CN1861313A - Art for mfg. Austempered Ductile iron gear for diesel engine - Google Patents
Art for mfg. Austempered Ductile iron gear for diesel engine Download PDFInfo
- Publication number
- CN1861313A CN1861313A CN 200610038844 CN200610038844A CN1861313A CN 1861313 A CN1861313 A CN 1861313A CN 200610038844 CN200610038844 CN 200610038844 CN 200610038844 A CN200610038844 A CN 200610038844A CN 1861313 A CN1861313 A CN 1861313A
- Authority
- CN
- China
- Prior art keywords
- gear
- iron
- shellfish
- weight
- sand
- 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.)
- Granted
Links
Images
Landscapes
- Heat Treatment Of Articles (AREA)
- Gears, Cams (AREA)
Abstract
A technology for manufacturing the gear with modular 'austenite plus residual bainite' iron and used for the diesel engine includes such steps as making iron mould, making sand mould, smelting in electric furnace, nodulizing, pouring, annealing, ultrasonic inspection, primary machining, semi-fine machining, hobbing gear, iso-quenching, blasting pills, fine machining, grinding teeth, marking, washing, and applying antirust oil. It has high mechanical performance and strength.
Description
Technical field
The present invention relates to a kind of manufacturing process that is used for the ADI Gear on the diesel engine, specifically shellfish difficult to understand (the going up shellfish) magnesium iron of upper bainite+retained austenite is made gear, and is applied to belong to the mechanical part technical field on the high-power diesel engine for automobile.
Background technology
The austempered ductile iron material is a kind of new material that grows up the seventies in 20th century, and it is that isothermal hardening heat treatment by ductile iron material obtains.According to the difference of heat treatment austempering temperature, it can be divided into martensite+lower bainite (horse shellfish) again substantially, lower bainite+retained austenite (following shellfish), three types of upper bainite+retained austenites (going up shellfish).The U.S. lays particular emphasis on the development of horse shellfish, and European countries such as Finland lay particular emphasis on the development of shellfish, and China lays particular emphasis on down the development of shellfish.Austempered ductile iron material invention three during the last ten years, domestic should be many to its basic research of carrying out, but because of multiple reason, production application few; Be exactly application, more also is to produce some simple shape, and the product that performance and dimensional requirement are not too high is as wear-resistant (the following shellfishes) such as wedges used on abrading-ball, liner plate, tup, digger bucket tooth, the railway.Demanding less, Ao Bei (following shellfish) ductile iron camshaft that our factory researched and developed and be applied to medium and small power diesel engine the seventies in last century is that China's austempered ductile iron material is used successful unit, Second Automobile Works nineties in last century is according to american commings B engine Ao Bei (horse shellfish) ductile iron gear that required research and development and production application, but, now stop using because of multiple reason.Gear, especially the diesel engine gear is an a stressed complexity (existing alternating bending fatigue load, periodic shock load is arranged again, also to stand fretting wear etc.), the part that comprehensive mechanical performance and reliability requirement are higher, so the gear, particularly diesel engine gear of domestic production at present substantially all are nitrated steel gear or 20CrMnTi carburizing and quenching steel gear.ADI Gear is compared its main feature with steel gear be significantly to reduce grating of gears, alleviate gear weight (about 10%) etc., but the technical difficult points that the ADI Gear production application exists is: 1, how to guarantee to obtain high-quality ductile iron gear foundry goods.Promptly guarantee to obtain the desired chemical composition of superior performance after the heat treatment of quenching such as ductile iron gear shellfish difficult to understand, as-cast structure, casting flaw such as pore, shrinkage porosite especially can not be arranged, be mingled with, and that gear is a structure is complicated, is difficult for the part of casting; 2, the good mechanical property of ADI Gear obtains by heat treatments of quenching such as shellfishes difficult to understand, how to guarantee the stable superior performance that obtain of the heat treatment production of quenching such as shellfish difficult to understand, and the ADI Gear of uniformity is difficult, existing technologic, (domestic still do not have regular isothermal hardening Equipment for Heating Processing) on the equipment also arranged; 3, owing to austempered ductile iron materials processing relatively poor (than quenched and tempered steel difference), so the processing of ADI Gear also is a difficult problem.
Summary of the invention
The objective of the invention is to overcome above-mentioned weak point, can reduce grating of gears, alleviate gear weight thereby provide a kind of; Has good comprehensive mechanical properties, good wearability, the manufacturing process that is used for Ao Bei (the going up shellfish) ductile iron gear on the diesel engine of higher contact fatigue strength and bending fatigue strength.
