CN106636927A - Production process of cooling water pump for high-speed gear box - Google Patents
Production process of cooling water pump for high-speed gear box Download PDFInfo
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- CN106636927A CN106636927A CN201610892848.9A CN201610892848A CN106636927A CN 106636927 A CN106636927 A CN 106636927A CN 201610892848 A CN201610892848 A CN 201610892848A CN 106636927 A CN106636927 A CN 106636927A
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- water pump
- foundry goods
- cooled
- cooling water
- gear box
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
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- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
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- C21D6/00—Heat treatment of ferrous alloys
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Abstract
The invention discloses a cooling water pump for a high-speed gear box. The cooling water pump is prepared from, by mass percent, 0.02%-0.03% of C, 1.16%-1.83% of Al, 1.22%-1.39% of Zn, 0.37%-0.58% of Mn, not larger than 0.030% of S, not larger than 0.030% of P, 0.02%-0.04% of Cr, 0.84%-1.19% of Ni, 0.25%-0.29% of Cu, 0.02%-0.05%of V, 0.06%-0.09% of Mo, 1.33%-1.59% of Ti, 0.01%-0.02% of B, 0.02%-0.04% of Pd, 0.33%-0.49% of Pt, 0.23%-0.36% of W, 0.13%-0.16% of Nd, 0.11%-0.12% of Ce, 0.07%-0.15% of Eu, 0.03%-0.07% of Lu, 0.33%-0.42% of Au, 0.86%-1.04% of Ag, 0.01%-0.02% of Ga, 0.21%-0.27% of Y, 1.34%-1.58% of Sn, 0.02%-0.07% of Zr, 0.01%-0.03% of Re, 0.05%-0.09% of Bi, 0.33%-0.37% of magnesium oxide, 0.08%-0.13% of copper oxide, 0.12%-0.18% of ferric oxide, 0.06%-0.09% of manganese dioxide, 0.05%-0.08% of copper hydroxide, 0.03%-0.05% of ferric hydroxide and the balance Fe.
Description
Technical field
The present invention relates to a kind of production technology of high-speed gear box cooling water pump, belongs to technical field of automobile.
Background technology
Cooling is needed during internal combustion engine in case temperature rising, generally carries out water-cooled using cooling water pump press-in cooling water；
Because Structure of Internal-Combustion Engine is complicated, its internal cooling water channel curved narrow is big to resistance to water-flow, therefore cooling water pump is in certain operating mode
The key for affecting internal combustion engine cooling effect has been become with the uninterrupted under use condition.
Existing high-speed gear box cooling water pump major part is mechanical water pump, and the operating of water pump is passed by engine spindle
Dynamic, when engine speed is high, pump rotary speed is just high, and flow just increases, and when engine speed is low, flow reduces；Due to engine
During cold start-up, engine itself does not need cooling system work, but engine water pump can operate with engine and start work
Make, can cause that engine warm-up time is longer, engine consumption is higher, discharge poor etc., the flow of its water pump can not be according to sending out
The demand of motivation cooling system is adjusted.
The content of the invention
The technical problem to be solved in the present invention is, not enough for prior art, proposes that a kind of flow is big, cools down fast and energy
The production technology of enough high-speed gear box cooling water pumps being adjusted according to the demand of engine-cooling system.
The present invention is that the technical scheme for solving above-mentioned technical problem proposition is：A kind of high-speed gear box cooling water pump is high
The mass percent of each composition is in fast gear-box cooling water pump：C：0.02-0.03%, Al:1.16-1.83%,Zn:1.22-
1.39%,Mn：0.37-0.58%, S：≤ 0.030%, P：≤ 0.030%, Cr：0.02-0.04%, Ni：0.84-1.19%, Cu：
0.25-0.29%, V：0.02-0.05%, Mo：0.06-0.09%, Ti：1.33-1.59%, B：0.01-0.02%, Pd：0.02-
0.04%,
Pt：0.33-0.49%,W：0.23-0.36%,Nd：0.13-0.16%,Ce：0.11-0.12%,Eu：0.07-0.15%,Lu:
0.03-0.07%, Au：0.33-0.42%, Ag:0.86-1.04%, Ga：0.01-0.02%, Y：0.21-0.27%, Sn：1.34-
1.58%, Zr：0.02-0.07%, Re：0.01-0.03%, Bi：0.05-0.09%, magnesia：0.33-0.37%, cupric oxide：
0.08-0.13%, iron oxide：0.12-0.18%, manganese dioxide：0.06-0.09%, Kocide SD：0.05-0.08%, hydrogen-oxygen
Change iron：0.03-0.05%, balance of Fe；
The production technology of high-speed gear box cooling water pump is comprised the following steps：
(i) melting raw material：
A, add raw materials into smelting furnace by the mass percent of each composition in predetermined high-speed gear box cooling water pump, by smelting furnace
Interior temperature brings up to 1520 degrees Celsius to 1540 degrees Celsius, and raw material is smelted to form alloy solution；
B, alloy solution obtained in the previous step is cooled down, water-cooled is combined with air cooling during cooling, first adopts water-cooled with 15-18
DEG C/alloy solution water-cooled to 450-460 DEG C of formation alloy, is then air cooled to 340-350 DEG C by the cooldown rate of s, then using water
