brings up to 1550 degrees Celsius extremely
1590 degrees Celsius, alloy is formed alloy solution by secondary smelting；
D, boiling hot bag, pour the alloy solution in smelting furnace into casting ladle, carries out scalding bag；
After e, boiling hot bag, the alloy solution in casting ladle is poured in electric furnace, the temperature in electric furnace is warming up to 1560 degrees Celsius
To 1590 degrees Celsius, heat 14 minutes to 18 minutes, the alloy solution in electric furnace is poured into casting ladle, ladle-to-ladle cooling；
F, ladle-to-ladle after, pour the alloy solution in casting ladle into electric furnace, temperature is down to 1450 to 1470 degrees Celsius, casting ladle bag cheat
In be sequentially added into the nodulizer of 1.4% to 1.5% and the inovulant of 0.2% to 0.3%, with 5 to 6kg sheet metal, steel-sheet thickness
For 0.5mm to 1mm, sheet metal is covered on nodulizer, inovulant, and consolidates；
G into, the alloy solution in electric furnace is poured the opposite side of casting ladle indent, spheroidizing reacion 70s to 75s, spheroidizing reacion fully after,
Spread the slag agent of one layer of collection, quickly skim；
H, quickly skim after, be sprinkled into swelling perlite powder immediately on alloy solution surface, slag hitting twice, after slag hitting completes, formed
Alloy solution to be cast, was poured in five minutes；
(ii) prepared by wax-pattern: uses low-temperature wax and machinery casting technology, makes wax that is consistent with cast member and that include insulated feeder
Mould, and wax-pattern is repaired, use wax base abluent that wax-pattern is carried out afterwards；
(iii) on the wax-pattern that (ii) step prepares, shell model sand mold is made: this step comprises the steps of
A, wax-pattern place insulated feeder position on, with EVA adhesive film cover place insulated feeder surface, in case this surface is subject to
To polluting；
B, it is coated with the first surface layer at wax pattern surface:
First, preparing serosity at wax pattern surface dip-coating zirconium powder with silica sol binder, the viscosity number of this serosity was at 52～60 seconds；
Then, manually float sand with the zircon sand of 150 mesh at the wax pattern surface through dip-coating serosity, should clear up described after floating sand
Residual slurry in EVA adhesive film and zircon sand；
3rd, the wax-pattern after manually floating sand carries out natural drying, and drying time is 9～12 hours；
C, the wax pattern surface prepared in step B are coated with the second transition zone:
First, in the wax pattern surface dip-coating serosity of Malaysia powder with silica sol binder preparation that step B is prepared, gluing of this serosity
Angle value was at 45～48 seconds；
Then, manually float sand with the Malaysia sand of 65～80 mesh at the wax pattern surface through dip-coating serosity, should clear up after floating sand
Residual slurry in described EVA adhesive film and Malaysia sand；
3rd, the wax-pattern after manually floating sand is dried in being put in vacuum drying oven, and the temperature controlled in vacuum drying oven is
45～55 degrees Celsius, the air pressure controlled in vacuum drying oven is 110～130Pa, and drying time is 15～20 hours；
D, the wax pattern surface prepared in step C are coated with the 3rd back-up coat:
First, in the wax pattern surface dip-coating serosity of Malaysia powder with silica sol binder preparation that step C is prepared, gluing of this serosity
Angle value was at 21～27 seconds；
Then, manually float sand with the Malaysia sand of 6～9 mesh at the wax pattern surface through dip-coating serosity, after floating sand, institute should be cleared up
State the residual slurry in EVA adhesive film and Malaysia sand；
3rd, it is dried in wax-pattern is put in vacuum drying oven, the temperature controlled in vacuum drying oven is 55～65 degrees Celsius,
The air pressure controlled in vacuum drying oven is 65～95Pa, and drying time is 12～15 hours；
E, the wax pattern surface prepared in step D are coated with the 4th slurry seal layer:
First, in the wax pattern surface dip-coating serosity of Malaysia powder with silica sol binder preparation that step D is prepared, gluing of this serosity
Angle value was at 5～6 seconds；
Then, the residual slurry in described EVA adhesive film is cleared up；
3rd, the wax-pattern after manually floating sand is put under the wind speed of 1.1～1.2 meter per seconds and is dried, and drying time is 12～36
Hour；
(iv) dewaxing: using steam dewaxing, the pressure of steam is 0.6MPa, and the time is 18～55 minutes, and should first will protect before dewaxing
Temperature emits the EVA adhesive film of port part and takes off, and prepares shell mould；
(v) shell mould roasting
Use temperature-gradient method baking modes that step shell mould (iv) is carried out roasting, in roasting: first liter 550 degrees Celsius before
Temperature speed controlling is at 100 degrees Celsius/hour, secondly, is incubated 1.5 hours at 550 degrees Celsius, then, is warmed up to 1150 at full speed and takes the photograph
Family name's degree, and keep 1150 degrees Celsius of half an hours, cooling of finally coming out of the stove；
(vi) the shell mould that (v) step is prepared by employing wire cutting machine cuts along the centre of each arcuate socket；
(vii) fix with adhesive tape after the shell mould of step (vi) well cutting being spliced completely, put in the sandbox by formative technology preparation, and
Seal on this shell mould for the cast gate poured into a mould and insulated feeder with adhesive tape, be then placed in the mixed sand through preparation, pile mixing
Carry out ram-jolt with foundry jolter again after sand, form sand mold；
(viii) the sand mold after step (vii) ram-jolt and sandbox plane are struck off, and prick a core at mould surface at interval of 15cm,
This core is pricked to from model surface 3～5cm；
(ix) pour into a mould
With the hot-air blower of constant temperature 300～350 degrees Celsius, shell mould is toasted more than 1 hour, during cast, pouring temperature before Jiao Zhu
Being 1500～1650 degrees Celsius, after cast, foundry goods is incubated 1～2 hour in sand mold；
(x) after moulding by casting, carry out the demoulding, every part shell mould is taken off successively, the insulated feeder of excision foundry goods, obtain foundry goods.
