CN102864393A - High-performance stainless steel hook - Google Patents
High-performance stainless steel hook Download PDFInfo
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- CN102864393A CN102864393A CN 201210388239 CN201210388239A CN102864393A CN 102864393 A CN102864393 A CN 102864393A CN 201210388239 CN201210388239 CN 201210388239 CN 201210388239 A CN201210388239 A CN 201210388239A CN 102864393 A CN102864393 A CN 102864393A
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Abstract
The invention discloses a high-performance stainless steel hook which is manufactured through a powder metallurgy process. The hook comprise, by weight, 7% to 12% of nickel powder, 5% to 10% of chromium powder, 5% to 15% of manganese powder, 3% to 8% of molybdenum powder, 2% to 6% of silicon powder, 4% to 10% of refractory metal carbides, 4% to 85 of plasticizer and the balance being iron powder, wherein the refractory metal carbides are WC or TiC powder. According to the high-performance stainless steel hook, the preparation of components is reasonable, the preparation technology is simple and convenient, and the hook has excellent usage performances on aspects of strength, abrasive resistance, corrosion resistance and the like, so that the usage of the hook is safe and reliable and the application is wide.
Description
Technical field
The present invention relates to a kind of stainless steel suspension hook, it is high to relate in particular to a kind of intensity, and the exsertile high-performance stainless steel suspension hook of wear-resisting, solidity to corrosion belongs to the Stainless Steel Products technical field.
Background technology
Suspender is to hang the device of getting weight in the hoisting machinery, and hanging and getting the most frequently used suspender of work piece 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 lifting machine, can be used as special hanger and use for a long time, also can be used as auxiliary lifting appliance and hang over Interim use on the suspension hook, to improve operating efficiency.The suspender of crawl bulk material is generally jaw grab bucket to be opened/closed, and also available magneticchuck is drawn such as magnetic diffusivity materials such as boringss; Hang the suspender of getting flowable materials commonly used the bucket of Sheng and cage are arranged, generally by canting or take out the mode such as bottom plug and draw off molten steel or chemical solution, draw off the flowable materials such as concrete by opening the cage bottom door.
Suspension hook is integral part important in the suspender, is subject to the downward reactive force that the deadweight of goods and suspender produces in the handling process of goods, so that suspension hook necessity will have enough intensity and rigidity; Simultaneously, have friction between suspension hook and the round-link chain, add that temperature and humidity changes greatly in the Working environment of hook, therefore, suspension hook also need possess good wear-resistant type and solidity to corrosion.To sum up, common irony alloy suspension hook is difficult to satisfy the performance requriements of suspension hook comprehensively, and therefore, the stainless steel suspender arises at the historic moment, but existing stainless steel suspension hook Shortcomings also aspect intensity can not comprehensively be promoted the use of.
Summary of the invention
For the demand, the invention provides a kind of high-performance stainless steel suspension hook, this stainless steel suspension hook becomes assignment system reasonable, and preparation technology is easy, and performance performance excellence aspect intensity, wear resistance and solidity to corrosion is so that the use of suspension hook is safer, reliable.
The present invention is a kind of high-performance stainless steel suspension hook, this stainless steel suspension hook adopts powder metallurgical technique to be prepared, its main component and percentage composition thereof are: nickel powder 7%-12%, chromium powder 5%-10%, manganese powder 5%-15%, molybdenum powder 3%-8%, silica flour 2%-6%, refractory carbide 4%-10%, softening agent 4%-8%, all the other are iron powder, and described refractory metal compound is WC or TiC powder.
In a preferred embodiment of the present invention, the main component of described stainless steel suspension hook and percentage composition thereof are: nickel powder 8%-10%, chromium powder 6%-8%, manganese powder 10%-12%, molybdenum powder 4%-6%, silica flour 3%-5%, refractory carbide 6%-8%, softening agent 5%-7%, all the other are iron powder.
In a preferred embodiment of the present invention, the granularity of described nickel powder, chromium powder, manganese powder, molybdenum powder and silica flour is about the 300-500 order.
In a preferred embodiment of the present invention, the granularity of described refractory carbide is the 600-700 order.
In a preferred embodiment of the present invention, the particle of described iron powder is the 200-300 order, and carbon content is controlled at 0.5%-0.8%.
In a preferred embodiment of the present invention, described softening agent is machine oil or paraffin.