The cold cooldown rate with 18-20 DEG C/s is by alloy water-cooled to room temperature；
C, heating, the alloy after previous step is cooled down carries out secondary smelting in smelting furnace, and the temperature in smelting furnace is brought up into 1580
Degree Celsius to 1610 degrees Celsius, alloy forms alloy solution by secondary smelting；
D, pour the alloy solution in smelting furnace into electric furnace, in the bag hole of casting ladle nodulizer and inovulant are sequentially added, use thin steel
Plate is covered on nodulizer, inovulant, and is consolidated, and steel-sheet thickness is 0.5mm to 1mm；
E, the opposite side that the alloy solution in electric furnace is poured into casting ladle indent, spheroidizing reacion 70s to 85s, after spheroidizing reacion is abundant,
The slag agent of one layer of collection is spread, is quickly skimmed；
F, quickly skim after, be sprinkled into swelling perlite powder on alloy solution surface immediately, twice of slag hitting after the completion of slag hitting, is formed
Alloy solution to be cast, was poured in five minutes；
(ii) prepared by wax-pattern：Using mechanical casting, make consistent with the impeller size of high-speed gear box cooling water pump and include
The wax-pattern of insulated feeder, and wax-pattern is repaired, afterwards wax-pattern is cleaned using wax base cleaning agent；
(iii) shell model sand mold is made in step (ii) obtained wax-pattern；
(iv) dewax：Using steam dewaxing, the pressure of steam is 0.8MPa, and the time is 25-45 minutes, and shell mould is obtained；
(v) shell mould roasting；
During (vi) the (v) roasting shell mould of step to be 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, is then placed in the mixed sand through preparing, and pile after mixed sand is carried out again with foundry jolter
Ram-jolt, forms sand mold；
(vii) pour into a mould
Pouring into a mould the air-heater of front 400-420 degree Celsius of constant temperature carries out baking 1 hour to shell mould, and during cast, pouring temperature is
1550-1650 degree Celsius, after cast, foundry goods is incubated 2-3 hours in sand mold；After moulding by casting, the demoulding is carried out, crushes shell mould,
The insulated feeder of excision foundry goods, obtains foundry goods；
(viii) the foundry goods after moulding by casting is machined, and cylinder iron Vehicle Processing goes out water pump cover, rotating shaft and cover plate；
(ix) the foundry goods after Vehicle Processing is heat-treated, concrete technology is：
A, heating：Foundry goods is heated into 640-665 DEG C, and is incubated 45-55min；
B, cooling：After adopting the air-cooled cooldown rate with 15-18 DEG C/s to accelerate to be cooled to 410-420 DEG C by foundry goods, then it is air cooled to
Room temperature；
C, once it is tempered：Foundry goods is heated to after 560-575 DEG C of tempering 41-43min, warm 30-45s is treated, automobile gearbox tooth is made
Wheel equalizing temperature, after accelerating to be cooled to 355-365 DEG C with the cooldown rate of 28-35 DEG C/s afterwards, then is air cooled to room temperature；
D, double tempering：Automobile gearbox gear is heated to be air cooled to room temperature after 614-618 DEG C of tempering 53-59min；
E, by Jing double tempering process after foundry goods be put into well formula gas heating furnace, Quench heating process is carried out to foundry goods,
Quenching and preserving heat temperature is 740 DEG C ± 10 DEG C, and temperature retention time is 1.2-1.5h；Tank water is quickly put into after the completion of foundry goods Quench heating
Cold 15-25 minutes, cooling bath water temperature is controlled at 25-50 DEG C；
(x) the foundry goods after heat treatment is covered into china protective layer, concrete technology is：
A, dispensing：The mass percent composition of each composition is in china protective layer：Quartz:3.13-3.32%, feldspar: 3.53-
3.45%th, bone black：5.21-5.36%, talcum powder：4.11-4.23%, aluminium powder：3.15-3.33%, silica flour：3.46-3.58%, oxidation
Calcium：1.23-1.35%, magnesia：2.41-2.56%, balance of kaolin；
B, crushing:Each raw material of china protective layer is added by mass percentage and carry out in ball mill mixing and ball milling, add water shape
Into glaze slip；
C, sieve except iron：Above-mentioned glaze slip is filtered with the screen cloth of 150 mesh, iron is removed with tramp iron separator after filtration；
Operation is stirred in d, filter：Water unnecessary in glaze slip in previous step is filtered off, the moisture content of glaze slip is in 29-36% after filter
E, coating：The glaze slip for modulating is coated in the outer surface of the foundry goods after Vehicle Processing, thickness is 0.65-1.05mm；
F, roasting：The foundry goods for having coated glaze slip is sent into tunnel cave roasting, china protective layer is formed after cooling, impeller is obtained, then
Impeller and water pump cover, rotating shaft and cover plate are carried out assembling final high-speed gear box cooling water pump is obtained.
