CN101862813A - Method for manufacturing excavator dipper teeth - Google Patents
Method for manufacturing excavator dipper teeth Download PDFInfo
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- CN101862813A CN101862813A CN 201010224603 CN201010224603A CN101862813A CN 101862813 A CN101862813 A CN 101862813A CN 201010224603 CN201010224603 CN 201010224603 CN 201010224603 A CN201010224603 A CN 201010224603A CN 101862813 A CN101862813 A CN 101862813A
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Abstract
The invention relates to a method for manufacturing excavator dipper teeth, which is technically characterized in that: the excavator dipper teeth are manufactured by a lost foam hollow-shell casting process; and before molten steel is cast, a polystyrene model is burned off by a combustion method, and a cavity like clay sand is obtained; therefore, after the molten steel is cast into the cavity, carbon element generated by gasification of the polystyrene model cannot permeate the surface of the molten steel so as to avoid cast product scrap caused by carbon pick-up of molten steel and slag formation. The method for manufacturing the excavator dipper teeth has the advantages of simple production process, low cost, high efficiency, good product quality and the like.
Description
Technical field
The present invention relates to a kind of manufacture method of excavator bucket teeth.
Background technology
Bucket tooth is to use the part on the excavator-type shovel clamshell excavator front end, when excavator operation, lean on it to excavate material, belongs to wear-resisting consumable accessory.
Existing excavator bucket teeth adopts method manufacturings such as hot investment casting, resin sand casting, forging usually.These methods have its advantage, such as the dimensional accuracy height, any surface finish etc.But its shortcoming is also arranged, such as the manufacturing cost height, production efficiency is low, technological equipment complexity etc.
Summary of the invention
The objective of the invention is to overcome the defective of above-mentioned prior art, provide a kind of production technology simple, cost is low, efficient height, the manufacture method of the excavator bucket teeth of good product quality.
For achieving the above object, the present invention adopts following technical proposals:
A kind of manufacture method of excavator bucket teeth, its technical process is:
A. make the polystyrene model according to the bucket tooth shape;
B. at model surface brushing fireproof coating, dry;
C. model and running gate system are put into sandbox simultaneously, insert dry sand, jolt ramming covers the sandbox top with plastic sheeting;
D. start vavuum pump with the air emptying in the sandbox, make sand mold that certain degree of hardness be arranged;
E. introduce acetylene and oxygen burning-off polystyrene model, stay the die cavity that the fireproof coating ghost forms;
F. inject molten steel by running gate system, molten steel occupies die cavity, gets final product after solidifying;
On model, have riser runner;
Several models can be serially connected on the running gate system.
The present invention adopts the lost foam hollow-shell casting technique to make excavator bucket teeth, before pour steel, the method that adopts burning is with polystyrene model burning-off, acquisition is as the die cavity of clay-bonded sand, can not penetrate into molten steel surface after making molten steel inject die cavity, cause molten steel recarburization, slagging scorification and foundry goods is scrapped because of the carbon that the gasification of polystyrene model produces.The manufacture method of excavator bucket teeth of the present invention, it is simple to have production technology, and cost is low, efficient height, advantages such as good product quality.
Excavator bucket teeth manufacture method of the present invention can be used to produce the bucket tooth that all size does not wait.
Description of drawings
Fig. 1 is the front view of excavator bucket teeth manufacture method of the present invention;
Fig. 2 is the vertical view of excavator bucket teeth manufacture method of the present invention.
The specific embodiment
Excavator bucket teeth manufacture method of the present invention is:
A. according to bucket tooth shape modeling 7, model 7 adopts the polystyrene material manufacturing, and polystyrene material both had been our usually said disappearance mould;
B. with model 7 external coating fireproof coatings, form duricrust after the oven dry;
C. several models 7 are serially connected on the cover running gate system 3, in the sandbox 1 of packing into then, insert dry sand 5, this dry sand 5 also is injected in the cavity 8 and hole 9 of model 7 simultaneously, and jolt ramming covers sandbox 1 top with plastic sheeting 4;
D. start vavuum pump by vacuum pipe 10 with the air emptying in the sandbox 1, make dry sand 5 have certain degree of hardness;
E. introduce acetylene and oxygen burning-off polystyrene model 7, the gas that is produced is discharged from the venthole 6 that is connected with model, stays the die cavity that the fireproof coating ghost forms;
F. put cup 2 above running gate system 3, inject molten steel then, molten steel occupies die cavity, promptly is required bucket tooth after solidifying.
