CN108728706A - A kind of pressure casting method of auto parts machinery - Google Patents

A kind of pressure casting method of auto parts machinery Download PDF

Info

Publication number
CN108728706A
CN108728706A CN201710254096.8A CN201710254096A CN108728706A CN 108728706 A CN108728706 A CN 108728706A CN 201710254096 A CN201710254096 A CN 201710254096A CN 108728706 A CN108728706 A CN 108728706A
Authority
CN
China
Prior art keywords
casting
oxygen
raw
auto parts
injected
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
CN201710254096.8A
Other languages
Chinese (zh)
Inventor
尚亚民
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.)
Far East Guizhou Gearing Co Ltd
Original Assignee
Far East Guizhou Gearing 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 Far East Guizhou Gearing Co Ltd filed Critical Far East Guizhou Gearing Co Ltd
Priority to CN201710254096.8A priority Critical patent/CN108728706A/en
Publication of CN108728706A publication Critical patent/CN108728706A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C21/00Alloys based on aluminium
    • C22C21/12Alloys based on aluminium with copper as the next major constituent
    • C22C21/14Alloys based on aluminium with copper as the next major constituent with silicon
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making alloys
    • C22C1/02Making alloys by melting
    • C22C1/026Alloys based on aluminium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making alloys
    • C22C1/06Making alloys with the use of special agents for refining or deoxidising
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C21/00Alloys based on aluminium
    • C22C21/12Alloys based on aluminium with copper as the next major constituent
    • C22C21/16Alloys based on aluminium with copper as the next major constituent with magnesium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C21/00Alloys based on aluminium
    • C22C21/12Alloys based on aluminium with copper as the next major constituent
    • C22C21/18Alloys based on aluminium with copper as the next major constituent with zinc

Abstract

The invention discloses a kind of pressure casting methods of auto parts machinery to be included the following steps using a kind of aluminium alloy:Metamorphism treatment:Raw material is melted and is warming up to 600 DEG C~745 DEG C, the addition alterant in raw material carries out Metamorphism treatment;Melting:Raw material after Metamorphism treatment is warming up to 660 DEG C~820 DEG C into liquid material;Molding:Until mold parting surface has gap, stopping molding;Oxygen is injected into gap;Continue to mold, mold is closed completely;Liquid material is injected into barrel;After injecting liquid material, oxygen, die casting, cooling, die sinking are injected into barrel, that is, completes the die casting of product;The present invention is improved as a result of this aluminium alloy, the tensile strength of manufactured product, modifying-refining tissue, heat resistance, elongation percentage;Inside die-casting part stomata fraction defective is greatly decreased, and product qualification rate has been increased to 95% or more, adds mixing alterant and makes the practical performance for improving material after Metamorphism treatment.