The improvement of above-mentioned technical proposal is：The mass percent of each composition is in high-speed gear box cooling water pump：C：
0.02%, Al:1.17%,Zn:1.25%,Mn：0.38%, S：≤ 0.030%, P：≤ 0.030%, Cr：0.03%, Ni：0.89%, Cu：
0.26%, V：0.03%, Mo：0.07%, Ti：1.37%, B：0.01%, Pd：0.03%,Pt：0.34%,W：0.27%,Nd：0.15%,
Ce：0.11%,Eu：0.08%,Lu:0.04%, Au：0.35%, Ag:0.88%, Ga：0.01%, Y：0.22%, Sn：1.36%, Zr：
0.03%, Re：0.02%, Bi：0.06%；
Magnesia：0.34%, cupric oxide：0.09%, iron oxide：0.15%, manganese dioxide：0.07%, Kocide SD：
0.06%, iron hydroxide：0.04%, balance of Fe.
The improvement of above-mentioned technical proposal is：The mass percent of each composition is in high-speed gear box cooling water pump：C：
0.03%, Al:1.77%,Zn:1.29%,Mn：0.48%, S：≤ 0.030%, P：≤ 0.030%, Cr：0.04%, Ni：1.14%, Cu：
0.26%, V：0.04%, Mo：0.08%, Ti：1.39%, B：0.02%, Pd：0.04%,Pt：0.49%,W：0.29%,Nd：0.15%,
Ce：0.12%,Eu：0.09%,Lu:0.06%, Au：0.37%, Ag:0.96%, Ga：0.02%, Y：0.25%, Sn：1.38%, Zr：
0.04%, Re：0.02%, Bi：0.06%；
Magnesia：0.35%, cupric oxide：0.09%, iron oxide：0.16%, manganese dioxide：0.07%, Kocide SD：
0.06%, iron hydroxide：0.05%, balance of Fe.
The present invention is using the beneficial effect of above-mentioned technical proposal：
1. the high-speed gear box cooling water pump of the present invention strengthens the heat-resisting of cooling water pump due to containing Zn, Ni and W in raw material
And decay resistance；
2. the high-speed gear box cooling water pump of the present invention in raw material due to, containing Ti, Al and rare earth element, alleviating cooling water
The quality of pump, increased structural strength and decay resistance；
3. the high-speed gear box of present invention cooling water pump is due to having carried out secondary smelting in raw material melting then anti-by nodularization
The cooperation that should, skim with slag hitting so that raw material melting is more thorough, can effectively remove the impurity in raw material, improve foundry goods matter
Amount；
4. the high-speed gear box cooling water pump of the present invention due to being using steam dewaxing, the pressure of steam in dewaxing
0.8MPa, the time is 25-45 minutes, and dewaxing is efficiently thoroughly；
5. the high-speed gear box cooling water pump of the present invention is due in pouring operation, with 400-420 degree Celsius of hot blast of constant temperature
Machine carries out baking 1 hour to shell mould, effectively prevents the shell mould in cast from cracking occurring and crushes by the preheating to shell mould；
6. the high-speed gear box cooling water pump of the present invention is to the foundry goods after moulding by casting due to machining, to the thin of impeller
Section position is by Vehicle Processing accurate dimension, and cylinder iron Vehicle Processing goes out water pump cover, rotating shaft and cover plate so that each of water pump is matched somebody with somebody
Part overall precision is high, convenient for assembly；
7. the high-speed gear box of present invention cooling water pump can control impeller due to the foundry goods after Vehicle Processing being heat-treated
Laterally and longitudinally be recessed the face crack for causing, and impeller table surface layer can be made to produce the residual stress contrary with working stress, receives
Part working stress can be offset during load, increases service life；
8. the high-speed gear box cooling water pump of the present invention is because, by double tempering, tempering for the first time can be turned round during heat treatment
Austenite is formed on lath circle or lath beam circle, and alloying element is further enriched with insulating process to improve stability；
Ferrite lath beam is then replied in insulating process, while the harmful element in ferrite is also discharged to rotary austenite
In, so as to improve substrate performance；Second tempering can make rotary austenite enrichment enough on the premise of proof strength
Alloying element, make few net carbide, be more uniformly distributed tissue, can holding structure stablize, further enhance contact fatigue
Intensity and impact flexibility；
9. the high-speed gear box cooling water pump of the present invention by the foundry goods after heat treatment due to covering china protective layer so that impeller
Appearance forms one layer of china protective layer, further increases the heat-resisting and decay resistance of automobile engine to exhaust Taper Pipe, and
So that the characteristics of impeller has structural strength height and good insulating.
