CN110202116A - Die casting barrel production method - Google Patents
Die casting barrel production method Download PDFInfo
- Publication number
- CN110202116A CN110202116A CN201910648456.1A CN201910648456A CN110202116A CN 110202116 A CN110202116 A CN 110202116A CN 201910648456 A CN201910648456 A CN 201910648456A CN 110202116 A CN110202116 A CN 110202116A
- Authority
- CN
- China
- Prior art keywords
- housing
- inner cylinder
- die casting
- barrel
- production method
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/30—Accessories for supplying molten metal, e.g. in rations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- 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
-
- 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
- C21D1/26—Methods of annealing
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The present invention relates to Die Casting technical field more particularly to a kind of methods for making die casting barrel.To guarantee that circulating water leakage problem occurs in the cooling structure of barrel, the present invention proposes a kind of die casting barrel production method, the die casting barrel production method includes the following steps: using die steel material processing and manufacturing housing and inner cylinder, the internal diameter of the housing is d1, the outer diameter of the inner cylinder is D1, and the value range of D1-d1 is 0.25mm-0.35mm；The housing is first heated to 600 DEG C -650 DEG C, then the housing is assembled on the inner cylinder and is connected to inlet and outlet on the outer set with the cooling duct on the inner cylinder.The die casting barrel made of die casting of the present invention barrel production method, the inner wall of housing are bonded completely with the outer wall of inner cylinder, and can avoid, which there are problems that between housing and inner cylinder, contacts gap and circulating water leakage occurs, and then guarantees the cooling effect of barrel.
Description
Technical field
The present invention relates to Die Casting technical field more particularly to a kind of methods for making die casting barrel.
Background technique
In Die Casting, usually first die casting is poured into barrel with molten aluminum, then passes through die casting machine piston for barrel
In molten aluminum be quickly pushed into mold, to complete Die Casting.In addition, in process of production, due to being equipped with height in barrel
Warm molten aluminum, and friction generates heat in the inner wall repetition that molten aluminum is pushed into Shi Huiyu barrel in mold for die casting machine piston, therefore, is
Guarantee the service life of barrel, need to be arranged in the inside of barrel and be able to bear the cooling structure of 5-8kg cyclic hydrostatic pressure.
As shown in Figure 1, the barrel in Die Casting technical field includes housing 1 and inner cylinder 2, the cooling structure inside barrel
Including the import 11 and outlet 12 that are located on housing 1 and the cooling duct 21 on inner cylinder 2, and cooling duct 21 is being assembled
It is connected to after the completion with import 11 and outlet 12.
Currently, being usually to be after being assembled together housing 1 and inner cylinder 2 when manufacturing barrel, welding technique is recycled
To between housing 1 and inner cylinder 2 gap and edge carry out repair welding, occur in cooling procedure to avoid the cooling structure in barrel
The problem of circulating water leakage, influences the cooling effect of barrel.But barrel manufactured in this way does not ensure that 100% will not send out
Raw food but uses the problem of circulating water leakage, and appearance has crator, influences the service life of barrel.
Summary of the invention
To guarantee that circulating water leakage problem occurs in the cooling structure of barrel, the present invention proposes a kind of die casting barrel production side
Method, the die casting barrel production method include the following steps:
Step S1: using die steel material processing and manufacturing housing and inner cylinder, the internal diameter of the housing is d1, the inner cylinder
Outer diameter is D1, and the value range of D1-d1 is 0.25mm-0.35mm；
Step S2: the housing is first heated to 600 DEG C -650 DEG C, then the housing is assembled on the inner cylinder and is made
Inlet and outlet is connected to the cooling duct on the inner cylinder on the outer set.
When making die casting barrel with barrel production method using die casting of the present invention, the internal diameter of housing is first made in processing
It less than the outer diameter of inner cylinder, is assembled on inner cylinder after then heating housing, natural cooling is recycled to make the inner wall and inner cylinder of housing
Outer wall be bonded completely.In this way, the lesser housing of internal diameter can be made to be nested on the biggish inner cylinder of outer diameter using thermal expansion and contraction principle,
Simultaneously because the outer diameter of inner cylinder is greater than the internal diameter of housing, after housing is nested on the inner cylinder, the inner wall of housing and the outer wall of inner cylinder
Fitting completely, can avoid, which there are problems that between housing and inner cylinder, contacts gap and circulating water leakage occurs, and then guarantees barrel
Cooling effect.In addition, making die casting barrel using die casting of the present invention barrel production method, it is nested on the inner cylinder by housing
Afterwards, natural cooling is only needed, repair welding is not necessarily to, production process is reduced, and it is easy to make, and crator is not present, it can avoid because existing
Crator and the service life for influencing barrel.