Description

A kind of pressure casting method of auto parts machinery
Technical field
The present invention relates to the pressure casting methods of die cast metal technical field, especially a kind of auto parts machinery for aluminium alloy.
Background technology
Die casting is a kind of metal casting technique, its main feature is that applying high pressure to molten metal using mold cavity.Mold is logical Often be made of higher strength alloys, this process some similar to injection molding.Most of die casting casting are all not It is iron-containing, such as zinc, copper, aluminium, magnesium, lead, tin and terne metal and their alloy.According to the difference of die casting type, need To use cold-chamber die casting machine or hot chamber machine.
Casting Equipment and the cost of mold are high, therefore die-casting process is generally only used in batch micro operations large-tonnage product.System Comparatively the parts for making die casting are easier, this general only four key step of needs, unit cost increment is very low, die casting It is particularly suitable for manufacture a large number of small and medium-sized castings, therefore die casting is that the most widely used in a variety of casting processes.With other Foundry engieering is compared, and the surface of die casting is more smooth, possesses higher dimensional uniformity, absurd fantastic on the basis of traditional die-casting process Several follow-on techniques have been given birth to, including have reduced the Poreless die casting technique that casting flaw excludes stomata.It is mainly used for processing zinc, it can To reduce the direct injection technique that waste increases yield rate.Also by the essence close die-casting technique of speed of General Dynamics Corp.'s invention with And the new-type die-casting process of semisolid pressure casting etc., in auto parts machinery production industry, the common die-casting technique of generally use carries out automobile The production of accessory, and the die casting of common die-casting technique production at present, the especially auto parts machinery of aluminium alloy are easily deposited in tissue Lead to bad phenomenon in stomata, while again since that there are intensity is low, mechanical performance is not high, corrosion-resistant, high temperature resistant for Al-alloy parts The defects of poor performance.
Invention content
Goal of the invention:In view of the problems of the existing technology, the present invention provides a kind of pressure casting method of auto parts machinery, with solution It easily deposits stomata in the Die-casting Machines poor performance and tissue of certainly existing Al-alloy parts and has good timeliness, remelting to die casting The problem of stability and other effects.
Technical solution:1. a kind of pressure casting method of auto parts machinery, it is characterised in that:Using a kind of aluminium alloy, the aluminium alloy It is made of the raw material of following weight proportion:Si≤6.2%;Cu:5.6%~7.2%;Mg≤0.1%;Zn≤0.22%;Mn: 0.42%~0.56%;Ti:0.25%~0.65%;Zr:0.05%~0.08%;Cd≤0.33%;Sc:0.25%~ 0.45%;Cr0.03%~0.08%;Surplus Al and Fe.
Include the following steps:
1), Metamorphism treatment:Raw material is melted and is warming up to 600 DEG C~745 DEG C, is added and becomes in raw material
Matter agent carries out Metamorphism treatment, stands 2 hours~2.5 hours;
2), melting:Raw material after Metamorphism treatment is warming up to 660 DEG C~820 DEG C into liquid material;
3) it, molds:Until mold parting surface has 10 millimeters~30 millimeters gaps, stopping molding;
4) oxygen, is injected into gap;
5), continue to mold, mold is closed completely;
6) liquid material, is injected into barrel;
7, after injecting liquid material, oxygen is injected into barrel;
8), die casting;
9), cooling;
10), the die casting of product is completed in die sinking.
Specifically, alterant is mixing alterant.
Specifically, the oxygen in the step 4 is the oxygen that pressure is 0.2Mpa~0.75Mpa.
Specifically, the oxygen in the step 7 is the oxygen that pressure is 0.03Mpa~0.1Mpa.
Specifically, the mixing alterant is Sr by mass fraction:0.06%, carbon hexachloride, manganese chloride composition, enhance aluminium The tensile strength of alloy.
Advantageous effect:Compared with prior art the advantage of the invention is that:As a result of this aluminium alloy, manufactured product Tensile strength, modifying-refining tissue, heat resistance, elongation percentage be improved;Inside die-casting part stomata fraction defective is greatly decreased, production Product qualification rate has been increased to 95% or more, adds mixing alterant and makes the practicability for improving material after Metamorphism treatment Energy.
Specific implementation mode
Invention is made in conjunction with the embodiments and being described in further detail.
Embodiment 1:
A kind of pressure casting method of auto parts machinery, using a kind of aluminium alloy, the aluminium alloy by following weight proportion raw material group At:Si:5.2%;Cu:6.3%;Mg:0.03%;Zn:0.1%;Mn:0.5%;Ti:0.46%;Zr:0.06%;Cd: 0.26%;Sc:0.31%;Cr:0.04%;Surplus Al and Fe;
Include the following steps:
1), Metamorphism treatment:Raw material is melted and is warming up to 600 DEG C~745 DEG C, alterant is added in raw material, is become Matter processing, stands 2 hours;
2), melting:Raw material after Metamorphism treatment is warming up to 660 DEG C~820 DEG C into liquid material;
3) it, molds:Until mold parting surface has 10 millimeters of gaps, stopping molding;
4) oxygen, is injected into gap;
5), continue to mold, mold is closed completely;
6) liquid material, is injected into barrel;
7, after injecting liquid material, oxygen is injected into barrel;
8), die casting;
9), cooling;
10) it, molds, that is, completes the die casting of product.
Embodiment 2
A kind of pressure casting method of auto parts machinery, using a kind of aluminium alloy, the aluminium alloy by following weight proportion raw material group At:Si:6%;Cu:7.2%;Mg:0.1%;Zn:0.22%;Mn:0.56%;Ti:0.65%;Zr:0.08%;Cd: 0.26%;Sc:0.31%;Cr:0.04%;Surplus Al and Fe;
1), Metamorphism treatment:Raw material is melted and is warming up to 600 DEG C~745 DEG C, alterant is added in raw material, is become Matter processing, stands 2~4 hours;
2), melting:Raw material after Metamorphism treatment is warming up to 660 DEG C~820 DEG C into liquid material;
3) it, molds:Until mold parting surface has 30 millimeters of gaps, stopping molding;
4) oxygen, is injected into gap;
5), continue to mold, mold is closed completely;
6) liquid material, is injected into barrel;
7, after injecting liquid material, oxygen is injected into barrel;
8), die casting;
9), cooling;
10) it, molds, that is, completes the die casting of product.
Tensile strength (δ b) >=485Mpa of obtained product, elongation percentage (δ b) >=7.5%, Brinell hardness 121 are added Mixing alterant makes the performance that material is improved after Metamorphism treatment.

