CN106734955A - A kind of aluminium alloy steering gear housing casting process - Google Patents

A kind of aluminium alloy steering gear housing casting process Download PDF

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Publication number
CN106734955A
CN106734955A CN201611198086.9A CN201611198086A CN106734955A CN 106734955 A CN106734955 A CN 106734955A CN 201611198086 A CN201611198086 A CN 201611198086A CN 106734955 A CN106734955 A CN 106734955A
Authority
CN
China
Prior art keywords
core
casting
cover half
aluminium alloy
steering gear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201611198086.9A
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Chinese (zh)
Inventor
陈灵巧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Aishida Automotive Components Co Ltd
Original Assignee
Shanghai Aishida Automotive Components Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Aishida Automotive Components Co Ltd filed Critical Shanghai Aishida Automotive Components Co Ltd
Priority to CN201611198086.9A priority Critical patent/CN106734955A/en
Publication of CN106734955A publication Critical patent/CN106734955A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/06Permanent moulds for shaped castings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/22Moulds for peculiarly-shaped castings

Abstract

The invention discloses a kind of aluminium alloy steering gear housing casting process, including core step is made, aluminium alloy thawing step, preheating step, core loads step, casting step, cooling step and subsequent treatment and detecting step.A kind of aluminium alloy steering gear housing casting process of the invention can produce the aluminium-silicon alloy casting of the complicated high-quality of shape and structure, while work situation condition is improved, reduce the labour intensity of operator, improve production efficiency.Using metal mold plus the casting of the technique productions of core, because metal mold has good cooling effect, the castings material consistency than full sand casting is high, and good airproof performance, good mechanical property, dimensional accuracy is high;And than sand casting save substantial amounts of molding sand, it is to avoid the generation of stomata in casting cycle, save mass energy.