Main solution of the present invention is achieved in that
The present invention shellfish difficult to understand (going up shellfish) ductile iron gear manufacturing technology steps is as follows:
1, swage manufacturing: gear adopts the device for sand coated iron mould casting, at first makes spray figure according to the monolateral surplus that adds of gear product figure, and monolateral adding covered layer of sand manufacturing swage on the basis of spray figure;
2, moulding: on hot core core shooter, make the device for sand coated iron mould sand mold, adopt electrothermal tube swage to be heated heating-up temperature: 220-240 ℃, be blown into precoated sand then, form the device for sand coated iron mould sand mold, precoated sand adopts sand in coating phenolic resin;
3, melting: with electric furnace smelting iron water, melting molten iron composition of raw materials is: the pig iron is: 50-70 weight %, foundry return are: 20-40 weight %, steel scrap are: 10-20 weight %, and cast iron melting is come out of the stove to 1480-1520 ℃; Spheroidising is put into nodulizer and coverture earlier in casting ladle, carry out spheroidising with the method that pours in casting ladle; Put into inovulant in the molten iron after spheroidising and carry out inoculation; Treatment formulations is a molten iron: 97.2～98.4 weight %, rare earth ferrosilicomagnesium nodulizer: 1～1.6 weight %, 75 ferrosilicon covertures: 0.3～0.7 weight %, 75 ferrosilicon inovulants: 0.3～0.5 weight %;
4, cast: the molten iron temperature after spheroidising and the inoculation should be controlled at: 1380-1450 ℃, molten iron is poured in the device for sand coated iron mould sand mold of above-mentioned mould assembling, cast should have been watered in 8 minutes, unpack after treating molten steel solidification and being cooled to 500-600 ℃, the cleaning swage, knock out casting fin, remove the cast gate undesirable root with abrasive machine;
5, annealing: annealing is carried out in cabinet-type electric furnace, and temperature is: 880-920 ℃, cool to the furnace below 600 ℃ after temperature retention time: 2-4 hour and come out of the stove;
6, ultrasound examination: earlier the gear both ends of the surface are carried out turning processing, make the both ends of the surface roughness reach 6.3 grades, and make two plane keeping parallelisms, the calibration supersonic reflectoscope carries out total part flaw detection, to guarantee pore-free, shrinkage porosite in the gear foundry goods;
7, roughing: rough turn tooth base, i.e. car endoporus, turning, skiving wheel spoke and gear beam overall etc.;
8, semifinishing: folder top circle, half finish turning end face, spoke, boring endoporus, aperture chamfering; Back strut endoporus, reliable end standard face skiving wheel cylindrical, half finish turning gear other end and spoke;
9, gear hobbing: first gear hobbing, chamfered edge, groove milling;
10, the heat treatment of quenching such as: use the gasoline cleaning components, remove greasy dirt on the part, in well formula protective atmosphere electric furnace, heat austenitizing, isothermal hardening in the nitrate furnace, the heating austenitizing temperature is: 880-920 ℃, be incubated 1-2 hour, austempering temperature is: 350-390 ℃, be incubated 1-2 hour, residual salt is cleaned with clear water in the back of quenching, and carries out mechanical property and metallographic structure inspection, mechanical property reaches: tensile strength sigma b 〉=1000Mpa, percentage elongation δ 〉=7%, metallographic structure should be: upper bainite+10-40% retained austenite, hardness: 26-35HRC;
11 bead: the reusable heat buck carries out neutralisation treatment after the gear heat treatment, and thermokalite aqueous solution acid-base value is: PH11-13, temperature: 100 ℃, carry out bead on compressed air shotblasting machine;
12, fine finishining: pitch diameter location mill endoporus, mill datum end face; The depth of parallelism by datum end face, finish turning or mill other end, assurance gear two planes; Draw keyway.This moment, the processing (car, mill, bore, draw keyway and shaving etc.) of gear should be adopted low speed, roughing feed amount (cutting depth should greater than the work hardening layer depth) processing, and cutter adopts as far as possible coating cutters such as TiN, TiAlN.
13, roll flute: shaving or roll flute;
14, check: mark knowledge, product inspection, cleaning, last antirust oil, packing warehouse-in.
Compared with the prior art the present invention has the following advantages:
The present invention has been owing to determined the chemical composition and the casting technique of gear foundry goods to guarantee that foundry goods has good nodularization rate by test, no shrinkage porosite, casting flaw such as is mingled with, and foundry goods is through being annealed into the ferrite attitude; The key that guarantees shellfish difficult to understand (go up shellfish) ductile iron gear performance is to wait the heat treatment of quenching, so we are by testing the grade of the having determined ductile iron gear Technology for Heating Processing of quenching, thereby obtains qualified metallographic structure and assurance reaches mechanical performance index; The processing characteristics of austempered ductile iron is than quenched and tempered steel difference, so we have determined the reasonable process technology route of ductile iron gear by test, and by adopting the coating cutter, reduce cutting speed etc., preferably resolves the ADI Gear problem of difficult processing; By test, successfully be implemented in≤batch production application on 280 horsepowers of diesels engine for automobile.The present invention shellfish difficult to understand (going up shellfish) ductile iron gear is compared with steel gear and can significantly be reduced grating of gears, alleviates gear weight about 10%; Austempered ductile iron (going up shellfish) gear has good comprehensive mechanical properties, is higher than the quenched and tempered state pinion steel; Good wearability is higher than the nitrated steel gear; Higher contact fatigue strength (being higher than the nitrated steel gear) and bending fatigue strength near 20CrMnTi carburizing steel gear.
Description of drawings
Fig. 1 is the process chart of the present invention shellfish difficult to understand (going up shellfish) ductile iron gear.
Fig. 2 is the outline drawing of the present invention shellfish difficult to understand (going up shellfish) ductile iron gear.
The specific embodiment
Embodiment during following the present invention incites somebody to action in conjunction with the accompanying drawings is further described:
Embodiment one:
1005037AB-6DF1 shellfish difficult to understand (going up shellfish) spherulitic iron crankshaft timing gears are shown in Fig. 2 photo in the embodiment of the invention: the main technical requirements of this gear and being of a size of: modulus m
n=3, tooth number Z=42, profile angle α=20 °, bore size φ 104H7 (
0 + 0.035), roughness 1.6, outside circle size φ 132h11 (
-0.25 0), gear is wide by 36 ± 0.1, end face roughness 3.2, effective facewidth 17
0 + 0.5, tooth-face roughness 0.8.
