CN102641991A - Production method of colliding head shell of tramcar buffer and product - Google Patents
Production method of colliding head shell of tramcar buffer and product Download PDFInfo
- Publication number
- CN102641991A CN102641991A CN2012101576283A CN201210157628A CN102641991A CN 102641991 A CN102641991 A CN 102641991A CN 2012101576283 A CN2012101576283 A CN 2012101576283A CN 201210157628 A CN201210157628 A CN 201210157628A CN 102641991 A CN102641991 A CN 102641991A
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- buffer
- molten steel
- tramcar
- shell
- head shell
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Abstract
The invention discloses a production method of a colliding head shell of a tramcar buffer. The production method is characterized by comprising the following steps: processing aluminum alloy into a metal foam molding mold in the shape of the colliding head shell of the tramcar buffer, injecting polystyrene resin particles into a mold cavity, heating and expanding the polystyrene resin particles to make the polystyrene resin particles mutually melt, opening the mold to take a white foam product out when the pressure reaches 5 kg, putting the white foam product into vibration filling sand of a sand box, pouring 1600 DEC G molten steel through a water port, filling the burnt empty part of the white foam with the molten steel after the white foam product is burnt by the molten steel, starting a vacuum pump communicated with the sand box, vacuumizing the sand box till the pressure is 0.4Pa, cooling the sand box to strip the die, and cleaning the sand to obtain the weldless colliding head shell of the tramcar buffer. The colliding head shell of the tramcar buffer is molded without gas cutting, bending and heating molding, and welding, so that the production cost is reduced by 60%, the impact resistance is enhanced by 50%, and the service life is prolonged from one year to four years.
Description
Technical field
Wataru present invention and one kinds of buffers meet tub shell, in particular to a tub shell buffer meet production methods and products.
Background technology
Domestic shipping coal in a mine tub preclude the use of the tramcar fleet of transport between the tub and the tub on the downhill in transit when a collision, in order to alleviate the impact necessary to install buffers, while the buffer is a buffer devices meet housing and high-strength rubber.At present, the meet and discuss producer of domestic production mine car of buffer becomes piece with the steel plate gas cutting, and type is made in heating behind the bending, is welded into housing again.This processing method exists the cost height, welding is prone to produce slag inclusion, welds defectives such as not passing through, leak weldering, makes the housing quality defects.More important be the buffer of welding meet and discuss shell when collision stress concentrate in welded joints, through repeatedly collision, weld seam will burst distortion and can not use; At this moment will produce mine car can't cushion; Cause driving, security incident takes place, cause the massive losses of the person and property.
Summary of the invention
The objective of the invention is to low, the no weld seam of a kind of processing cost to be provided, do not produce weld stress is concentrated, increase service life greatly mine car buffer the meet and discuss production method and the product of shell for the deficiency that overcomes prior art.Its concrete grammar is:
(1) aluminium alloy is processed into the meet and discuss metal foam mould of hull shape shape of mine car buffer;
(2) the polystyrene resin bead is injected in the mold cavity, after adding thermal expansion and merging mutually, when pressure reached 5 kilograms, white froth pulp was taken out in die sinking;
(3) white froth pulp is put into the sandbox vibration and tamp molding sand;
(4) pouring temperature is 1600 ℃ a molten steel from the mouth of a river, molten steel with white froth pulp scaling loss after, molten steel is inserted the room of white foam scaling loss;
(5) start the vavuum pump that is communicated with sandbox, be evacuated to 0.4Pa;
(6) the cooling back demoulding, the mine car buffer that sand removal is not the welded shell of meeting and discussing.
Said p-poly-phenyl vinyl bead heating, its heating-up temperature is 160 ℃.
From the production method of the present invention can be seen as a lost mold casting preclude the use of this method, to produce the tub buffer meet shell structure as a whole, no soldering is no stress concentration point, the problem no welds burst resistance, impact force increases 50%, based on the detected display, the state of the buffer tub shell meet the impact force of 40 tons, and produced by the method of the invention meet the shell steel tub buffer the impact force up to 60 tons.General welding buffer is met and discussed maximum 1 year of service life of shell, and the cast steel mine car buffer that the inventive method the is produced shell of meeting and discussing can be used 4 years.Simultaneously, since not gas cutting, bending heating is not made type, need not be welded, so production cost has reduced by 60%.Reach low, the no weld seam of processing cost of the present invention fully, do not produced the goal of the invention that weld stress is concentrated, increase service life greatly.
