CN102513786A - Preparation method of high-performance round ring chain - Google Patents
Preparation method of high-performance round ring chain Download PDFInfo
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- CN102513786A CN102513786A CN201110395398XA CN201110395398A CN102513786A CN 102513786 A CN102513786 A CN 102513786A CN 201110395398X A CN201110395398X A CN 201110395398XA CN 201110395398 A CN201110395398 A CN 201110395398A CN 102513786 A CN102513786 A CN 102513786A
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Abstract
The invention discloses a preparation method of a high-performance round ring chain. The preparation method comprises the following steps: A) casting a semi-chain ring; b) carrying out thermal treatment on the semi-chain ring; c) welding the round ring chain; d) carrying out stress-relief annealing; and e) carrying out finished product inspection. The preparation method of the high-performance round ring chain, disclosed by the invention is reasonable in working procedure arrangement, simple and convenient in preparation process and moderate in cost; and the prepared round ring chain has the advantages of higher strength, abrasion resistance, corrosion resistance and impact resistance and long service life, so that the allocation and transport of goods is safer and more reliable, and the production process is in order.
Description
Technical field
The present invention relates to a kind of preparation method of round-link chain, relate in particular to the preparation method of the good high-performance round-link chain of a kind of intensity, wearability and corrosion resisting property, belong to the suspender technical field.
Background technology
Suspender is to hang the device of getting goods in the hoisting machinery, and hanging and getting the most frequently used suspender of member article is suspension hook, and relative accessory has suspension ring, hoisting suction cup, clamp and pallet fork etc.Wherein, hoisting suction cup, clamp and pallet fork are used on crane, can be used as special hanger and use for a long time, also can be used as auxiliary suspender and hang over use temporarily on the suspension hook, to improve operating efficiency.The suspender that grasps bulk material is generally jaw grab bucket to be opened/closed, and also available magnechuck is drawn like magnetic conductivity materials such as borings; Hang the suspender of getting flowable materials commonly used the bucket of Sheng and cage are arranged, generally through canting or take out mode such as bottom plug and draw off molten steel or chemical solution, draw off flowable materials such as concrete through opening the cage bottom door.
Round-link chain is a part important in the suspender; In the suspender running, mainly receive the downward active force that the deadweight of pulling force that the suspender head makes progress and goods and suspender produces; Also there are certain friction and collision between the round-link chain simultaneously; Therefore, round-link chain must possess enough intensity, toughness, wearability and impact resistance.If the round-link chain performance deficiencies is easy to accidents causedly, causes damage.
Summary of the invention
To the demand, the invention provides a kind of preparation method of high-performance round-link chain, this preparation method's procedure arrangement is reasonable, is easy to implement, the round-link chain high comprehensive performance that makes, service life is lasting, makes the allocation and transportation of goods safer, reliable.
The present invention is a kind of preparation method of high-performance round-link chain, and this preparation method comprises the steps: a) casting half chain link, b) heat treatment half chain link, the c) welding of round-link chain, d) stress relief annealing, e) product inspection.
In the present invention's one preferred embodiment, in the described step a), half chain link adopts the sand casting process moulding, and its casting technique mainly comprises: sand mold manufacturing, alloy cast, cooling and shaping and the unpacking type of repairing.
In the present invention's one preferred embodiment; Described sand mold adopts machine molding, and the main component of its molding sand and percentage composition thereof are that the content of silica sand 75%-80%, active bentonite 7%-8%, clay 10%-12%, nonactive mud 2%-3% and water is controlled at below 3.5%.
In the present invention's one preferred embodiment, the quick casting of low temperature is adopted in described alloy cast, and its poring rate is controlled at 1-1.2m/min, and pouring temperature is controlled at 1580 ℃-1600 ℃.
In the present invention's one preferred embodiment, in the described step b), the Technology for Heating Processing of half chain link comprises annealing, quenching and temper; Wherein, annealing process adopts full annealing; The quenching mode is an interrupted quenching, oil quenching after the first shrend; Tempering process adopts lonneal.