Connection the most according to claim 1 fast firm flange, it is characterised in that: described first flange and the second flange
Arcuate socket be three, described three uniform settings of arcuate socket.
Connection the most according to claim 2 fast firm flange, it is characterised in that: described first flange and the second flange
Opposing both sides are separately installed with pipe joint.
Connection the most according to claim 3 fast firm flange, it is characterised in that: described first flange and the second flange
In the mass percent of each composition be: C:0.05%, Al:1.15%, Zn:0.53%, Si:0.14%, Mn:0.34%, S :≤
0.030%, P :≤0.030%, Cr:0.02%, Ni:0.32%, Cu:0.34%, V:0.06%, Mo:0.01%, Ti:0.43%, B:
0.01%, Pd:0.02%, Pt:0.18%, W:0.27%, Ta:0.01%, Nd:0.06%, Ce:0.05%, Eu:0.06%, Lu:
0.12%, Au:0.36%, Ag:0.75%, Ga:0.01%, Y:0.03%, Sn:0.36%, Zr:0.08%, Re:0.04%, Os:0.01%,
Hf:0.04%, Bi:0.14%, glass fibre: 0.12%, calcium oxide: 0.23%, Pulvis Talci: 0.17%, magnesium oxide: 0.24%, oxygen
Change copper: 0.16%, ferrum oxide: 0.36%, manganese dioxide: 0.46%, Copper hydrate: 0.07%, hydrated ferric oxide.: 0.12%, hydrogen
Calcium oxide: 0.17%, barium hydroxide: 0.15%, sodium chloride: 0.04%, calcium carbonate: 0.17%, potassium nitrate: 0.32%, chlorination
Magnesium: 0.23%, calcium chloride: 0.07%, potassium chlorate: 0.16%, surplus is Fe.
Connection the most according to claim 3 fast firm flange, it is characterised in that: described first flange and the second flange
In the mass percent of each composition be: C:0.08%, Al:1.33%, Zn:0.61%, Si:0.18%, Mn:0.42%, S :≤
0.030%, P :≤0.030%, Cr:0.04%, Ni:0.42%, Cu:0.37%, V:0.08%, Mo:0.02%, Ti:0.47%, B:
0.02%, Pd:0.03%, Pt:0.19%, W:0.29%, Ta:0.02%, Nd:0.07%, Ce:0.06%, Eu:0.07%, Lu:
0.15%, Au:0.46%, Ag:0.85%, Ga:0.02%, Y:0.05%, Sn:0.43%, Zr:0.13%, Re:0.05%, Os:0.02%,
Hf:0.07%, Bi:0.17%, glass fibre: 0.16%, calcium oxide: 0.26%, Pulvis Talci: 0.25%, magnesium oxide: 0.29%, oxygen
Change copper: 0.18%, ferrum oxide: 0.39%, manganese dioxide: 0.49%, Copper hydrate: 0.09%, hydrated ferric oxide.: 0.13%, hydrogen
Calcium oxide: 0.18%, barium hydroxide: 0.16%, sodium chloride: 0.06%, calcium carbonate: 0.27%, potassium nitrate: 0.35%, chlorination
Magnesium: 0.28%, calcium chloride: 0.09%, potassium chlorate: 0.17%, surplus is Fe.
6. according to the fast firm flange of the connection described in any claim of claim 1 to 5, it is characterised in that: described
The step of the casting technique of the first flange and the second flange (i) in: b, alloy solution obtained in the previous step is cooled down, cooling
Time water-cooled be combined with air cooling, first use water-cooled, with the cooldown rate of 17 DEG C/s, alloy solution water-cooled to 510 DEG C is formed alloy,
Then air cooling is to 355 DEG C, then use water-cooled with the cooldown rate of 14 DEG C/s by alloy water-cooled to room temperature.
7. according to the fast firm flange of the connection described in any claim of claim 1 to 5, it is characterised in that: appoint
Connection described in one claim fast firm flange, it is characterised in that: described first flange and the founder of the second flange
The step of skill (ix) in, with the hot-air blower of constant temperature 340 degrees Celsius, shell mould is toasted 1.5 hours, during cast before cast, cast is warm
Degree is 1550 degrees Celsius, and after cast, foundry goods is incubated 2 hours in sand mold.
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| CN107245659A (en) * | 2017-05-27 | 2017-10-13 | 太仓源壬金属科技有限公司 | A kind of antifriction metal (AFM) steel |
| CN107267872A (en) * | 2017-05-27 | 2017-10-20 | 太仓明仕金属制造有限公司 | A kind of high-performance abrasion-proof stamping parts |
| CN107716866A (en) * | 2017-11-14 | 2018-02-23 | 曹安飞 | A kind of production technology of water-saving closet sewage draining valve |
| CN111500947A (en) * | 2020-05-22 | 2020-08-07 | 烟台南山学院 | Manufacturing process of high-performance metal material |
| CN112945301A (en) * | 2021-02-03 | 2021-06-11 | 南京国中环保工程有限公司 | Intelligent environment on-line monitoring device |
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| CN106224667B (en) | 2018-07-17 |
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Denomination of invention: A fast and firm flange Effective date of registration: 20220308 Granted publication date: 20180717 Pledgee: Jiangsu Jinmao Financing Guarantee Co.,Ltd. Pledgor: YANCHENG FENG GONG MACHINERY Co.,Ltd. Registration number: Y2022980002235 |