The production craft step of Ao Bei (going up shellfish) spherulitic iron crankshaft timing gears is as follows:
1, swage manufactures and designs: this gear adopts device for sand coated iron mould casting, so at first according to this gear product figure, the monolateral 1.5-3.5mm surplus that adds is made spray figure, the monolateral 5-25mm of adding covers layer of sand and manufactures and designs swage on the basis of blank drawing; The chemical composition of ductile iron gear foundry goods and metallographic structure index: we determine that by the material foundation test shellfish difficult to understand (going up shellfish) ductile iron gear is non-alloy austenitic-bainite (going up a shellfish) ductile iron gear, be not contain Cu in the chemical composition of foundry goods, Ni, alloying elements such as Mo, its chemical composition is 3.6-3.9%C, 2.4-3.0%Si ,≤0.3%Mn, ≤ 0.06%P, ≤ 0.02%S, 0.03-0.05%Mg, 0.01-0.03%RE, C wherein, Si, Mn is an essential element, need strict control, P, S is an impurity element, and is low more good more, Mg, RE is the nodularization element, to guarantee to meet the requirements of the nodularization rate; The metallographic structure of foundry goods is nodularization rate≤3 grade, graphite size 〉=5 grade, ferrite content 〉=85%, carbide≤2%, iron phosphide eutectic≤2%.
2, moulding: on hot core core shooter, make the device for sand coated iron mould sand mold, swage needs to heat with electrothermal tube when beginning to produce, heating-up temperature: 220-240 ℃, as long as utilize the swage waste heat after the ordinary production, be blown into precoated sand then, form the device for sand coated iron mould sand mold, what precoated sand adopted is sand in coating phenolic resin.
3, melting: with electric furnace smelting iron water, melting molten iron composition of raw materials is the pig iron, the 35 weight % foundry returns of 50 weight %, the steel scrap of 15 weight %, and cast iron melting is come out of the stove to 1480-1520 ℃; In casting ladle, carry out spheroidising with the method that pours, in casting ladle molten iron 98.4 weight %, put into the rare earth ferrosilicomagnesium intermediate alloy nodulizer of 1 weight % and the 75 ferrosilicon covertures of 0.3 weight % during spheroidising, put into inovulant subsequently and carry out inoculation, formula of modifying agent is 75 ferrosilicon of 0.3 weight %, and the chemical composition after the processing must meet above-mentioned chemical composition index request.
4, cast: the molten iron temperature after spheroidising and the inoculation should be controlled at 1380-1450 ℃, molten iron is poured in the device for sand coated iron mould sand mold of above-mentioned mould assembling, cast should have been watered in 8 minutes, unpack after treating molten steel solidification and being cooled to 500-600 ℃, the cleaning swage, knock out casting fin, remove the cast gate undesirable root with abrasive machine.
5, annealing: annealing is carried out in the 75kw cabinet-type electric furnace, annealing temperature: 880-920 ℃, insulation: be chilled to below 600 ℃ with stove after 2-3 hour and come out of the stove, the metallographic structure of foundry goods is nodularization rate≤3 grade after the annealing in process, graphite size 〉=6 grade, number of graphite ball 〉=120/mm
2, ferrite content 〉=90%, carbide+iron phosphide eutectic≤3%, all the other are pearlite, the Y test block (mechanical performance of δ=25mm): tensile strength sigma
b〉=400Mpa, percentage elongation δ 〉=15%, hardness 170-200HB.
6, ultrasound examination: earlier the gear both ends of the surface are carried out turning processing, make the both ends of the surface roughness reach 6.3 grades, and make two plane keeping parallelisms, the calibration supersonic reflectoscope, carry out total part flaw detection by " ADI Gear ultrasonic examination operational procedure " requirement, underproofly scrap processing, to guarantee castability problems such as pore-free, shrinkage porosite in the gear foundry goods, the percent defective that the machined backgear causes because of casting flaw≤2%, the foundry goods that is up to the standards is stamped the foundry goods sign, puts in storage to be processed.
7, roughing: by the rough turn tooth base of rough turn figure, the endoporus car is to φ 102 ± 0.2, and the cylindrical car is to φ 133 ± 0.2, gear beam overall car to 37
0 + 0.5, effective facewidth 19
0 + 0.5, roughness 12.5.
8, semifinishing: the folder top circle, the light small end face expands endoporus to φ 104.5
0 + 0.1, dark 7.1, the right boring endoporus is to φ 103.3
0 + 0.03, 1.1 * 45 ° of aperture chamferings guarantee end face run-out less than 0.04, finish turning is answered sub-cylindrical to φ 117
-0.35 0, long 3
0 + 0.1, the finish turning conical surface guarantees that size φ 123, two conical surface angles are 31.4 °, answers 1.2 * 45 ° of sub-chamferings; The back strut endoporus, reliable plane, skiving wheel cylindrical is to φ 132
-0.25 0, the finish turning gear is wide to 36.3
0 + 0.1, guarantee end face run-out less than 0.05, bull nose is 1.2 * 45 °, 1.5 * 45 ° of interior angle of spot holes.
9, gear hobbing: press m=3, z=42, Fr=0.03, Fw=0.025, w=41.86-41.89 carries out gear hobbing, chamfered edge then, groove milling, groove width 5
+ 0.07 + 0.10, dark 6.6
0 + 0.1, and guarantee positioning tooth and keyway center angle be 40 ° ± 15 ', keyway to the symmetry at endoporus center less than 0.025; Heat-treat preceding check by the product rules.
10, the heat treatment of quenching such as: use the gasoline cleaning components; remove greasy dirt on the part; shelve with special fixture; in well formula protective atmosphere electric furnace, heat austenitizing, isothermal hardening in the nitrate furnace, its heat treatment temperature is: 880-920 ℃ of insulation: 1-1.5 hour austenitizing; 370-390 ℃ of insulation: 1-1.5 hour isothermal hardening; quench the back with the clean residual salt of clear water, use with the stove sample and carry out mechanical property and metallographic structure inspection, mechanical property should reach: tensile strength sigma
b〉=1000Mpa, percentage elongation δ 〉=7%, metallographic structure should be: upper bainite+10-40% retained austenite, hardness 26-35HRC.