Specific embodiment
Embodiment 1
The production technology of the high-speed gear box cooling water pump of the present embodiment, the matter of each composition in high-speed gear box cooling water pump
Measuring percentage is：C：0.02%, Al:1.17%,Zn:1.25%,Mn：0.38%, S：≤ 0.030%, P：≤ 0.030%, Cr：0.03%,
Ni：0.89%, Cu：0.26%, V：0.03%, Mo：0.07%, Ti：1.37%, B：0.01%, Pd：0.03%,Pt：0.34%,W：
0.27%,Nd：0.15%,Ce：0.11%,Eu：0.08%,Lu:0.04%, Au：0.35%, Ag:0.88%, Ga：0.01%, Y：0.22%,
Sn：1.36%, Zr：0.03%, Re：0.02%, Bi：0.06%, magnesia：0.34%, cupric oxide：0.09%, iron oxide：
0.15%, manganese dioxide：0.07%, Kocide SD：0.06%, iron hydroxide：0.04%, balance of Fe；
The production technology of high-speed gear box cooling water pump is comprised the following steps：
(i) melting raw material：
A, add raw materials into smelting furnace by the mass percent of each composition in predetermined high-speed gear box cooling water pump, by smelting furnace
Interior temperature brings up to 1520 degrees Celsius to 1540 degrees Celsius, and raw material is smelted to form alloy solution；
B, alloy solution obtained in the previous step is cooled down, water-cooled is combined with air cooling during cooling, first adopts water-cooled with 15-18
DEG C/alloy solution water-cooled to 450-460 DEG C of formation alloy, is then air cooled to 340-350 DEG C by the cooldown rate of s, then using water
The cold cooldown rate with 18-20 DEG C/s is by alloy water-cooled to room temperature；
C, heating, the alloy after previous step is cooled down carries out secondary smelting in smelting furnace, and the temperature in smelting furnace is brought up into 1580
Degree Celsius to 1610 degrees Celsius, alloy forms alloy solution by secondary smelting；
D, pour the alloy solution in smelting furnace into electric furnace, in the bag hole of casting ladle nodulizer and inovulant are sequentially added, use thin steel
Plate is covered on nodulizer, inovulant, and is consolidated, and steel-sheet thickness is 0.5mm to 1mm；
E, the opposite side that the alloy solution in electric furnace is poured into casting ladle indent, spheroidizing reacion 70s to 85s, after spheroidizing reacion is abundant,
The slag agent of one layer of collection is spread, is quickly skimmed；
F, quickly skim after, be sprinkled into swelling perlite powder on alloy solution surface immediately, twice of slag hitting after the completion of slag hitting, is formed
Alloy solution to be cast, was poured in five minutes；
(ii) prepared by wax-pattern：Using mechanical casting, make consistent with the impeller size of high-speed gear box cooling water pump and include
The wax-pattern of insulated feeder, and wax-pattern is repaired, afterwards wax-pattern is cleaned using wax base cleaning agent；
(iii) shell model sand mold is made in step (ii) obtained wax-pattern；
(iv) dewax：Using steam dewaxing, the pressure of steam is 0.8MPa, and the time is 25-45 minutes, and shell mould is obtained；
(v) shell mould roasting；
During (vi) the (v) roasting shell mould of step to be 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, is then placed in the mixed sand through preparing, and pile after mixed sand is carried out again with foundry jolter
Ram-jolt, forms sand mold；
(vii) pour into a mould
Pouring into a mould the air-heater of front 400-420 degree Celsius of constant temperature carries out baking 1 hour to shell mould, and during cast, pouring temperature is
1550-1650 degree Celsius, after cast, foundry goods is incubated 2-3 hours in sand mold；After moulding by casting, the demoulding is carried out, crushes shell mould,
The insulated feeder of excision foundry goods, obtains foundry goods；
(viii) the foundry goods after moulding by casting is machined, and cylinder iron Vehicle Processing goes out water pump cover, rotating shaft and cover plate；
(ix) the foundry goods after Vehicle Processing is heat-treated, concrete technology is：
A, heating：Foundry goods is heated into 640-665 DEG C, and is incubated 45-55min；
B, cooling：After adopting the air-cooled cooldown rate with 15-18 DEG C/s to accelerate to be cooled to 410-420 DEG C by foundry goods, then it is air cooled to
Room temperature；
C, once it is tempered：Foundry goods is heated to after 560-575 DEG C of tempering 41-43min, warm 30-45s is treated, automobile gearbox tooth is made