Claims (5)

1. a kind of pressure casting method of auto parts machinery, it is characterised in that:Using a kind of aluminium alloy, the aluminium alloy is by following weight proportion Raw material composition:Si≤6.2%;Cu:5.6%~7.2%;Mg≤0.1%;Zn≤0.22%;Mn:0.42%~0.56%; Ti:0.25%~0.65%;Zr:0.05%~0.08%;Cd≤0.33%;Sc:0.25%~0.45%;Cr0.03%~ 0.08%;Surplus Al and Fe;
Include the following steps:
1), Metamorphism treatment:Raw material is melted and is warming up to 600 DEG C~745 DEG C, the addition alterant in raw material carries out rotten place Reason stands 2 hours~2.5 hours;
2), melting:Raw material after Metamorphism treatment is warming up to 660 DEG C~820 DEG C into liquid material;
3) it, molds:Until mold parting surface has 10 millimeters~30 millimeters gaps, stopping molding;
4) oxygen, is injected into gap;
5), continue to mold, mold is closed completely;
6) liquid material, is injected into barrel;
7, after injecting liquid material, oxygen is injected into barrel;
8), die casting;
9), cooling;
10) it, molds, that is, completes the die casting of product.
2. a kind of pressure casting method of auto parts machinery according to claim 1, it is characterised in that:Alterant is that mixing is rotten Agent.
3. a kind of pressure casting method of auto parts machinery according to claim 1, it is characterised in that:Oxygen in the step 4 Gas is the oxygen that pressure is 0.2Mpa~0.75Mpa.
4. the pressure casting method of auto parts machinery according to claim 1 or 2, it is characterised in that:Oxygen in the step 7 It is the oxygen that pressure is 0.03Mpa~0.1Mpa.
5. a kind of pressure casting method of auto parts machinery according to claim 1, it is characterised in that:The mixing alterant is by matter Amount score is 0.06%Sr, carbon hexachloride, manganese chloride form.
CN201710254096.8A 2017-04-18 2017-04-18 A kind of pressure casting method of auto parts machinery Pending CN108728706A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710254096.8A CN108728706A (en) 2017-04-18 2017-04-18 A kind of pressure casting method of auto parts machinery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710254096.8A CN108728706A (en) 2017-04-18 2017-04-18 A kind of pressure casting method of auto parts machinery

Publications (1)

Publication Number Publication Date
CN108728706A true CN108728706A (en) 2018-11-02

Family

ID=63924226

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710254096.8A Pending CN108728706A (en) 2017-04-18 2017-04-18 A kind of pressure casting method of auto parts machinery

Country Status (1)