Description

A kind of aluminium alloy steering gear housing casting process
Technical field
The present invention relates to a kind of aluminium alloy steering gear housing casting process that field is made for auto parts.
Background technology
Aluminium alloy steering gear housing is the main part of automobile steering system, and its overall size is 278mm*260mm* The irregularly-shaped castings of 100mm, internal structure is complicated.Due to the core component that it is hydraulic steering system, part failure can cause vapour Car turns to failure and causes personal injury, to its performance requirement for the compactness of part will get well, stomata, crackle, loose is not allowed Etc. casting flaw, the X-ray that part has to pass through 100% detects a flaw, tensile strength >=275MPa, elongation percentage >=2.5%, and hardness >= 100HB.Once the wall unevenness of part is even, stomata and loose is produced during casting, being easily caused part during T6 treatment is deformed.
The content of the invention
The invention aims to overcome the deficiencies in the prior art, there is provided a kind of aluminium alloy steering gear housing teemer Skill, the casting for carrying out aluminium alloy steering gear housing by this technique can cause that cast structure consistency is high, and casting quality is good.
Realizing a kind of technical scheme of above-mentioned purpose is:A kind of aluminium alloy steering gear housing casting process, including following step Suddenly:
Step S1, makes core step:Using the precoated sand of 50/100 mesh, 220 DEG C to 400 DEG C of core system is being heated to Make to be made core in mould;
Step S2, aluminum alloy melting step:Aluminium alloy melt is put into melt in furnace into liquid, and at 700 DEG C -750 DEG C temperature in, by refining, degasification, slagging-off, rotten aluminium liquid treatment process obtain cleaning aluminium liquid it is stand-by;
Step S3, preheating step:The die cavity of metal pattern die is heated to 200 DEG C -350 DEG C, gold is disposed with jetting tool Rusty stain and debris on genotype mold forming surface, spray upper special anti-sticking aluminum metal model cavity coating afterwards;
Step S4, core loads step:Rack bore core is loaded into metal pattern die, clears up residual in die cavity with compressed air Several impurity of thing are stayed, matched moulds is carried out to metal pattern die;
Step S5, casting step:By in the tundish of aluminium liquid injection metal pattern die, starting device carries out automatic quiescent pouring, Equipment makes aluminium liquid flow into the inside cavity of metal pattern die from 90 ° of rotations to 0 °;
Step S6, cooling step:Slave unit is overturn to the casting that makes aluminium liquid form solid-state is begun to cool down after 0 °, then equipment Start reversely to vert until restoring, mould, ejection casting, take out cast product in opening core pulling, opening;
Step S7, subsequent treatment and detecting step:Removal the pouring of casting, rising head, remove the core sand of core cavity, to casting Polishing finishing, X-ray flaw detections, T6 heat treatments, then obtain the shell casting of finished product.
Further, the step S6, cooling step, its cooling is cooled down using timing, in die flip to beginning after 0 ° Timing, stopping cooling being proceeded by and reversely verted after 200S.
Further, the metal pattern die includes dynamic model, cover half and core;The dynamic model upper surface is respectively provided on two sides with Motion connector;A pulled core structure is provided with the top surface of the dynamic model;The cover half is located at the lower section of the dynamic model; The top surface of the cover half is provided with core positioning seat;The bottom surface of the cover half is respectively provided on two sides with cover half base;Described fixed Mould base span is connected to one piece of fixed clamping plate, and the fixed clamping plate is connected by connecting pole with the cover half;In the cover half Preceding surface is provided with a sprue cup;The core is arranged in the die cavity after the dynamic model and the cover half matched moulds, the sand Core is manufactured using the precoated sand of 50/100 mesh.
A kind of aluminium alloy steering gear housing casting process of the invention can produce the aluminium of the complicated high-quality of shape and structure Silicon alloy casting, while work situation condition is improved, reduces the labour intensity of operator, improves production effect Rate.Using metal mold plus the casting of the technique productions of core, because metal mold has good cooling effect, than full sand casting Castings material consistency is high, and good airproof performance, good mechanical property, dimensional accuracy is high;And save substantial amounts of type than sand casting Sand, it is to avoid the generation of stomata in casting cycle, has saved mass energy.
Brief description of the drawings
Fig. 1 is a kind of technological process of aluminium alloy steering gear housing casting process of the invention;
Fig. 2 is a kind of structural representation of the metal pattern die of aluminium alloy steering gear housing casting process of the invention;
Fig. 3 is a kind of structural representation of the core of aluminium alloy steering gear housing casting process of the invention.
Specific embodiment
Fig. 1 to Fig. 3 is referred to, in order to be able to preferably understand technical scheme, below by specifically Embodiment is simultaneously described in detail with reference to accompanying drawing:
Fig. 1 is referred to, a kind of aluminium alloy steering gear housing casting process comprises the following steps:
Step S1, makes core step:Using the precoated sand of 50/100 mesh, 220 DEG C to 400 DEG C of core system is being heated to Make to be made core 3 in mould;
Step S2, aluminum alloy melting step:Aluminium alloy melt is put into melt in furnace into liquid, and at 700 DEG C -750 DEG C temperature in, by refining, degasification, slagging-off, rotten aluminium liquid treatment process obtain cleaning aluminium liquid it is stand-by;
Step S3, preheating step:The die cavity of metal pattern die is heated to 200 DEG C -350 DEG C, gold is disposed with jetting tool Rusty stain and debris on genotype mold forming surface, spray upper special anti-sticking aluminum metal model cavity coating afterwards;
Step S4, core loads step:Rack bore core is loaded into metal pattern die, clears up residual in die cavity with compressed air Several impurity of thing are stayed, matched moulds is carried out to metal pattern die;
Step S5, casting step:By in the tundish of aluminium liquid injection metal pattern die, starting device carries out automatic quiescent pouring, Equipment makes aluminium liquid flow into the inside cavity of metal pattern die from 90 ° of rotations to 0 °, and its cast temperature is 700-730 degree;
Step S6, cooling step:Slave unit is overturn to beginning after 0 °, starts timing cooling, and cooling is stopped after 200S, The casting for making aluminium liquid form solid-state is cooled down, is then proceeded by and is reversely verted until restoring, mould, ejection in opening core pulling, opening Casting, takes out cast product;
Step S7, subsequent treatment and detecting step:Removal the pouring of casting, rising head, remove the core sand of core cavity, to casting Polishing finishing, X-ray flaw detections, T6 heat treatments, then obtain the shell casting of finished product.
As shown in Figures 2 and 3, metal pattern die includes dynamic model 1, cover half 2 and core 3;The both sides of the upper surface of dynamic model 1 set respectively There is motion connector 11;A pulled core structure 12 is provided with the top surface of dynamic model 1;Cover half 2 is located at the lower section of dynamic model 1;It is fixed The top surface of mould 2 is provided with core positioning seat 28;The bottom surface of cover half 2 is respectively provided on two sides with cover half base 21;In cover half base 21 Span is connected to one piece of fixed clamping plate 22, and fixed clamping plate 22 is connected 2 by connecting pole 23 with cover half;Set on the preceding surface of cover half 2 There is a sprue cup 24;Core 3 is arranged in the die cavity after dynamic model 1 and the 2-in-1 mould of cover half, and core 3 uses the overlay film of 50/100 mesh Sand is manufactured.
Those of ordinary skill in the art it should be appreciated that the embodiment of the above be intended merely to explanation the present invention, And be not used as being limitation of the invention, as long as in spirit of the invention, the change to embodiment described above Change, modification will all fall in the range of claims of the present invention.