The present invention has disclosed a kind of high-performance stainless steel suspension hook, this stainless steel suspension hook becomes assignment system reasonable, and preparation technology is easy, the excellent use properties of the aspects such as the intensity of suspension hook, wear resistance and solidity to corrosion performance, so that the use of suspension hook is safer, reliable, use more extensive.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments:
Fig. 1 is the structural representation of embodiment of the invention high-performance stainless steel suspension hook;
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that protection scope of the present invention is made more explicit defining.
Fig. 1 is the structural representation of embodiment of the invention high-performance stainless steel suspension hook; This stainless steel suspension hook adopts powder metallurgical technique to be prepared, its main component and percentage composition thereof are: nickel powder 7%-12%, chromium powder 5%-10%, manganese powder 5%-15%, molybdenum powder 3%-8%, silica flour 2%-6%, refractory carbide 4%-10%, softening agent 4%-8%, all the other are iron powder, and described refractory metal compound is WC or TiC powder.
Main component and the percentage composition thereof of the stainless steel suspension hook of the high-performance stainless steel suspension hook of mentioning among the present invention are: nickel powder 8%-10%, chromium powder 6%-8%, manganese powder 10%-12%, molybdenum powder 4%-6%, silica flour 3%-5%, refractory carbide 6%-8%, softening agent 5%-7%, all the other are iron powder; Wherein, the granularity of nickel powder, chromium powder, manganese powder, molybdenum powder and silica flour is about the 300-500 order; The granularity of refractory carbide is the 600-700 order; The particle of iron powder is the 200-300 order, and carbon content is controlled at 0.5%-0.8%; Softening agent is machine oil or paraffin.
Embodiment 1
The preparation method's of the high-performance stainless steel suspension hook that the present invention mentions concrete preparation process is as follows:
A) selection is got the raw materials ready, and the main component of raw material and percentage composition thereof are: nickel powder 8%, chromium powder 6%, manganese powder 10%, molybdenum powder 4%, silica flour 4%, refractory carbide 6%, and softening agent 6%, all the other are iron powder; Raw material is respectively by ball mill grinding, screening, the granularity of the nickel powder that obtains, chromium powder, manganese powder, molybdenum powder and silica flour is about 300 orders, the granularity of refractory carbide is 600 orders, and the particle of iron powder is 200 orders, and carbon content is controlled at 0.6%-0.8% in the iron powder; It is spherical that the particle of powder roughly is; Softening agent is selected clorafin 70, and granularity is about 100 orders; The refractory metal compound is selected WC powder;
B) batch mixing, mixing equipment is selected high energy ball mill, and its process of lapping is as follows: at first, grind the compound of nickel powder, chromium powder, refractory carbide and molybdenum powder, milling time is controlled at 7 hours, and the cylinder revolution is set to 40 rev/mins; Then, add silica flour, iron powder and softening agent, the time of again grinding is controlled at 3 hours, and the cylinder revolution is set to 20 rev/mins;
C) warm compaction process is adopted in compression moulding, and preparation process comprises filling, compacting and the demoulding; Make before filling with lubricator to reduce the frictional force between powder and the die wall, reduce the pressure-losses when filling, lubricant can be selected fatty acid calcium, polyvinyl alcohol, urethane etc.; Temperature in the pressing process is controlled at 130 ℃, and pressure is 220MPa;
D) high temperature sintering, agglomerating plant protective atmosphere sintering oven, methane and propane are selected in combustion gas, and sintering temperature is controlled at 1200 ℃, and sintering time is 9 hours; Behind the sintering, suspension hook density reachable 7.2g.cm
E) aftertreatment, postprocessing working procedures comprise finishing, quenching, tempering and immersion oil; Wherein, quenching temperature is controlled at 750 ℃-760 ℃, and the type of cooling is oil cooling; Tempering temperature is controlled at 220 ℃-240 ℃, and the type of cooling is slow cooling in the stove.