The specific embodiment
Embodiment 1:
(1) aluminium alloy is processed into the meet and discuss metal foam mould of hull shape shape of mine car buffer;
(2) the polystyrene resin bead is injected in the mold cavity, after adding thermal expansion and merging mutually, when pressure reached 5 kilograms, white froth pulp was taken out in die sinking;
(3) white froth pulp is put into the sandbox vibration and tamp molding sand;
(4) pouring temperature is 1600 ℃ a molten steel from the mouth of a river, molten steel with white froth pulp scaling loss after, molten steel is inserted the room of white foam scaling loss;
(5) start the vavuum pump that is communicated with sandbox, be evacuated to 0.4Pa;
(6) the cooling back demoulding, the mine car buffer that sand removal is not the welded shell of meeting and discussing.
Claims (3)
1. the mine car buffer production method of shell of meeting and discussing is characterized in that: follow these steps to carry out:
(1) aluminium alloy is processed into the meet and discuss metal foam mould of hull shape shape of mine car buffer;
(2) the polystyrene resin bead is injected in the mold cavity, after adding thermal expansion and merging mutually, when pressure reached 5 kilograms, white froth pulp was taken out in die sinking;
(3) white froth pulp is put into the sandbox vibration and tamp molding sand;
(4) pouring temperature is 1600 ℃ a molten steel from the mouth of a river, molten steel with white froth pulp scaling loss after, molten steel is inserted the room of white foam scaling loss;
(5) start the vavuum pump that is communicated with sandbox, be evacuated to 0.4Pa;
(6) the cooling back demoulding, the mine car buffer that sand removal is not the welded shell of meeting and discussing.
2. the meet and discuss production method of shell of a kind of mine car buffer according to claim 1, it is characterized in that: said p-poly-phenyl vinyl bead heating, its heating-up temperature is 160 ℃.
3. mine car buffer shell of meeting and discussing is characterized in that: the product of producing by the said method of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101576283A CN102641991A (en) | 2012-05-21 | 2012-05-21 | Production method of colliding head shell of tramcar buffer and product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101576283A CN102641991A (en) | 2012-05-21 | 2012-05-21 | Production method of colliding head shell of tramcar buffer and product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102641991A true CN102641991A (en) | 2012-08-22 |
Family
ID=46655212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101576283A Pending CN102641991A (en) | 2012-05-21 | 2012-05-21 | Production method of colliding head shell of tramcar buffer and product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102641991A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1077146A (en) * | 1992-04-01 | 1993-10-13 | 中国科学院长春光学精密机械研究所 | The casting method of HI-chrome cast iron for grinding balls |
| CN1091342A (en) * | 1992-11-16 | 1994-08-31 | 巴布考克和威尔科斯公司 | The lost foam process that is used for casting stainless steel |
| CN1593812A (en) * | 2004-06-30 | 2005-03-16 | 黄刚 | Method for manufacturing crankcase of automobile engine by negative pressure cavityless casting |
| CN102284679A (en) * | 2011-09-19 | 2011-12-21 | 滁州金诺实业有限公司 | Method for casting engine cylinder cover by using lost foam |
-
2012
- 2012-05-21 CN CN2012101576283A patent/CN102641991A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1077146A (en) * | 1992-04-01 | 1993-10-13 | 中国科学院长春光学精密机械研究所 | The casting method of HI-chrome cast iron for grinding balls |
| CN1091342A (en) * | 1992-11-16 | 1994-08-31 | 巴布考克和威尔科斯公司 | The lost foam process that is used for casting stainless steel |
| CN1593812A (en) * | 2004-06-30 | 2005-03-16 | 黄刚 | Method for manufacturing crankcase of automobile engine by negative pressure cavityless casting |
| CN102284679A (en) * | 2011-09-19 | 2011-12-21 | 滁州金诺实业有限公司 | Method for casting engine cylinder cover by using lost foam |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120822 |