11, bead: the reusable heat buck carries out neutralisation treatment after the gear heat treatment, guarantees to clean up residual salt, and thermokalite aqueous solution acid-base value is: PH11-13, temperature: 100 ℃; On compressed air shotblasting machine, carry out bead, thereby play the effect of removing piece surface heat treatment oxide skin and improving the tooth bending fatigue behaviour.
12, fine finishining: pitch diameter location mill endoporus is to φ 104
0 + 0.035, grind small end face, guarantee gear beam overall 36
0 + 0.2, and guarantee that end face run-out is less than 0.02; Reliable small end face, the mill large end face, the depth of parallelism that guarantees gear beam overall 36 ± 0.1, two planes is less than 0.03.
13, roll flute: press m=3, z=42, Fr=0.05, Fw=0.036, w=41.48-41.51, F
f=0.013, F
β=0.011 carries out roll flute, goes out the workshop check by examination and test of products rules, and mark is known, and antirust oil, packing warehouse-in are cleaned, go up in product inspection.
Embodiment two:
The main technical requirements of 1006041AB-6DF1 shellfish difficult to understand (going up shellfish) ductile iron gear and being of a size of in the embodiment of the invention: modulus m
n=3, tooth number Z=52, profile angle α=20 °, bore size φ 68
0 + 0.030, roughness 1.6, outside circle size φ 162
-0.250 0, gear is wide by 17 ± 0.2, end face roughness 3.2, tooth-face roughness 0.8.The electro-smelting molten iron: melting molten iron composition of raw materials is the pig iron, the 20 weight % foundry returns of 70 weight %, the steel scrap of 10 weight %, cast iron melting is come out of the stove to 1480-1520 ℃, in casting ladle, carry out spheroidising with the method that pours, in casting ladle molten iron 97.2 weight %, put into the rare earth ferrosilicomagnesium intermediate alloy nodulizer of 1.6 weight % and the 75 ferrosilicon covertures of 0.7 weight % during spheroidising, put into inovulant subsequently and carry out inoculation, formula of modifying agent is 0.5 weight %75 ferrosilicon, and the chemical composition after the processing must meet above-mentioned chemical composition index request.Molten iron temperature after spheroidising and the inoculation should be controlled at 1380-1450 ℃; Molten steel solidification and be cooled to 500-600 ℃ after unpack; Annealing temperature: 880-920 ℃, insulation: be chilled to below 600 ℃ with stove after 3-4 hour and come out of the stove; Deng the heat treatment temperature of quenching be: 1.5-2 hour austenitizing of 880-920 ℃ of insulation, 350-370 ℃ of insulation isothermal hardening in 1.5-2 hour.Adopt above-mentioned melting molten iron composition of raw materials and process conditions in the embodiment of the invention, and adopt processing step and technological parameter among the embodiment one substantially, only increased in roughing and semifinishing and increased the drilling processing in hole on the spoke in the turning processing of spoke and the semifinishing, the Ao Bei of manufacturing (going up shellfish) ductile iron gear reaches above-mentioned technical indicator equally.
Embodiment three:
The main technical requirements of 1006042AB-6DF1 shellfish difficult to understand (going up shellfish) ductile iron gear and being of a size of in the embodiment of the invention: modulus m
n=3, tooth number Z=26, profile angle α=20 °, bore size φ 52H7 (
0 + 0.030), roughness 1.6, outside circle size φ 84h11 (
-0.22 0), the wide 46d9 of gear (
-0.142 -0.080), end face roughness 1.6, the facewidth 25.5 ± 0.1, tooth-face roughness 0.8.The electro-smelting molten iron: melting molten iron composition of raw materials is the pig iron, the 30 weight % foundry returns of 60 weight %, the steel scrap of 10 weight %, cast iron melting is come out of the stove to 1480-1520 ℃, in casting ladle, carry out spheroidising with the method that pours, in casting ladle molten iron 97.7 weight %, put into the rare earth ferrosilicomagnesium intermediate alloy nodulizer of 1.3 weight % and 75 ferrosilicon covertures of 0.6% weight during spheroidising, put into inovulant subsequently and carry out inoculation, formula of modifying agent is 0.4 weight %75 ferrosilicon.Molten iron temperature after spheroidising and the inoculation should be controlled at 1380-1450 ℃; Molten steel solidification and be cooled to 500-600 ℃ after unpack; Annealing temperature: 880-920 ℃, insulation: be chilled to below 600 ℃ with stove after 2-3 hour and come out of the stove; Deng the heat treatment temperature of quenching be: 1.2-1.7 hour austenitizing of 880-920 ℃ of insulation, 360-380 ℃ of insulation isothermal hardening in 1.2-1.7 hour.Adopt above-mentioned melting molten iron composition of raw materials and process conditions in the embodiment of the invention, and Ao Bei (the going up shellfish) ductile iron gear of processing step among the employing embodiment one and technological parameter manufacturing reaches above-mentioned technical indicator equally.
Ao Bei (go up shellfish) ductile iron gear successfully is implemented in≤batch production application on 280 horsepowers of diesels engine for automobile after diesel engine bench reliability long duration test in 1000 hours and small lot user road operation tracking test pass through.
The raw material that adopt among the present invention are market and purchase, and equipment adopts conventional equipment.