Wheel equalizing temperature, after accelerating to be cooled to 355-365 DEG C with the cooldown rate of 28-35 DEG C/s afterwards, then is air cooled to room temperature；
D, double tempering：Automobile gearbox gear is heated to be air cooled to room temperature after 614-618 DEG C of tempering 53-59min；
E, by Jing double tempering process after foundry goods be put into well formula gas heating furnace, Quench heating process is carried out to foundry goods,
Quenching and preserving heat temperature is 740 DEG C ± 10 DEG C, and temperature retention time is 1.2-1.5h；Tank water is quickly put into after the completion of foundry goods Quench heating
Cold 15-25 minutes, cooling bath water temperature is controlled at 25-50 DEG C；
(x) the foundry goods after heat treatment is covered into china protective layer, concrete technology is：
A, dispensing：The mass percent composition of each composition is in china protective layer：Quartz:3.13-3.32%, feldspar: 3.53-
3.45%th, bone black：5.21-5.36%, talcum powder：4.11-4.23%, aluminium powder：3.15-3.33%, silica flour：3.46-3.58%, oxidation
Calcium：1.23-1.35%, magnesia：2.41-2.56%, balance of kaolin；
B, crushing:Each raw material of china protective layer is added by mass percentage and carry out in ball mill mixing and ball milling, add water shape
Into glaze slip；
C, sieve except iron：Above-mentioned glaze slip is filtered with the screen cloth of 150 mesh, iron is removed with tramp iron separator after filtration；
Operation is stirred in d, filter：Water unnecessary in glaze slip in previous step is filtered off, the moisture content of glaze slip is in 29-36% after filter
E, coating：The glaze slip for modulating is coated in the outer surface of the foundry goods after Vehicle Processing, thickness is 0.65-1.05mm；
F, roasting：The foundry goods for having coated glaze slip is sent into tunnel cave roasting, china protective layer is formed after cooling, impeller is obtained, then
Impeller and water pump cover, rotating shaft and cover plate are carried out assembling final high-speed gear box cooling water pump is obtained.
Embodiment 2
The production technology of the high-speed gear box cooling water pump of the present embodiment, difference is high-speed gear box cooling water
The mass percent of each composition is in pump：C：0.03%, Al:1.77%,Zn:1.29%,Mn：0.48%, S：≤ 0.030%, P：≤
0.030%, Cr：0.04%, Ni：1.14%, Cu：0.26%, V：0.04%, Mo：0.08%, Ti：1.39%, B：0.02%, Pd：0.04%,
Pt：0.49%,W：0.29%,Nd：0.15%,Ce：0.12%,Eu：0.09%,Lu:0.06%, Au：0.37%, Ag:0.96%, Ga：
0.02%, Y：0.25%, Sn：1.38%, Zr：0.04%, Re：0.02%, Bi：0.06%,
Magnesia：0.35%, cupric oxide：0.09%, iron oxide：0.16%, manganese dioxide：0.07%, Kocide SD：
0.06%, iron hydroxide：0.05%, balance of Fe；
The production technology of high-speed gear box cooling water pump is comprised the following steps：
(i) melting raw material：
A, add raw materials into smelting furnace by the mass percent of each composition in predetermined high-speed gear box cooling water pump, by smelting furnace
Interior temperature brings up to 1520 degrees Celsius to 1540 degrees Celsius, and raw material is smelted to form alloy solution；
B, alloy solution obtained in the previous step is cooled down, water-cooled is combined with air cooling during cooling, first adopts water-cooled with 15-18
DEG C/alloy solution water-cooled to 450-460 DEG C of formation alloy, is then air cooled to 340-350 DEG C by the cooldown rate of s, then using water
The cold cooldown rate with 18-20 DEG C/s is by alloy water-cooled to room temperature；
C, heating, the alloy after previous step is cooled down carries out secondary smelting in smelting furnace, and the temperature in smelting furnace is brought up into 1580
Degree Celsius to 1610 degrees Celsius, alloy forms alloy solution by secondary smelting；
D, pour the alloy solution in smelting furnace into electric furnace, in the bag hole of casting ladle nodulizer and inovulant are sequentially added, use thin steel
Plate is covered on nodulizer, inovulant, and is consolidated, and steel-sheet thickness is 0.5mm to 1mm；
E, the opposite side that the alloy solution in electric furnace is poured into casting ladle indent, spheroidizing reacion 70s to 85s, after spheroidizing reacion is abundant,
The slag agent of one layer of collection is spread, is quickly skimmed；