In the present invention's one preferred embodiment, in the described step c), round-link chain is accomplished welding at UNT-80 high-tensile round-link chain bar flash butt welder, and this flash butt welding welding procedure is made up of preheating, flash of light, upset, operation such as keep, stop.
In the present invention's one preferred embodiment, described preheat temperature is controlled at 820 ℃-860 ℃; Flashing speed is 3-4mm/s, and the maximum of flashing current is 55kA, and upset speed is controlled at 120-140mm/s, and upsetting force is 110-120MPa.
In the present invention's one preferred embodiment, in the described step d), the heating and temperature control that stress relief annealing is handled is at 550 ℃-580 ℃, and temperature retention time is 20-30 minute, the air cooling of coming out of the stove after the slow cooling to 150 ℃.
The present invention has disclosed a kind of preparation method of high-performance round-link chain; This preparation method's procedure arrangement is reasonable, and preparation technology is easy, and cost is moderate; Make round-link chain and have higher intensity, wearability, corrosion resistance and impact resistance; Round-link chain is lasting service life, makes the allocation and transportation of goods safer, reliable, makes production process in good order.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further detailed explanation:
Fig. 1 is the preparation method's of embodiment of the invention high-performance round-link chain process figure.
The specific embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is set forth in detail, thereby protection scope of the present invention is made more explicit defining so that advantage of the present invention and characteristic can be easier to it will be appreciated by those skilled in the art that.
Fig. 1 is the preparation method's of embodiment of the invention high-performance round-link chain process figure; This preparation method comprises the steps: a) casting half chain link, b) heat treatment half chain link, the c) welding of round-link chain, d) stress relief annealing, e) product inspection.
Embodiment
This preparation method's practical implementation step is following:
A) casting half chain link, half chain link adopts the sand casting process moulding, and its casting technique mainly comprises: sand mold manufacturing, alloy cast, cooling and shaping and the unpacking type of repairing;
Sand mold adopts machine molding, and the main component of its molding sand is silica sand, active bentonite, clay, nonactive mud and water; Wherein, the particle mean size of silica sand is 0.12-0.14mm, and content is 75%-80%; The content of active bentonite is controlled at 7%-8%; The main component of clay is a sodium bentonite, and its imvite content is about 60%, and clay content is controlled at 10%-12%; The main component of nonactive mud is dehydration bentonite, coal dust particulate and silicon grain, and its overall control is between 2%-3%; Water content must strictly be controlled, and its content is no more than 3.5%;
The quick casting of low temperature is adopted in the alloy cast, and this method can effectively reduce the degree of oxidation of alloying element, guarantees the comprehensive mechanical property of chain link, and its poring rate is controlled at 1-1.2m/min, and pouring temperature is controlled at 1580 ℃-1600 ℃;
The cooling and shaping mode of foundry goods is an air cooling, can reduce preparation cost, and be 1-2 hour cool time;
Unpack and repair in the type operation, at first, unpacking taking-up half chain link is also simply cleared up; Then, the end face of double chain link is repaiied type and polishing, and this operation is carried out on grinding machine of universal, is used to improve the welding performance of half chain link, for subsequent operation is prepared;
B) heat treatment half chain link for wearability and the impact resistance that improves half chain link, needs that double chain link annealed, quenching and temper; Wherein, annealing process adopts full annealing, and the heating and temperature control of half chain link is at 790 ℃-820 ℃, and temperature retention time is 5-7 hour, the air cooling of coming out of the stove after cooling to the furnace below 550 ℃; Quenching temperature is controlled at 800 ℃-840 ℃, and temperature retention time is 20-25 minute, and the quenching mode is an interrupted quenching, oil quenching after the first shrend; Tempering process adopts lonneal, and this technology is carried out in salt bath furnace, and half chain link is heated to 220 ℃-250 ℃, and tempering time was controlled at 40-50 minute, in order to improve the composite alloying of Mo, reduces the temper brittleness of chain link;
C) UNT-80 high-tensile round-link chain bar flash butt welder is selected in the welding of round-link chain, the welding equipment of round-link chain for use, and this flash butt welding welding procedure is made up of preheating, flash of light, upset, operation such as keep, stop; Wherein, preheat temperature is controlled at 820 ℃-860 ℃; The forming process that flash of light and two operations of upset are plumb joints, flashing speed is 3-4mm/s, and the maximum of flashing current is 55kA, and upset speed is controlled at 120-140mm/s, and upsetting force is 110-120MPa; Keeping, stopping then is to improve the necessary operation of welding performance;
D) stress relief annealing; In order to improve and the overall performance and the size of stable round-link chain, the round-link chain after the welding to be carried out stress relief annealing handle, this heat treated heating and temperature control is at 550 ℃-580 ℃; Temperature retention time is 20-30 minute, the air cooling of coming out of the stove after the slow cooling to 150 ℃;
E) product inspection.