Preferably, in the step S1, the hardness of the housing and the inner cylinder is improved using quenching and annealing process,
The hardness number HRC of the housing and the inner cylinder is set to be at least 50 °.In this way, material can be effectively improved when making die casting barrel
The hardness of cylinder, and then can effectively extend the service life of barrel.Further, the value of the D1-d1 is 0.30mm.In this way,
When being assembled, it can either guarantee that housing can be nested on inner cylinder after heating expansion, and the inner wall of housing can be made to exist
Natural cooling can be fitted in completely on the outer wall of inner cylinder after shrinking, and guaranteed the leakproofness of cooling structure, avoided in cooling structure
Circulating water for cooling leak.It is further preferred that the rough surface of the outer wall of the inner wall of the housing and the inner cylinder
Ra is spent below 0.6.In this way, can effectively reduce frictional resistance when assembly when being assembled, it is convenient for assembly.
Preferably, in the step S2, the housing is heated using industrial furnace.In this way, using industrial furnace pair
Housing is heated, and can not only guarantee heating effect, but also conveniently completes for housing taking-up to be assembled on inner cylinder in heating, reduces material
The manufacture difficulty of cylinder.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of barrel.
Specific embodiment
In the following, die casting of the present invention is described in detail with barrel production method, the specific steps are as follows:
Firstly, die steel material is processed into housing and inner cylinder using machining mode, the internal diameter for the housing being processed into is
D1, the outer diameter of inner cylinder is D1, and the value range of D1-d1 is 0.25mm-0.35mm.Preferably, it after the completion of machining, uses
Quenching and annealing process improve the hardness of housing and inner cylinder, specifically, the hardness number HRC of housing and inner cylinder is made to be at least 50 °.This
Sample can effectively improve the hardness of barrel, and then can effectively extend the service life of barrel when making die casting barrel.It is preferred that
Ground, the value of D1-d1 are 0.30mm.In this way, it is interior can either to guarantee that housing can be nested with after heating expansion when being assembled
On cylinder, and on the outer wall that can make the inner wall of housing that can be fitted in inner cylinder completely after natural cooling contraction, guarantee cooling
The leakproofness of structure avoids the circulating water for cooling in cooling structure from leaking.Preferably, when being machined out, processing
The surface roughness Ra of the outer wall of the inner wall and inner cylinder of the housing of formation is below 0.6.In this way, when being assembled, it can be effective
Frictional resistance when assembly is reduced, it is convenient for assembly.
Secondly, first housing is heated to 600 DEG C -650 DEG C, then housing is assembled on inner cylinder to and is made import on outer set and is gone out
Mouth is connected to the cooling duct on the inner cylinder.Preferably, it is externally covered and is processed using industrial furnace.In this way, using industrial furnace
Externally set is heated, and can not only guarantee heating effect, but also conveniently completes for housing taking-up to be assembled on inner cylinder in heating, is reduced
The manufacture difficulty of barrel.
When making die casting barrel with barrel production method using die casting of the present invention, the internal diameter of housing is first made in processing
It less than the outer diameter of inner cylinder, is assembled on inner cylinder after then heating housing, natural cooling is recycled to make the inner wall and inner cylinder of housing
Outer wall be bonded completely.In this way, the lesser housing of internal diameter can be made to be nested on the biggish inner cylinder of outer diameter using thermal expansion and contraction principle,
Simultaneously because the outer diameter of inner cylinder is greater than the internal diameter of housing, after housing is nested on the inner cylinder, the inner wall of housing and the outer wall of inner cylinder
Fitting completely, can avoid, which there are problems that between housing and inner cylinder, contacts gap and circulating water leakage occurs, and then guarantees barrel
Cooling effect.In addition, making die casting barrel using die casting of the present invention barrel production method, it is nested on the inner cylinder by housing
Afterwards, natural cooling is only needed, repair welding is not necessarily to, production process is reduced, and it is easy to make, and crator is not present, it can avoid because existing
Crator and the service life for influencing barrel.