F, quickly skim after, be sprinkled into swelling perlite powder on alloy solution surface immediately, twice of slag hitting after the completion of slag hitting, is formed
Alloy solution to be cast, was poured in five minutes；
(ii) prepared by wax-pattern：Using mechanical casting, make consistent with the impeller size of high-speed gear box cooling water pump and include
The wax-pattern of insulated feeder, and wax-pattern is repaired, afterwards wax-pattern is cleaned using wax base cleaning agent；
(iii) shell model sand mold is made in step (ii) obtained wax-pattern；
(iv) dewax：Using steam dewaxing, the pressure of steam is 0.8MPa, and the time is 25-45 minutes, and shell mould is obtained；
(v) shell mould roasting；
During (vi) the (v) roasting shell mould of step to be 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, is then placed in the mixed sand through preparing, and pile after mixed sand is carried out again with foundry jolter
Ram-jolt, forms sand mold；
(vii) pour into a mould
Pouring into a mould the air-heater of front 400-420 degree Celsius of constant temperature carries out baking 1 hour to shell mould, and during cast, pouring temperature is
1550-1650 degree Celsius, after cast, foundry goods is incubated 2-3 hours in sand mold；After moulding by casting, the demoulding is carried out, crushes shell mould,
The insulated feeder of excision foundry goods, obtains foundry goods；
(viii) the foundry goods after moulding by casting is machined, and cylinder iron Vehicle Processing goes out water pump cover, rotating shaft and cover plate；
(ix) the foundry goods after Vehicle Processing is heat-treated, concrete technology is：
A, heating：Foundry goods is heated into 640-665 DEG C, and is incubated 45-55min；
B, cooling：After adopting the air-cooled cooldown rate with 15-18 DEG C/s to accelerate to be cooled to 410-420 DEG C by foundry goods, then it is air cooled to
Room temperature；
C, once it is tempered：Foundry goods is heated to after 560-575 DEG C of tempering 41-43min, warm 30-45s is treated, automobile gearbox tooth is made
Wheel equalizing temperature, after accelerating to be cooled to 355-365 DEG C with the cooldown rate of 28-35 DEG C/s afterwards, then is air cooled to room temperature；
D, double tempering：Automobile gearbox gear is heated to be air cooled to room temperature after 614-618 DEG C of tempering 53-59min；
E, by Jing double tempering process after foundry goods be put into well formula gas heating furnace, Quench heating process is carried out to foundry goods,
Quenching and preserving heat temperature is 740 DEG C ± 10 DEG C, and temperature retention time is 1.2-1.5h；Tank water is quickly put into after the completion of foundry goods Quench heating
Cold 15-25 minutes, cooling bath water temperature is controlled at 25-50 DEG C；
(x) the foundry goods after heat treatment is covered into china protective layer, concrete technology is：
A, dispensing：The mass percent composition of each composition is in china protective layer：Quartz:3.13-3.32%, feldspar: 3.53-
3.45%th, bone black：5.21-5.36%, talcum powder：4.11-4.23%, aluminium powder：3.15-3.33%, silica flour：3.46-3.58%, oxidation
Calcium：1.23-1.35%, magnesia：2.41-2.56%, balance of kaolin；
B, crushing:Each raw material of china protective layer is added by mass percentage and carry out in ball mill mixing and ball milling, add water shape
Into glaze slip；
C, sieve except iron：Above-mentioned glaze slip is filtered with the screen cloth of 150 mesh, iron is removed with tramp iron separator after filtration；
Operation is stirred in d, filter：Water unnecessary in glaze slip in previous step is filtered off, the moisture content of glaze slip is in 29-36% after filter
E, coating：The glaze slip for modulating is coated in the outer surface of the foundry goods after Vehicle Processing, thickness is 0.65-1.05mm；
F, roasting：The foundry goods for having coated glaze slip is sent into tunnel cave roasting, china protective layer is formed after cooling, impeller is obtained, then
Impeller and water pump cover, rotating shaft and cover plate are carried out assembling final high-speed gear box cooling water pump is obtained.
The present invention is not limited to above-described embodiment.The technical scheme that all employing equivalents are formed, all falling within the present invention will
The protection domain asked.