The present invention has disclosed a kind of preparation method of high-performance round-link chain; Be characterized in: this preparation method's procedure arrangement is reasonable, and preparation technology is easy, and cost is moderate; Make round-link chain and have higher intensity, wearability, corrosion resistance and impact resistance; Round-link chain is lasting service life, makes the allocation and transportation of goods safer, reliable, makes production process in good order.
The above; Be merely the specific embodiment of the present invention; But protection scope of the present invention is not limited thereto; Any those of ordinary skill in the art are in the technical scope that the present invention disclosed, and variation or the replacement that can expect without creative work all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.
Claims (8)
1. the preparation method of a high-performance round-link chain is characterized in that, this preparation method comprises the steps: a) casting half chain link, b) heat treatment half chain link, the c) welding of round-link chain, d) stress relief annealing, e) product inspection.
2. the preparation method of high-performance round-link chain according to claim 1 is characterized in that, in the described step a), half chain link adopts the sand casting process moulding, and its casting technique mainly comprises: sand mold manufacturing, alloy cast, cooling and shaping and the unpacking type of repairing.
3. the preparation method of high-performance round-link chain according to claim 2; It is characterized in that; Described sand mold adopts machine molding, and the main component of its molding sand and percentage composition thereof are that the content of silica sand 75%-80%, active bentonite 7%-8%, clay 10%-12%, nonactive mud 2%-3% and water is controlled at below 3.5%.
4. the preparation method of high-performance round-link chain according to claim 2 is characterized in that, the quick casting of low temperature is adopted in described alloy cast, and its poring rate is controlled at 1-1.2m/min, and pouring temperature is controlled at 1580 ℃-1600 ℃.
5. the preparation method of high-performance round-link chain according to claim 1 is characterized in that, in the described step b), the Technology for Heating Processing of half chain link comprises annealing, quenching and temper; Wherein, annealing process adopts full annealing; The quenching mode is an interrupted quenching, oil quenching after the first shrend; Tempering process adopts lonneal.
6. the preparation method of high-performance round-link chain according to claim 1; It is characterized in that; In the described step c), round-link chain is accomplished welding at UNT-80 high-tensile round-link chain bar flash butt welder, and this flash butt welding welding procedure is made up of preheating, flash of light, upset, operation such as keep, stop.
7. the preparation method of high-performance round-link chain according to claim 6 is characterized in that, described preheat temperature is controlled at 820 ℃-860 ℃; Flashing speed is 3-4mm/s, and the maximum of flashing current is 55kA, and upset speed is controlled at 120-140mm/s, and upsetting force is 110-120MPa.
8. the preparation method of high-performance round-link chain according to claim 6 is characterized in that, in the described step d), the heating and temperature control that stress relief annealing is handled is at 550 ℃-580 ℃, and temperature retention time is 20-30 minute, the air cooling of coming out of the stove after the slow cooling to 150 ℃.