Claims (3)

1. a kind of aluminium alloy steering gear housing casting process, it is characterised in that comprise the following steps:
Step S1, makes core step:Using the precoated sand of 50/100 mesh, mould is made in the core for being heated to 220 DEG C to 400 DEG C Core is made in tool;
Step S2, aluminum alloy melting step:Aluminium alloy melt is put into melt in furnace into liquid, and at 700 DEG C -750 DEG C In temperature, the aluminium liquid for obtaining cleaning by refining, degasification, slagging-off, rotten aluminium liquid treatment process is stand-by;
Step S3, preheating step:The die cavity of metal pattern die is heated to 200 DEG C -350 DEG C, metal mold is disposed with jetting tool Rusty stain and debris on mold forming surface, spray upper special anti-sticking aluminum metal model cavity coating afterwards;
Step S4, core loads step:Rack bore core is loaded into metal pattern die, the residue cleared up in die cavity with compressed air Several impurity, matched moulds is carried out to metal pattern die;
Step S5, casting step:By in the tundish of aluminium liquid injection metal pattern die, starting device carries out automatic quiescent pouring, equipment From 90 ° of rotations to 0 °, aluminium liquid is set to flow into the inside cavity of metal pattern die;
Step S6, cooling step:Slave unit is overturn to the casting that makes aluminium liquid form solid-state is begun to cool down after 0 °, and then equipment starts Reversely vert until restoring, mould, ejection casting, take out cast product in opening core pulling, opening;
Step S7, subsequent treatment and detecting step:Removal the pouring of casting, rising head, remove the core sand of core cavity, to casting grinding Finishing, X-ray flaw detections, T6 heat treatments, then obtain the shell casting of finished product.
2. a kind of aluminium alloy steering gear housing casting process according to claim 1, it is characterised in that the step S6, Cooling step, its cooling using timing cooling, in die flip to timing is started after 0 °, stop after 200S cooling start into Row reversely verts.
3. a kind of aluminium alloy steering gear housing casting process according to claim 1, it is characterised in that the metal pattern die Including dynamic model, cover half and core;The dynamic model upper surface is respectively provided on two sides with motion connector;On the top of the dynamic model Face is provided with a pulled core structure;The cover half is located at the lower section of the dynamic model;The top surface of the cover half is provided with core positioning Seat;The bottom surface of the cover half is respectively provided on two sides with cover half base;One piece of fixed clamping plate, institute are connected in the cover half base span Fixed clamping plate is stated to be connected with the cover half by connecting pole;A sprue cup is provided with the preceding surface of the cover half;The sand Core is arranged in the die cavity after the dynamic model and the cover half matched moulds, and the core is manufactured using the precoated sand of 50/100 mesh.
CN201611198086.9A 2016-12-22 2016-12-22 A kind of aluminium alloy steering gear housing casting process Pending CN106734955A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611198086.9A CN106734955A (en) 2016-12-22 2016-12-22 A kind of aluminium alloy steering gear housing casting process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611198086.9A CN106734955A (en) 2016-12-22 2016-12-22 A kind of aluminium alloy steering gear housing casting process