Claims (3)
1. the manufacture method of an excavator bucket teeth, its technical process is:
A. make the polystyrene model according to the bucket tooth shape;
B. at model surface brushing fireproof coating, dry;
C. model and running gate system are put into sandbox simultaneously, insert dry sand, jolt ramming covers the sandbox top with plastic sheeting;
D. start vavuum pump with the air emptying in the sandbox, make sand mold that certain degree of hardness be arranged;
E. introduce acetylene and oxygen burning-off polystyrene model, stay the die cavity that the fireproof coating ghost forms;
F. inject molten steel by running gate system, molten steel occupies die cavity, gets final product after solidifying.
2. according to the manufacture method of the described excavator bucket teeth of claim 1, it is characterized in that: on model, have riser runner.
3. according to the manufacture method of claim 1 or 2 described excavator bucket teeths, it is characterized in that: several models can be serially connected on the running gate system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010224603 CN101862813A (en) | 2010-02-05 | 2010-07-13 | Method for manufacturing excavator dipper teeth |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020109004 | 2010-02-05 | ||
| CN201020109004.0 | 2010-02-05 | ||
| CN 201010224603 CN101862813A (en) | 2010-02-05 | 2010-07-13 | Method for manufacturing excavator dipper teeth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101862813A true CN101862813A (en) | 2010-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010224603 Pending CN101862813A (en) | 2010-02-05 | 2010-07-13 | Method for manufacturing excavator dipper teeth |
Country Status (1)
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| CN (1) | CN101862813A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102366821A (en) * | 2011-10-24 | 2012-03-07 | 大连交通大学 | Green lost foam casting technology |
| CN103357819A (en) * | 2013-07-19 | 2013-10-23 | 宁波吉威熔模铸造有限公司 | Bucket tooth investment casting method |
| CN103862230A (en) * | 2012-12-17 | 2014-06-18 | 黄望业 | Process for manufacturing excavator bucket teeth |
| CN104226898A (en) * | 2012-10-22 | 2014-12-24 | 宁波吉威熔模铸造有限公司 | Investment casting method for bucket tooth |
| CN104259750A (en) * | 2014-08-06 | 2015-01-07 | 泉州恒劲机械有限公司 | Forging technology of bucket teeth |
| CN104325076A (en) * | 2014-06-06 | 2015-02-04 | 北京好利阀业有限公司 | White-mould cast stainless steel technology |
| CN105452572A (en) * | 2013-08-01 | 2016-03-30 | 卡特彼勒公司 | Ground engaging tool assembly |
| CN105458176A (en) * | 2015-12-10 | 2016-04-06 | 桂林中铸机械科技有限公司 | Carbon-free expendable pattern casting method for sodium silicate-bonded sand compounded dry sand moulding cavity |
| CN105598639A (en) * | 2015-02-11 | 2016-05-25 | 吴新良 | Manufacturing method of excavator bucket teeth |
| CN107570649A (en) * | 2016-07-05 | 2018-01-12 | 天津卡斯特机械有限公司 | A kind of excavator bucket teeth forging mold |
| CN109773127A (en) * | 2019-03-19 | 2019-05-21 | 芜湖久弘重工股份有限公司 | A kind of casting and molding method that the wood that disappears combines |
| CN111804872A (en) * | 2020-06-18 | 2020-10-23 | 东风精密铸造有限公司 | Rapid forming method for casting polystyrene coated sand mold shell by investment casting |
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| JPS62179851A (en) * | 1986-01-31 | 1987-08-07 | Toyoda Autom Loom Works Ltd | Production of core for casting |