Claims (6)
1, a kind of manufacturing process that is used for Ao Bei (the going up shellfish) ductile iron gear on the diesel engine is characterized in that Ao Bei (going up shellfish) ductile iron gear manufacturing technology steps is as follows:
(1), swage manufacturing: gear adopts the device for sand coated iron mould casting, at first makes spray figure according to the monolateral surplus that adds of gear product figure, and monolateral adding covered layer of sand manufacturing swage on the basis of spray figure;
(2), moulding: on hot core core shooter, make the device for sand coated iron mould sand mold, adopt electrothermal tube swage to be heated heating-up temperature: 220-240 ℃, be blown into precoated sand then, formation device for sand coated iron mould sand mold;
(3), melting: with electric furnace smelting iron water, melting molten iron composition of raw materials is: pig iron 50-70 weight %, foundry return 20-40 weight %, steel scrap 10-20 weight %, come out of the stove for cast iron melting temperature: 1480-1520 ℃; Spheroidising is put into nodulizer and coverture earlier in casting ladle, carry out spheroidising with the method that pours in casting ladle; Put into inovulant in the molten iron after spheroidising and carry out inoculation; Treatment formulations is a molten iron: 97.2～98.4 weight %, nodulizer: 1～1.6 weight %, coverture: 0.3～0.7 weight %, inovulant: 0.3～0.5 weight %;
(4), cast: the molten iron temperature after spheroidising and the inoculation should be controlled at: 1380-1450 ℃, molten iron is poured in the device for sand coated iron mould sand mold of above-mentioned mould assembling, cast should have been watered in 8 minutes, unpack after treating molten steel solidification and being cooled to 500-600 ℃, the cleaning swage, knock out casting fin, remove the cast gate undesirable root with abrasive machine;
(5), annealing: annealing is carried out in cabinet-type electric furnace, and temperature is: 880-920 ℃, cool to the furnace below 600 ℃ after temperature retention time: 2-4 hour and come out of the stove;
(6), ultrasound examination: earlier the gear both ends of the surface are carried out turning processing, make the both ends of the surface roughness reach 6.3 grades, and make two plane keeping parallelisms, the calibration supersonic reflectoscope carries out total part flaw detection, to guarantee pore-free, shrinkage porosite in the gear foundry goods;
(7), roughing: rough turn tooth base, i.e. car endoporus, turning, skiving wheel beam overall;
(8), semifinishing: folder top circle, half finish turning end face, spoke, boring endoporus, aperture chamfering; Back strut endoporus, reliable end standard face skiving wheel cylindrical, half finish turning gear other end and spoke;
(9), gear hobbing: first gear hobbing, back chamfered edge, groove milling;
(10), the heat treatment of quenching such as: use the gasoline cleaning components, remove greasy dirt on the part, in well formula protective atmosphere electric furnace, heat austenitizing, isothermal hardening in the nitrate furnace, the heating austenitizing temperature is: 880-920 ℃, insulation: 1-2 hour, austempering temperature is: 350-390 ℃, insulation: 1-2 hour, residual salt, hardness: 26-35HRC were cleaned with clear water in the back of quenching;
(11), bead: the reusable heat buck carries out neutralisation treatment after the gear heat treatment, carries out bead on compressed air shotblasting machine;
(12), fine finishining: the pitch diameter location is ground endoporus, is ground datum end face, and end face run-out is less than 0.02; The depth of parallelism on reliable datum end face, mill other end, assurance gear two planes is less than 0.03;
(13), roll flute: shaving or roll flute;
(14), check: mark knowledge, product inspection, cleaning, last antirust oil, packing warehouse-in.
2, a kind of manufacturing process that is used for Ao Bei (the going up shellfish) ductile iron gear on the diesel engine according to claim 1 is characterized in that described precoated sand adopts sand in coating phenolic resin.
3, a kind of manufacturing process that is used for Ao Bei (the going up shellfish) ductile iron gear on the diesel engine according to claim 1, it is characterized in that described thermokalite aqueous solution acid-base value is: PH11-13, temperature is: 100 ℃.
4, a kind of manufacturing process that is used for Ao Bei (the going up shellfish) ductile iron gear on the diesel engine according to claim 1 is characterized in that described nodulizer is a rare earth ferrosilicomagnesium intermediate alloy nodulizer.
5, a kind of manufacturing process that is used for Ao Bei (the going up shellfish) ductile iron gear on the diesel engine according to claim 1 is characterized in that described coverture is 75 ferrosilicon covertures.