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| CN201110395398XA CN102513786A (en) | 2011-12-03 | 2011-12-03 | Preparation method of high-performance round ring chain |
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| CN201110395398XA CN102513786A (en) | 2011-12-03 | 2011-12-03 | Preparation method of high-performance round ring chain |
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| CN102513786A true CN102513786A (en) | 2012-06-27 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102649208A (en) * | 2012-04-01 | 2012-08-29 | 重庆乾合科技有限公司 | Continuous welding chain automatic turn-over |
| CN105643208A (en) * | 2016-01-18 | 2016-06-08 | 南通洋口对外贸易有限公司 | Production process suitable for high-strength round link chain under marine environment |
| CN111687605A (en) * | 2020-06-22 | 2020-09-22 | 四川华都核设备制造有限公司 | Preparation method of connecting ring chain for control rod system and connecting ring chain |
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| GB656639A (en) * | 1949-02-07 | 1951-08-29 | Humphrey George Taylor | Improvements in, and in the manufacture of, studded chain links |
| US4279122A (en) * | 1979-09-19 | 1981-07-21 | Dresser Industries, Inc. | Method of making chain |
| CN1173150A (en) * | 1994-11-30 | 1998-02-11 | 克韦尔纳有限公司 | Chain link and method for manufacture thereof |
| CN1233548A (en) * | 1999-04-02 | 1999-11-03 | 上海康适达轮圈有限公司 | Flash butt welding technology for aluminium alloy wheel rim of automobile and motor cycle |
| CN1879988A (en) * | 2005-06-15 | 2006-12-20 | 杨宝坤 | Mine car coupling chain production method |
| CN101468382A (en) * | 2007-12-24 | 2009-07-01 | 西峡县内燃机进排气管有限责任公司 | Mould sand |
| CN101918159A (en) * | 2007-12-20 | 2010-12-15 | 佩瓦格奥地利有限公司 | Method for producing welded round and profile chains, chain links for a round or profile chain and round or profile chain made of chain links of said kind |
| WO2011052562A1 (en) * | 2009-10-30 | 2011-05-05 | 新日本製鐵株式会社 | Flash-butt welding method for rail steel |
| CN102205482A (en) * | 2011-05-13 | 2011-10-05 | 山东良达发兴圆环链有限公司 | Method for producing round-link chain |
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2011
- 2011-12-03 CN CN201110395398XA patent/CN102513786A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB656639A (en) * | 1949-02-07 | 1951-08-29 | Humphrey George Taylor | Improvements in, and in the manufacture of, studded chain links |
| US4279122A (en) * | 1979-09-19 | 1981-07-21 | Dresser Industries, Inc. | Method of making chain |
| CN1173150A (en) * | 1994-11-30 | 1998-02-11 | 克韦尔纳有限公司 | Chain link and method for manufacture thereof |
| CN1233548A (en) * | 1999-04-02 | 1999-11-03 | 上海康适达轮圈有限公司 | Flash butt welding technology for aluminium alloy wheel rim of automobile and motor cycle |
| CN1879988A (en) * | 2005-06-15 | 2006-12-20 | 杨宝坤 | Mine car coupling chain production method |
| CN101918159A (en) * | 2007-12-20 | 2010-12-15 | 佩瓦格奥地利有限公司 | Method for producing welded round and profile chains, chain links for a round or profile chain and round or profile chain made of chain links of said kind |
| CN101468382A (en) * | 2007-12-24 | 2009-07-01 | 西峡县内燃机进排气管有限责任公司 | Mould sand |
| WO2011052562A1 (en) * | 2009-10-30 | 2011-05-05 | 新日本製鐵株式会社 | Flash-butt welding method for rail steel |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102649208A (en) * | 2012-04-01 | 2012-08-29 | 重庆乾合科技有限公司 | Continuous welding chain automatic turn-over |
| CN105643208A (en) * | 2016-01-18 | 2016-06-08 | 南通洋口对外贸易有限公司 | Production process suitable for high-strength round link chain under marine environment |
| CN105643208B (en) * | 2016-01-18 | 2019-03-12 | 南通洋口对外贸易有限公司 | A kind of production technology suitable for the high-tensile round-link chain under marine environment |
| CN111687605A (en) * | 2020-06-22 | 2020-09-22 | 四川华都核设备制造有限公司 | Preparation method of connecting ring chain for control rod system and connecting ring chain |
| CN111687605B (en) * | 2020-06-22 | 2021-09-07 | 四川华都核设备制造有限公司 | Preparation method of connecting ring chain for control rod system and connecting ring chain |
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Application publication date: 20120627 |