Claims (5)
1. a kind of die casting barrel production method, which is characterized in that the die casting barrel production method includes the following steps:
Step S1: using die steel material processing and manufacturing housing and inner cylinder, the internal diameter of the housing is d1, the outer diameter of the inner cylinder
For D1, and the value range of D1-d1 is 0.25mm-0.35mm；
Step S2: being first heated to 600 DEG C -650 DEG C for the housing, then the housing is assembled on the inner cylinder and is made described
Inlet and outlet is connected to the cooling duct on the inner cylinder on outer set.
2. die casting according to claim 1 barrel production method, which is characterized in that in the step S1, using quenching
Fire and annealing process improve the hardness of the housing and the inner cylinder, make the hardness number HRC of the housing and the inner cylinder at least
It is 50 °.
3. die casting according to claim 2 barrel production method, which is characterized in that the value of the D1-d1 is
0.30mm。
4. die casting according to claim 2 barrel production method, which is characterized in that the inner wall of the housing and described interior
The surface roughness Ra of the outer wall of cylinder is below 0.6.
5. the barrel production method of die casting described in any one of -3 according to claim 1, which is characterized in that in the step
In S2, the housing is heated using industrial furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910648456.1A CN110202116A (en) | 2019-07-18 | 2019-07-18 | Die casting barrel production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910648456.1A CN110202116A (en) | 2019-07-18 | 2019-07-18 | Die casting barrel production method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110202116A true CN110202116A (en) | 2019-09-06 |
Family
ID=67797692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910648456.1A Pending CN110202116A (en) | 2019-07-18 | 2019-07-18 | Die casting barrel production method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110202116A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56109150A (en) * | 1980-01-31 | 1981-08-29 | Toshiba Mach Co Ltd | Cold chamber type die casting machine |
| CN1117717A (en) * | 1993-02-16 | 1996-02-28 | A.H.铸造设备有限公司 | Ceramic lined shot sleeve |
| DE19908392C2 (en) * | 1999-02-26 | 2001-06-07 | Ortmann Druckgiestechnik Gmbh | Casting chamber, in particular for the die casting of metals |
| US6378597B1 (en) * | 2000-09-15 | 2002-04-30 | Investors Holding Group | Shot sleeve assembly |
| CN201776421U (en) * | 2010-08-04 | 2011-03-30 | 徐州徐航压铸有限公司 | Novel cooling water jacket of compression chamber of die casting machine |
| CN202224626U (en) * | 2011-09-30 | 2012-05-23 | 重庆大江美利信压铸有限责任公司 | Integrated pressure chamber of die-casting machine |
| CN106363355A (en) * | 2016-09-28 | 2017-02-01 | 东莞华程金属科技有限公司 | Machining technique of sprue bush provided with water delivery ring, and sprue bush |
-
2019
- 2019-07-18 CN CN201910648456.1A patent/CN110202116A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56109150A (en) * | 1980-01-31 | 1981-08-29 | Toshiba Mach Co Ltd | Cold chamber type die casting machine |
| CN1117717A (en) * | 1993-02-16 | 1996-02-28 | A.H.铸造设备有限公司 | Ceramic lined shot sleeve |
| DE19908392C2 (en) * | 1999-02-26 | 2001-06-07 | Ortmann Druckgiestechnik Gmbh | Casting chamber, in particular for the die casting of metals |
| US6378597B1 (en) * | 2000-09-15 | 2002-04-30 | Investors Holding Group | Shot sleeve assembly |
| CN201776421U (en) * | 2010-08-04 | 2011-03-30 | 徐州徐航压铸有限公司 | Novel cooling water jacket of compression chamber of die casting machine |
| CN202224626U (en) * | 2011-09-30 | 2012-05-23 | 重庆大江美利信压铸有限责任公司 | Integrated pressure chamber of die-casting machine |
| CN106363355A (en) * | 2016-09-28 | 2017-02-01 | 东莞华程金属科技有限公司 | Machining technique of sprue bush provided with water delivery ring, and sprue bush |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190906 |