Claims (3)
1. a kind of production technology of high-speed gear box cooling water pump, it is characterised in that：The high-speed gear box cooling water pump
In the mass percent of each composition be：C：0.02-0.03%, Al:1.16-1.83%,Zn:1.22-1.39%,Mn：0.37-
0.58%, S：≤ 0.030%, P：≤ 0.030%, Cr：0.02-0.04%, Ni：0.84-1.19%, Cu：0.25-0.29%, V：0.02-
0.05%, Mo：0.06-0.09%, Ti：1.33-1.59%, B：0.01-0.02%, Pd：0.02-0.04%,Pt：0.33-0.49%,
W：0.23-0.36%,Nd：0.13-0.16%,Ce：0.11-0.12%,Eu：0.07-0.15%,Lu:0.03-0.07%, Au：
0.33-0.42%, Ag:0.86-1.04%, Ga：0.01-0.02%, Y：0.21-0.27%, Sn：1.34-1.58%, Zr：0.02-
0.07%, Re：0.01-0.03%, Bi：0.05-0.09%, magnesia：0.33-0.37%, cupric oxide：0.08-0.13%, oxidation
Iron：0.12-0.18%, manganese dioxide：0.06-0.09%, Kocide SD：0.05-0.08%, iron hydroxide：0.03-
0.05%, balance of Fe；
The production technology of the high-speed gear box cooling water pump is comprised the following steps：
(i) melting raw material：
A, add raw materials into smelting furnace by the mass percent of each composition in predetermined high-speed gear box cooling water pump, by smelting furnace
Interior temperature brings up to 1520 degrees Celsius to 1540 degrees Celsius, and raw material is smelted to form alloy solution；
B, alloy solution obtained in the previous step is cooled down, water-cooled is combined with air cooling during cooling, first adopts water-cooled with 15-18
DEG C/alloy solution water-cooled to 450-460 DEG C of formation alloy, is then air cooled to 340-350 DEG C by the cooldown rate of s, then using water
The cold cooldown rate with 18-20 DEG C/s is by alloy water-cooled to room temperature；
C, heating, the alloy after previous step is cooled down carries out secondary smelting in smelting furnace, and the temperature in smelting furnace is brought up into 1580
Degree Celsius to 1610 degrees Celsius, alloy forms alloy solution by secondary smelting；
D, pour the alloy solution in smelting furnace into electric furnace, in the bag hole of casting ladle nodulizer and inovulant are sequentially added, use thin steel
Plate is covered on nodulizer, inovulant, and is consolidated, and steel-sheet thickness is 0.5mm to 1mm；
E, the opposite side that the alloy solution in electric furnace is poured into casting ladle indent, spheroidizing reacion 70s to 85s, after spheroidizing reacion is abundant,
The slag agent of one layer of collection is spread, is quickly skimmed；
F, quickly skim after, be sprinkled into swelling perlite powder on alloy solution surface immediately, twice of slag hitting after the completion of slag hitting, is formed
Alloy solution to be cast, was poured in five minutes；
(ii) prepared by wax-pattern：Using mechanical casting, make consistent with the impeller size of high-speed gear box cooling water pump and include
The wax-pattern of insulated feeder, and wax-pattern is repaired, afterwards wax-pattern is cleaned using wax base cleaning agent；
(iii) shell model sand mold is made in step (ii) obtained wax-pattern；
(iv) dewax：Using steam dewaxing, the pressure of steam is 0.8MPa, and the time is 25-45 minutes, and shell mould is obtained；
(v) shell mould roasting；
During (vi) the (v) roasting shell mould of step to be 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, is then placed in the mixed sand through preparing, and pile after mixed sand is carried out again with foundry jolter
Ram-jolt, forms sand mold；
(vii) pour into a mould
Pouring into a mould the air-heater of front 400-420 degree Celsius of constant temperature carries out baking 1 hour to shell mould, and during cast, pouring temperature is
1550-1650 degree Celsius, after cast, foundry goods is incubated 2-3 hours in sand mold；After moulding by casting, the demoulding is carried out, crushes shell mould,
The insulated feeder of excision foundry goods, obtains foundry goods；
(viii) the foundry goods after moulding by casting is machined, and cylinder iron Vehicle Processing goes out water pump cover, rotating shaft and cover plate；
(ix) the foundry goods after Vehicle Processing is heat-treated, concrete technology is：
A, heating：Foundry goods is heated into 640-665 DEG C, and is incubated 45-55min；
B, cooling：After adopting the air-cooled cooldown rate with 15-18 DEG C/s to accelerate to be cooled to 410-420 DEG C by foundry goods, then it is air cooled to
Room temperature；
C, once it is tempered：Foundry goods is heated to after 560-575 DEG C of tempering 41-43min, warm 30-45s is treated, automobile gearbox tooth is made
Wheel equalizing temperature, after accelerating to be cooled to 355-365 DEG C with the cooldown rate of 28-35 DEG C/s afterwards, then is air cooled to room temperature；
D, double tempering：Automobile gearbox gear is heated to be air cooled to room temperature after 614-618 DEG C of tempering 53-59min；
E, by Jing double tempering process after foundry goods be put into well formula gas heating furnace, Quench heating process is carried out to foundry goods,
Quenching and preserving heat temperature is 740 DEG C ± 10 DEG C, and temperature retention time is 1.2-1.5h；Tank water is quickly put into after the completion of foundry goods Quench heating
Cold 15-25 minutes, cooling bath water temperature is controlled at 25-50 DEG C；
(x) the foundry goods after heat treatment is covered into china protective layer, concrete technology is：
A, dispensing：The mass percent composition of each composition is in china protective layer：Quartz:3.13-3.32%, feldspar: 3.53-
3.45%th, bone black：5.21-5.36%, talcum powder：4.11-4.23%, aluminium powder：3.15-3.33%, silica flour：3.46-3.58%, oxidation
Calcium：1.23-1.35%, magnesia：2.41-2.56%, balance of kaolin；
B, crushing:Each raw material of china protective layer is added by mass percentage and carry out in ball mill mixing and ball milling, add water shape
Into glaze slip；
C, sieve except iron：Above-mentioned glaze slip is filtered with the screen cloth of 150 mesh, iron is removed with tramp iron separator after filtration；
Operation is stirred in d, filter：Water unnecessary in glaze slip in previous step is filtered off, the moisture content of glaze slip is in 29-36% after filter
E, coating：The glaze slip for modulating is coated in the outer surface of the foundry goods after Vehicle Processing, thickness is 0.65-1.05mm；
F, roasting：The foundry goods for having coated glaze slip is sent into tunnel cave roasting, china protective layer is formed after cooling, impeller is obtained, then
Impeller and water pump cover, rotating shaft and cover plate are carried out assembling final high-speed gear box cooling water pump is obtained.