| JPH08206777A (en) * | 1995-02-03 | 1996-08-13 | Kimura Chuzosho:Kk | Lost foam pattern casting method |
| US6886621B1 (en) * | 2002-08-29 | 2005-05-03 | Brunswick Corp. | Sprue for a lost foam casting system for biasing a directional fill rate from a bottom portion of a metal casting |
| CN101219459A (en) * | 2008-01-25 | 2008-07-16 | 王孝忠 | Method for casting sugar-cane crusher shell with real mould |
| CN101380663A (en) * | 2008-08-19 | 2009-03-11 | 侯马市模范机械制造有限公司 | Precision casting method of lost foam hollow-shell |
| CN101480698A (en) * | 2009-01-14 | 2009-07-15 | 宁波通达精密铸造有限公司 | Non-carburized casting method for lost foam |
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2010
- 2010-07-13 CN CN 201010224603 patent/CN101862813A/en active Pending
Patent Citations (6)
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| JPS62179851A (en) * | 1986-01-31 | 1987-08-07 | Toyoda Autom Loom Works Ltd | Production of core for casting |
| JPH08206777A (en) * | 1995-02-03 | 1996-08-13 | Kimura Chuzosho:Kk | Lost foam pattern casting method |
| US6886621B1 (en) * | 2002-08-29 | 2005-05-03 | Brunswick Corp. | Sprue for a lost foam casting system for biasing a directional fill rate from a bottom portion of a metal casting |
| CN101219459A (en) * | 2008-01-25 | 2008-07-16 | 王孝忠 | Method for casting sugar-cane crusher shell with real mould |
| CN101380663A (en) * | 2008-08-19 | 2009-03-11 | 侯马市模范机械制造有限公司 | Precision casting method of lost foam hollow-shell |
| CN101480698A (en) * | 2009-01-14 | 2009-07-15 | 宁波通达精密铸造有限公司 | Non-carburized casting method for lost foam |
Non-Patent Citations (1)
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| 《铸造技术》 20080930 刘玉满 消失模先烧后浇空壳铸造消除碳缺陷 1241-1243 1-3 第29卷, 第9期 2 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102366821A (en) * | 2011-10-24 | 2012-03-07 | 大连交通大学 | Green lost foam casting technology |
| CN104226898A (en) * | 2012-10-22 | 2014-12-24 | 宁波吉威熔模铸造有限公司 | Investment casting method for bucket tooth |
| CN103862230A (en) * | 2012-12-17 | 2014-06-18 | 黄望业 | Process for manufacturing excavator bucket teeth |
| CN103357819A (en) * | 2013-07-19 | 2013-10-23 | 宁波吉威熔模铸造有限公司 | Bucket tooth investment casting method |
| CN105452572A (en) * | 2013-08-01 | 2016-03-30 | 卡特彼勒公司 | Ground engaging tool assembly |
| CN105452572B (en) * | 2013-08-01 | 2018-10-09 | 卡特彼勒公司 | Ground engagement tool assembly |
| CN104325076A (en) * | 2014-06-06 | 2015-02-04 | 北京好利阀业有限公司 | White-mould cast stainless steel technology |
| CN104259750A (en) * | 2014-08-06 | 2015-01-07 | 泉州恒劲机械有限公司 | Forging technology of bucket teeth |
| CN105598639A (en) * | 2015-02-11 | 2016-05-25 | 吴新良 | Manufacturing method of excavator bucket teeth |
| CN105458176A (en) * | 2015-12-10 | 2016-04-06 | 桂林中铸机械科技有限公司 | Carbon-free expendable pattern casting method for sodium silicate-bonded sand compounded dry sand moulding cavity |
| CN107570649A (en) * | 2016-07-05 | 2018-01-12 | 天津卡斯特机械有限公司 | A kind of excavator bucket teeth forging mold |
| CN109773127A (en) * | 2019-03-19 | 2019-05-21 | 芜湖久弘重工股份有限公司 | A kind of casting and molding method that the wood that disappears combines |
| CN111804872A (en) * | 2020-06-18 | 2020-10-23 | 东风精密铸造有限公司 | Rapid forming method for casting polystyrene coated sand mold shell by investment casting |
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Application publication date: 20101020 |