Country Link
CN (1) CN108728706A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110142388A (en) * 2019-06-11 2019-08-20 天津磊峰实业有限公司 A kind of processing method of automobile parts die cast
CN110592448A (en) * 2019-08-27 2019-12-20 江苏大学 Novel heat-resistant corrosion-resistant 2219 type aluminum alloy and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011208253A (en) * 2010-03-30 2011-10-20 Honda Motor Co Ltd Aluminum die-cast alloy for vehicle material
CN104218307A (en) * 2014-08-20 2014-12-17 菲力克斯电子(宁波)有限公司 Passive high-gain antenna
CN104625006A (en) * 2015-01-30 2015-05-20 柳州市中配橡塑配件制造有限公司 Pressure casting method for auto spare parts
CN106191572A (en) * 2016-06-29 2016-12-07 余姚市弘顺机械有限公司 A kind of auto parts machinery aluminium alloy and the pressure casting method of auto parts machinery

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011208253A (en) * 2010-03-30 2011-10-20 Honda Motor Co Ltd Aluminum die-cast alloy for vehicle material
CN104218307A (en) * 2014-08-20 2014-12-17 菲力克斯电子(宁波)有限公司 Passive high-gain antenna
CN104625006A (en) * 2015-01-30 2015-05-20 柳州市中配橡塑配件制造有限公司 Pressure casting method for auto spare parts
CN106191572A (en) * 2016-06-29 2016-12-07 余姚市弘顺机械有限公司 A kind of auto parts machinery aluminium alloy and the pressure casting method of auto parts machinery

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110142388A (en) * 2019-06-11 2019-08-20 天津磊峰实业有限公司 A kind of processing method of automobile parts die cast
CN110592448A (en) * 2019-08-27 2019-12-20 江苏大学 Novel heat-resistant corrosion-resistant 2219 type aluminum alloy and preparation method thereof
CN110592448B (en) * 2019-08-27 2021-06-22 江苏大学 Heat-resistant corrosion-resistant 2219 type aluminum alloy and preparation method thereof

Similar Documents

Publication Publication Date Title
CN105200272B (en) A kind of extrusion casting method of wrought aluminium alloy lampshade
CN101439396B (en) Counter-pressure casting process for casting parts of door cover
CN104625006B (en) The pressure casting method of auto parts machinery
CN109295351B (en) Die-casting aluminum alloy and preparation method and application thereof
CN103320651A (en) Fine-grained zinc-based alloy for die and preparation process thereof
CN105215314A (en) A kind of auto parts machinery pressure casting method
CN108728706A (en) A kind of pressure casting method of auto parts machinery
CN104745954A (en) Alloy steel and manufacturing method thereof
CN104593645A (en) Aluminum alloy pressure-cast door plank and preparation method thereof
CN104532036A (en) Special aluminum alloy for extrusion casting prepared from regenerated automobile scrap aluminum parts and preparation method thereof
CN106636794A (en) Auto spare part die-casting technique
CN103170600A (en) Aluminum-silicon alloy brake-separating piece semisolid rheological diecasting forming process
CN105108098A (en) Technology for centrifugal casting of high-nitrogen austenitic stainless steel pipe at normal pressure
CN104060155B (en) A kind of HT250 foundry goods and production method thereof
CN110195194A (en) A kind of preparation method of hot die steel
CN105081284A (en) Method for casting outstanding shell of brake booster vacuum pump
CN105081263A (en) Casting method for high-strength corrosion-resisting brake assisting vacuum pump casing
CN109022974A (en) A kind of magnesium alloy motor casing production method and motor housing
CN107552766B (en) Low-pressure casting process for high-strength automobile chassis security aluminum alloy casting
CN106119631B (en) Auto parts and components outer housing die casting die material and its processing method
CN101871068B (en) High-strength high-plasticity magnesium alloy comprising tin and aluminium and preparation method thereof
CN110541095A (en) Preparation method of high-performance aluminum alloy automobile parts
CN104060153B (en) A kind of HT200 foundry goods and production method thereof
KR101744012B1 (en) Method of producing an aluminum alloy for die-casting and aluminum alloy castings using the same
CN111266554B (en) Extrusion casting method of high-strength shrinkage-hole-free aluminum alloy automobile accessory

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20181102

WD01 Invention patent application deemed withdrawn after publication