6, a kind of manufacturing process that is used for Ao Bei (the going up shellfish) ductile iron gear on the diesel engine according to claim 1 is characterized in that described inovulant is 75 ferrosilicon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100388440A CN100391688C (en) | 2006-03-15 | 2006-03-15 | Art for mfg. Austempered Ductile iron gear for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100388440A CN100391688C (en) | 2006-03-15 | 2006-03-15 | Art for mfg. Austempered Ductile iron gear for diesel engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1861313A true CN1861313A (en) | 2006-11-15 |
| CN100391688C CN100391688C (en) | 2008-06-04 |
Family
ID=37388894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100388440A Active CN100391688C (en) | 2006-03-15 | 2006-03-15 | Art for mfg. Austempered Ductile iron gear for diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100391688C (en) |
Cited By (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101695743A (en) * | 2009-09-27 | 2010-04-21 | 湖州鼎盛机械制造有限公司 | Method for producing traveling wheel |
| CN101736190A (en) * | 2009-12-09 | 2010-06-16 | 扬州电力设备修造厂 | Alloy austenitic-bainite ductile iron worm gear and preparation process thereof |
| CN101844306A (en) * | 2010-06-17 | 2010-09-29 | 株洲齿轮有限责任公司 | Processing method of annular gear of thin-wall member |
| CN102069153A (en) * | 2011-01-30 | 2011-05-25 | 江苏中力齿轮有限公司 | Casting method of thin-wall ductile iron gear blank |
| CN102069237A (en) * | 2010-12-17 | 2011-05-25 | 泰州市里华机械有限公司 | Push-broaching molding process of gear part of ring gear |
| CN101713454B (en) * | 2009-12-18 | 2011-08-03 | 吉林圆方机械集团有限公司 | Method for manufacturing driving/driven spiral bevel gear of heavy-duty commercial vehicle by using copper-niobium high-strength austempered ductile iron |
| CN102225509A (en) * | 2011-05-04 | 2011-10-26 | 天津天海同步科技股份有限公司 | Application of surface finishing technique for processing synchronizer gear hub |
| CN101579729B (en) * | 2009-07-02 | 2011-11-23 | 南通华东油压科技有限公司 | Shape-copying frozen iron composite forming die and forming technology thereof |
| CN102343421A (en) * | 2011-09-30 | 2012-02-08 | 郝国平 | Method for producing cylinder cover by sand-coated iron mould casting process |
| CN102489690A (en) * | 2011-12-16 | 2012-06-13 | 十堰市泰祥实业有限公司 | Method for as-cast non-alloying production for QT500-7 main bearing cap of gasoline engine |
| CN102848159A (en) * | 2011-07-01 | 2013-01-02 | 江苏高齿传动机械有限公司 | Processing method of involute of gear with large module and a few teeth |
| CN102899556A (en) * | 2012-11-02 | 2013-01-30 | 湖南华菱湘潭钢铁有限公司 | Production method for low-alloy medium-thick steel plate |
| CN102979884A (en) * | 2012-11-23 | 2013-03-20 | 无锡威孚中意齿轮有限责任公司 | Mine vehicle axle wheel reductor planetary gear and manufacture method thereof |
| CN101695742B (en) * | 2009-09-27 | 2013-03-20 | 湖州鼎盛机械制造有限公司 | Method for producing engine gear case |
| CN103009019A (en) * | 2011-09-22 | 2013-04-03 | 梁海 | Machining method for torque transmission plate of speed changing box |
| CN103084810A (en) * | 2012-11-13 | 2013-05-08 | 合肥市田源精铸有限公司 | Method for manufacturing gear for environment-friendly fuel feed pump |
| CN103447462A (en) * | 2013-09-12 | 2013-12-18 | 四川四方铸造有限责任公司 | Manufacturing process of intermediate casting of diesel engine |
| CN104226919A (en) * | 2014-08-19 | 2014-12-24 | 常州凯达重工科技有限公司 | Casting process of roller of pilger mill |
| CN104439988A (en) * | 2013-09-17 | 2015-03-25 | 贵州群建精密机械有限公司 | Machining technology for gear made of 9Cr18 material |
| CN104589003A (en) * | 2014-12-10 | 2015-05-06 | 苏州路路顺机电设备有限公司 | High-carbon steel gear machining process for gear pump |
| CN104759859A (en) * | 2015-03-19 | 2015-07-08 | 高灵军 | Gear machining process |
| CN104827242A (en) * | 2014-02-10 | 2015-08-12 | 廖树汉 | Machining method for reducing turning, planing, milling and boring of workpieces through casting and forging in surface layer after molding |
| CN104847779A (en) * | 2015-04-29 | 2015-08-19 | 广州市锐美汽车零部件有限公司 | Motor rotary shaft and machining method thereof |
| CN105537502A (en) * | 2015-12-30 | 2016-05-04 | 青岛博泰美联化工技术有限公司 | Sand casting method of diesel engine component |
| CN105537516A (en) * | 2015-12-30 | 2016-05-04 | 青岛博泰美联化工技术有限公司 | Sand casting method of diesel engine housing |
| CN106676248A (en) * | 2017-01-08 | 2017-05-17 | 刘志国 | Manufacturing method for high-strength austempered ductile iron spiral bevel gear of heavy-duty commercial vehicle |
| CN106825775A (en) * | 2017-01-19 | 2017-06-13 | 重庆大学 | Few teeth difference precise planetary reducer interior bracing technique |
| CN106834892A (en) * | 2017-01-08 | 2017-06-13 | 刘志国 | A kind of manufacture method of heavy-duty commercial vehicle high intensity austempered ductile iron spiral bevel gear |
| CN107253028A (en) * | 2017-06-12 | 2017-10-17 | 燕凌飞 | A kind of processing method of nest |
| CN107366735A (en) * | 2017-08-04 | 2017-11-21 | 扬州海昌新材股份有限公司 | A kind of helical gear and preparation method thereof |
| CN107538188A (en) * | 2016-06-28 | 2018-01-05 | 高玉琴 | A kind of processing method of wheel blank |
| CN108296721A (en) * | 2018-02-09 | 2018-07-20 | 安徽中石金属制品有限公司 | A kind of automobile support base processing technology |