2. the production technology of high-speed gear box cooling water pump according to claim 1, it is characterised in that：The high speed tooth
The mass percent of each composition is in roller box cooling water pump：C：0.02%, Al:1.17%,Zn:1.25%,Mn：0.38%, S：≤
0.030%, P：≤ 0.030%, Cr：0.03%, Ni：0.89%, Cu：0.26%, V：0.03%, Mo：0.07%, Ti：1.37%, B：
0.01%, Pd：0.03%,Pt：0.34%,W：0.27%,Nd：0.15%,Ce：0.11%,Eu：0.08%,Lu:0.04%, Au：0.35%,
Ag:0.88%, Ga：0.01%, Y：0.22%, Sn：1.36%, Zr：0.03%, Re：0.02%, Bi：0.06%,
Magnesia：0.34%, cupric oxide：0.09%, iron oxide：0.15%, manganese dioxide：0.07%, Kocide SD：
0.06%, iron hydroxide：0.04%, balance of Fe.
3. the production technology of high-speed gear box cooling water pump according to claim 1, it is characterised in that：The high speed tooth
The mass percent of each composition is in roller box cooling water pump：C：0.03%, Al:1.77%,Zn:1.29%,Mn：0.48%, S：≤
0.030%, P：≤ 0.030%, Cr：0.04%, Ni：1.14%, Cu：0.26%, V：0.04%, Mo：0.08%, Ti：1.39%, B：
0.02%, Pd：0.04%,Pt：0.49%,W：0.29%,Nd：0.15%,Ce：0.12%,Eu：0.09%,Lu:0.06%, Au：0.37%,
Ag:0.96%, Ga：0.02%, Y：0.25%, Sn：1.38%, Zr：0.04%, Re：0.02%, Bi：0.06%,
Magnesia：0.35%, cupric oxide：0.09%, iron oxide：0.16%, manganese dioxide：0.07%, Kocide SD：
0.06%, iron hydroxide：0.05%, balance of Fe.
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| CN107916360A (en) * | 2017-11-14 | 2018-04-17 | 郑媛媛 | A kind of production technology of high-strength abrasion-proof safety valve |
| CN108728753A (en) * | 2018-05-30 | 2018-11-02 | 无锡市诚天诺执行器制造有限公司 | A kind of pneumatic actuator output shaft material and preparation method thereof |
| CN108988239A (en) * | 2018-06-08 | 2018-12-11 | 荣马电器有限公司 | A kind of cable for rail transit slot box and its processing technology |
| WO2022218469A1 (en) * | 2021-04-12 | 2022-10-20 | Schaeffler Technologies AG & Co. KG | Method for producing a harmonic drive component, drive component, and harmonic drive |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107815596A (en) * | 2017-11-14 | 2018-03-20 | 郑媛媛 | A kind of processing technology of valve high intensity handle |
| CN107916360A (en) * | 2017-11-14 | 2018-04-17 | 郑媛媛 | A kind of production technology of high-strength abrasion-proof safety valve |
| CN108728753A (en) * | 2018-05-30 | 2018-11-02 | 无锡市诚天诺执行器制造有限公司 | A kind of pneumatic actuator output shaft material and preparation method thereof |
| CN108988239A (en) * | 2018-06-08 | 2018-12-11 | 荣马电器有限公司 | A kind of cable for rail transit slot box and its processing technology |
| WO2022218469A1 (en) * | 2021-04-12 | 2022-10-20 | Schaeffler Technologies AG & Co. KG | Method for producing a harmonic drive component, drive component, and harmonic drive |
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| CN106636927B (en) | 2018-04-13 |
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