Embodiment 2
The preparation method's of the high-performance stainless steel suspension hook that the present invention mentions concrete preparation process is as follows:
A) selection is got the raw materials ready, and the main component of raw material and percentage composition thereof are: nickel powder 9%, chromium powder 7%, manganese powder 8%, molybdenum powder 4%, silica flour 5%, refractory carbide 7%, and softening agent 7%, all the other are iron powder; Raw material is respectively by ball mill grinding, screening, the granularity of the nickel powder that obtains, chromium powder, manganese powder, molybdenum powder and silica flour is about 350 orders, the granularity of refractory carbide is 650 orders, and the particle of iron powder is 250 orders, and carbon content is controlled at 0.6%-0.7% in the iron powder; It is spherical that the particle of powder roughly is; Softening agent is selected clorafin 70, and granularity is about 100 orders; The refractory metal compound is selected the TiC powder;
B) batch mixing, mixing equipment is selected high energy ball mill, and its process of lapping is as follows: at first, grind the compound of nickel powder, chromium powder, refractory carbide and molybdenum powder, milling time is controlled at 8 hours, and the cylinder revolution is set to 40 rev/mins; Then, add silica flour, iron powder and softening agent, the time of again grinding is controlled at 4 hours, and the cylinder revolution is set to 20 rev/mins;
C) warm compaction process is adopted in compression moulding, and preparation process comprises filling, compacting and the demoulding; Make before filling with lubricator to reduce the frictional force between powder and the die wall, reduce the pressure-losses when filling, lubricant can be selected fatty acid calcium, polyvinyl alcohol, urethane etc.; Temperature in the pressing process is controlled at 140 ℃, and pressure is 240MPa;
D) high temperature sintering, agglomerating plant protective atmosphere sintering oven, methane and propane are selected in combustion gas, and sintering temperature is controlled at 1300 ℃, and sintering time is 8 hours; Behind the sintering, suspension hook density reachable 7.3g.cm
E) aftertreatment, postprocessing working procedures comprise finishing, quenching, tempering and immersion oil; Wherein, quenching temperature is controlled at 780 ℃, and the type of cooling is oil cooling; Tempering temperature is controlled at 240 ℃-260 ℃, and the type of cooling is slow cooling in the stove.
The present invention has disclosed a kind of high-performance round-link chain, be characterized in: this stainless steel suspension hook becomes assignment system reasonable, and preparation technology is easy, the excellent use properties of the aspects such as the intensity of suspension hook, wear resistance and solidity to corrosion performance, so that the use of suspension hook is safer, reliable, use more extensive.
The above; it only is the specific embodiment of the present invention; but protection scope of the present invention is not limited to this; any those of ordinary skill in the art are in the disclosed technical scope of the present invention; 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 (6)
1. high-performance stainless steel suspension hook, it is characterized in that, this stainless steel suspension hook adopts powder metallurgical technique to be prepared, its main component and percentage composition thereof are: nickel powder 7%-12%, chromium powder 5%-10%, manganese powder 5%-15%, molybdenum powder 3%-8%, silica flour 2%-6%, refractory carbide 4%-10%, softening agent 4%-8%, all the other are iron powder, and described refractory metal compound is WC or TiC powder.
2. high-performance stainless steel suspension hook according to claim 1, it is characterized in that, the main component of described stainless steel suspension hook and percentage composition thereof are: nickel powder 8%-10%, chromium powder 6%-8%, manganese powder 10%-12%, molybdenum powder 4%-6%, silica flour 3%-5%, refractory carbide 6%-8%, softening agent 5%-7%, all the other are iron powder.
3. high-performance stainless steel suspension hook according to claim 1 is characterized in that, the granularity of described nickel powder, chromium powder, manganese powder, molybdenum powder and silica flour is about the 300-500 order.
4. high-performance stainless steel suspension hook according to claim 1 is characterized in that, the granularity of described refractory carbide is the 600-700 order.
5. high-performance stainless steel suspension hook according to claim 1 is characterized in that, the particle of described iron powder is the 200-300 order, and carbon content is controlled at 0.5%-0.8%.
6. high-performance stainless steel suspension hook according to claim 1 is characterized in that, described softening agent is machine oil or paraffin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210388239 CN102864393A (en) | 2012-10-15 | 2012-10-15 | High-performance stainless steel hook |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210388239 CN102864393A (en) | 2012-10-15 | 2012-10-15 | High-performance stainless steel hook |
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| CN102864393A true CN102864393A (en) | 2013-01-09 |
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| CN 201210388239 Pending CN102864393A (en) | 2012-10-15 | 2012-10-15 | High-performance stainless steel hook |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017125492A1 (en) * | 2016-01-20 | 2017-07-27 | Intelprop S.A. | Pivoting lifting ring for lifting loads |
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2012
- 2012-10-15 CN CN 201210388239 patent/CN102864393A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017125492A1 (en) * | 2016-01-20 | 2017-07-27 | Intelprop S.A. | Pivoting lifting ring for lifting loads |
| LU92951B1 (en) * | 2016-01-20 | 2017-08-07 | Intelprop S A | Swivel lifting point for lifting loads |
| US10421644B2 (en) | 2016-01-20 | 2019-09-24 | Intelprop S.A. | Pivoting lifting ring for lifting loads |
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Application publication date: 20130109 |