| CN109877550A (en) * | 2019-02-22 | 2019-06-14 | 西安理工大学 | A kind of low-noise, self-lubricated medium and small modulus cylindrical gear and preparation method |
| CN110202329A (en) * | 2019-06-03 | 2019-09-06 | 泰州市金鹰齿轮有限公司 | A kind of production method of automobile gear and automobile gear drilling equipment |
| CN111069708A (en) * | 2019-12-28 | 2020-04-28 | 大可精密齿轮(浙江)有限公司 | Arc-shaped tooth machining process applied to speed reducer |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103495845B (en) * | 2013-10-11 | 2016-01-20 | 重庆渝青机械配件制造有限公司 | Back gear processing technology |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1037826C (en) * | 1992-10-19 | 1998-03-25 | 江兴锻压工业股份有限公司 | Method for mfg. (BJ) inner wheel of automobile transmission shaft with equi-speed joint |
| DE19738487A1 (en) * | 1997-09-04 | 1999-03-11 | Asea Brown Boveri | Method of manufacturing a gear wheel |
| CN1094409C (en) * | 1998-03-13 | 2002-11-20 | 张元增 | Method for making speed changer gear |
| JP2001295913A (en) * | 2000-04-12 | 2001-10-26 | Shin Kobe Electric Mach Co Ltd | Resin gear and method of manufacturing the same |
| CN1603057A (en) * | 2004-08-26 | 2005-04-06 | 薛安志 | Precision casting and extrusion processing technique of high-carbon chromium bearing steel cycloid wheel |
-
2006
- 2006-03-15 CN CNB2006100388440A patent/CN100391688C/en active Active
Cited By (41)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101579729B (en) * | 2009-07-02 | 2011-11-23 | 南通华东油压科技有限公司 | Shape-copying frozen iron composite forming die and forming technology thereof |
| CN101695743A (en) * | 2009-09-27 | 2010-04-21 | 湖州鼎盛机械制造有限公司 | Method for producing traveling wheel |
| CN101695742B (en) * | 2009-09-27 | 2013-03-20 | 湖州鼎盛机械制造有限公司 | Method for producing engine gear case |
| CN101695743B (en) * | 2009-09-27 | 2012-12-19 | 湖州鼎盛机械制造有限公司 | Method for producing traveling wheel |
| CN101736190A (en) * | 2009-12-09 | 2010-06-16 | 扬州电力设备修造厂 | Alloy austenitic-bainite ductile iron worm gear and preparation process thereof |
| CN101713454B (en) * | 2009-12-18 | 2011-08-03 | 吉林圆方机械集团有限公司 | Method for manufacturing driving/driven spiral bevel gear of heavy-duty commercial vehicle by using copper-niobium high-strength austempered ductile iron |
| CN101844306A (en) * | 2010-06-17 | 2010-09-29 | 株洲齿轮有限责任公司 | Processing method of annular gear of thin-wall member |
| CN102069237A (en) * | 2010-12-17 | 2011-05-25 | 泰州市里华机械有限公司 | Push-broaching molding process of gear part of ring gear |
| CN102069153A (en) * | 2011-01-30 | 2011-05-25 | 江苏中力齿轮有限公司 | Casting method of thin-wall ductile iron gear blank |
| CN102225509A (en) * | 2011-05-04 | 2011-10-26 | 天津天海同步科技股份有限公司 | Application of surface finishing technique for processing synchronizer gear hub |
| CN102848159A (en) * | 2011-07-01 | 2013-01-02 | 江苏高齿传动机械有限公司 | Processing method of involute of gear with large module and a few teeth |
| CN102848159B (en) * | 2011-07-01 | 2016-01-20 | 常州展华机器人有限公司 | A kind of processing method of large-modulus few-tooth Involute gear |
| CN103009019A (en) * | 2011-09-22 | 2013-04-03 | 梁海 | Machining method for torque transmission plate of speed changing box |
| CN102343421A (en) * | 2011-09-30 | 2012-02-08 | 郝国平 | Method for producing cylinder cover by sand-coated iron mould casting process |
| CN102489690A (en) * | 2011-12-16 | 2012-06-13 | 十堰市泰祥实业有限公司 | Method for as-cast non-alloying production for QT500-7 main bearing cap of gasoline engine |
| CN102899556B (en) * | 2012-11-02 | 2014-05-28 | 湖南华菱湘潭钢铁有限公司 | Production method for low-alloy medium-thick steel plate |
| CN102899556A (en) * | 2012-11-02 | 2013-01-30 | 湖南华菱湘潭钢铁有限公司 | Production method for low-alloy medium-thick steel plate |
| CN103084810A (en) * | 2012-11-13 | 2013-05-08 | 合肥市田源精铸有限公司 | Method for manufacturing gear for environment-friendly fuel feed pump |
| CN102979884A (en) * | 2012-11-23 | 2013-03-20 | 无锡威孚中意齿轮有限责任公司 | Mine vehicle axle wheel reductor planetary gear and manufacture method thereof |
| CN102979884B (en) * | 2012-11-23 | 2015-04-29 | 无锡威孚中意齿轮有限责任公司 | Manufacturing method for mine vehicle axle wheel reductor planetary gear |
| CN103447462A (en) * | 2013-09-12 | 2013-12-18 | 四川四方铸造有限责任公司 | Manufacturing process of intermediate casting of diesel engine |
| CN104439988A (en) * | 2013-09-17 | 2015-03-25 | 贵州群建精密机械有限公司 | Machining technology for gear made of 9Cr18 material |
| CN104827242B (en) * | 2014-02-10 | 2017-11-10 | 廖树汉 | Interior casting forging and stamping make the machining process of workpiece subduction car plane milling boring after surface layer shaping |
| CN104827242A (en) * | 2014-02-10 | 2015-08-12 | 廖树汉 | Machining method for reducing turning, planing, milling and boring of workpieces through casting and forging in surface layer after molding |
| CN104226919A (en) * | 2014-08-19 | 2014-12-24 | 常州凯达重工科技有限公司 | Casting process of roller of pilger mill |
| CN104589003A (en) * | 2014-12-10 | 2015-05-06 | 苏州路路顺机电设备有限公司 | High-carbon steel gear machining process for gear pump |
| CN104759859A (en) * | 2015-03-19 | 2015-07-08 | 高灵军 | Gear machining process |
| CN104847779A (en) * | 2015-04-29 | 2015-08-19 | 广州市锐美汽车零部件有限公司 | Motor rotary shaft and machining method thereof |