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107363227A (en) * 2017-07-26 2017-11-21 江苏雷科德轨道交通科技有限公司 Gear case body casting manufacture craft
CN107521561A (en) * 2017-08-03 2017-12-29 安徽万安汽车零部件有限公司 A kind of automobile rear sub-frame and its casting method
CN108393437A (en) * 2018-02-09 2018-08-14 江苏恒高精密成型科技有限公司 A kind of production technology of cast housing
CN109114828A (en) * 2018-08-28 2019-01-01 鑫威铝业(漳州)有限公司 A kind of solar energy aluminium alloy post and aluminium alloy material preparation method for material
CN109622885A (en) * 2019-01-18 2019-04-16 山东鸿源新材料有限公司 The production technology of aluminium alloy condenser boiler piece
CN113458364A (en) * 2021-06-29 2021-10-01 安徽古月机械制造有限公司 Preparation method of thick and large-section aluminum alloy casting

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201267870Y (en) * 2008-09-24 2009-07-08 上海大学 Tilting type metal mold casting device
CN102688990A (en) * 2012-06-15 2012-09-26 上海嘉朗实业有限公司 Aluminium alloy hydraulic motor shell gravity casting mould and manufacturing method thereof
CN203679177U (en) * 2013-12-24 2014-07-02 上海爱仕达汽车零部件有限公司 Aluminum-alloy gravity-tilting casting mould
CN105382242A (en) * 2015-12-30 2016-03-09 上海爱仕达汽车零部件有限公司 Casting process of cylinder cover
CN105821263A (en) * 2016-04-01 2016-08-03 珠海嵘泰有色金属铸造有限公司 Aluminum alloy automobile steering gear case and superspeed casting preparing method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201267870Y (en) * 2008-09-24 2009-07-08 上海大学 Tilting type metal mold casting device
CN102688990A (en) * 2012-06-15 2012-09-26 上海嘉朗实业有限公司 Aluminium alloy hydraulic motor shell gravity casting mould and manufacturing method thereof
CN203679177U (en) * 2013-12-24 2014-07-02 上海爱仕达汽车零部件有限公司 Aluminum-alloy gravity-tilting casting mould
CN105382242A (en) * 2015-12-30 2016-03-09 上海爱仕达汽车零部件有限公司 Casting process of cylinder cover
CN105821263A (en) * 2016-04-01 2016-08-03 珠海嵘泰有色金属铸造有限公司 Aluminum alloy automobile steering gear case and superspeed casting preparing method thereof

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107363227A (en) * 2017-07-26 2017-11-21 江苏雷科德轨道交通科技有限公司 Gear case body casting manufacture craft
CN107521561A (en) * 2017-08-03 2017-12-29 安徽万安汽车零部件有限公司 A kind of automobile rear sub-frame and its casting method
CN108393437A (en) * 2018-02-09 2018-08-14 江苏恒高精密成型科技有限公司 A kind of production technology of cast housing
CN109114828A (en) * 2018-08-28 2019-01-01 鑫威铝业(漳州)有限公司 A kind of solar energy aluminium alloy post and aluminium alloy material preparation method for material
CN109622885A (en) * 2019-01-18 2019-04-16 山东鸿源新材料有限公司 The production technology of aluminium alloy condenser boiler piece
CN113458364A (en) * 2021-06-29 2021-10-01 安徽古月机械制造有限公司 Preparation method of thick and large-section aluminum alloy casting

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Application publication date: 20170531