| CN105537502A (en) * | 2015-12-30 | 2016-05-04 | 青岛博泰美联化工技术有限公司 | Sand casting method of diesel engine component |
| CN105537516A (en) * | 2015-12-30 | 2016-05-04 | 青岛博泰美联化工技术有限公司 | Sand casting method of diesel engine housing |
| CN107538188A (en) * | 2016-06-28 | 2018-01-05 | 高玉琴 | A kind of processing method of wheel blank |
| CN106676248A (en) * | 2017-01-08 | 2017-05-17 | 刘志国 | Manufacturing method for high-strength austempered ductile iron spiral bevel gear of heavy-duty commercial vehicle |
| CN106834892A (en) * | 2017-01-08 | 2017-06-13 | 刘志国 | A kind of manufacture method of heavy-duty commercial vehicle high intensity austempered ductile iron spiral bevel gear |
| CN106825775A (en) * | 2017-01-19 | 2017-06-13 | 重庆大学 | Few teeth difference precise planetary reducer interior bracing technique |
| CN107253028A (en) * | 2017-06-12 | 2017-10-17 | 燕凌飞 | A kind of processing method of nest |
| CN107366735A (en) * | 2017-08-04 | 2017-11-21 | 扬州海昌新材股份有限公司 | A kind of helical gear and preparation method thereof |
| CN108296721A (en) * | 2018-02-09 | 2018-07-20 | 安徽中石金属制品有限公司 | A kind of automobile support base processing technology |
| CN109877550A (en) * | 2019-02-22 | 2019-06-14 | 西安理工大学 | A kind of low-noise, self-lubricated medium and small modulus cylindrical gear and preparation method |
| CN109877550B (en) * | 2019-02-22 | 2020-10-27 | 西安理工大学 | Low-noise self-lubricating medium-and-small-modulus cylindrical gear and preparation method thereof |
| CN110202329A (en) * | 2019-06-03 | 2019-09-06 | 泰州市金鹰齿轮有限公司 | A kind of production method of automobile gear and automobile gear drilling equipment |
| CN111069708A (en) * | 2019-12-28 | 2020-04-28 | 大可精密齿轮(浙江)有限公司 | Arc-shaped tooth machining process applied to speed reducer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100391688C (en) | 2008-06-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100391688C (en) | Art for mfg. Austempered Ductile iron gear for diesel engine | |
| JP4352261B2 (en) | gear | |
| CN101736190B (en) | Alloy austenitic-bainite ductile iron worm gear and preparation process thereof | |
| CN103348031B (en) | Nitridation steel and nitridation component | |
| CN102199731B (en) | Composite microalloyed large-section non-quenched and tempered steel | |
| JP2000514868A (en) | Induction hardened trace alloy steel with high fatigue strength properties | |
| CN1063364C (en) | Method for producing a vehicular endless track link | |
| CN109877550B (en) | Low-noise self-lubricating medium-and-small-modulus cylindrical gear and preparation method thereof | |
| JP6652019B2 (en) | Machine structural steel and induction hardened steel parts for induction hardening | |
| CN109321739A (en) | A kind of heat-treatment processing process of big infiltration layer heavy-duty gear | |
| CN110592465A (en) | Sliding bearing based on structure enabling material and preparation method thereof | |
| CN112210715A (en) | Self-hardening iron-based material for shearing blade and preparation method of shearing blade | |
| CN110565007A (en) | Threaded lead screw of lead screw pair based on structure energized material and manufacturing method | |
| CN1291802C (en) | Composite roller for high vanadium high speed steel and its production process | |
| JP5912778B2 (en) | Gears with excellent peel resistance and impact fatigue resistance | |
| JP2008223126A (en) | Gear made of ductile cast iron | |
| CN105274299A (en) | Process for producing a component made of heat-treated cast iron | |
| Goodrich | Introduction to cast irons | |
| CN115026517B (en) | Planetary gear shaft, special material for planetary gear shaft and hot forging forming process of special material | |
| JP2006199993A (en) | Steel material to be case-hardened superior in cold forgeability and temper softening resistance | |
| Wieczorek | Comparative studies on the wear of ADI alloy cast irons as well as selected steels and surface-hardened alloy cast steels in the presence of abrasive | |
| JP3842430B2 (en) | Hot-worked steel materials and products excellent in free-cutting properties and methods for producing them | |
| CN109262203A (en) | A kind of preparation method of impact resistance alloy tool steel steel ball | |
| JP7368697B2 (en) | Steel for carburized gears, carburized gears, and method for manufacturing carburized gears | |
| JPH11293387A (en) | Hot worked steel excellent in machinability, and product, and their production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINESE AUTO GROUP CO NO.1 Free format text: FORMER OWNER: WUXI DIESEL ENGINE PLANT, CHINA NO.1 AUTOMOBILES GROUP CORP. Effective date: 20101119 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 214026 NO. 9, TANGNAN BRANCH ROAD 1, NANCHANG DISTRICT, WUXI CITY, JIANGSU PROVINCE TO: 130011 NO. 2259, DONGFENG AVENUE, CHANGCHUN CITY, JILIN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20101119 Address after: 130011 Dongfeng Street, Jilin, Changchun, No. 2259 Patentee after: China FAW Group Corporation Address before: 214026, No. 9, South Branch Road, South District, Jiangsu, Wuxi Patentee before: China First Automobile Works Group Corporation Wuxi Diesel Engine Works |