CN110340617A - A kind of anti-corrosion and high strength hex bolts production technology - Google Patents
A kind of anti-corrosion and high strength hex bolts production technology Download PDFInfo
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- CN110340617A CN110340617A CN201910632196.9A CN201910632196A CN110340617A CN 110340617 A CN110340617 A CN 110340617A CN 201910632196 A CN201910632196 A CN 201910632196A CN 110340617 A CN110340617 A CN 110340617A
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- bolt
- production technology
- corrosion
- high strength
- hex bolts
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- 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
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Abstract
The invention discloses a kind of anti-corrosion and high strength hex bolts production technology, comprise the following steps that step 1, embryo material are chosen；Step 2, cold-heading molding；Step 3, cutting turning；Step 4, turning；Step 5, carburizing；Step 6, lonneal；Step 7, thread rolling；Step 8, cleaning；Step 9, colouring；Step 10, packaging and warehousing, the present invention is by doing modifications and adaptations to prior art process, increase carburization step in process of production, so that forming carburized layer in the outer surface of bolt, to increase the hardness of bolt surface, as long as the production technology carries out primary heating process to bolt, reduce energy consumption, cost is saved, while bolt strength is higher, toughness is more preferable, corrosion resistance is stronger, the weather environment that can adapt to severe complexity, applies and is not easy to crack on shaking biggish equipment, longer life expectancy.
Description
Technical field
The present invention relates to technical field of bolt processing, in particular to a kind of anti-corrosion and high strength hex bolts production technology.
Background technique
Bolt is the physics and mathematical principle of the inclined-plane circular rotating and frictional force using object, is fastened by easy stages
The tool of implements parts.Bolt is the general saying of fastener, daily pet phrase.Bolt is work indispensable in daily life
Industry necessity: the minimum bolt that such as camera, glasses, clock and watch, electronics use；TV, electric product, musical instrument, furniture etc.
General bolt；Large-sized bolt, nut are then used as engineering, building, bridge；Traffic tool, aircraft, electric car, automobile etc.
Then it is used in combination for big stove bolt.Bolt industrially bears vital task.
A kind of existing hex bolts, head be turret head, be both needed to process in the top and bottom of turret head it is angled,
The technique of bolt is constantly improved, and the performance of bolt also constantly changes in follow-up demand, and modern industry wants bolt
Ask higher and higher, especially to the intensity requirement of bolt, the intensity of bolt traditional at present cannot good meet demand, bolt
It is easy to loosen and crack in the equipment of vibration.
Summary of the invention
The object of the present invention is to provide a kind of this bolt that anti-corrosion and high strength hex bolts production technology manufactures tools
The feature for having intensity high, wear-resisting.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of anti-corrosion and high strength hex bolts production technology, comprises the following steps that
Step 1, embryo material are chosen, and selection medium carbon alloy steel is raw material, to choose different specification blanks according to design；
Step 2, cold-heading molding, cold-heading goes out head and the bar portion of bolt blank in the punching of two moulds two or double blow solid die cold header；
Step 3, cutting turning, by the head cutter of bolt blank at hexagon；
Step 4, turning carry out turning to the resulting bolt blank of step 3, remove the burr and overlap on bolt blank head, and
By the corner turning camber on head；
Step 4 gained bolt blank is placed in converter by step 5, carburizing, and converter carries out carburizing after being raised to 900 degree from room temperature, is seeped
The carbon time 2-4 hours, so that the surface of bolt blank forms carburized layer；
Step 6, lonneal then carry out lonneal to bolt blank, are finally cooled down；
Bar portion is rubbed screw thread with thread rolling machine by step 7, thread rolling；
Step 8, cleaning, clean phosphating coat with alkaline solution；
Step 9, colouring, in one layer of anti-oxidation wearing layer of surface coating of bolt；
Step 10, packaging and warehousing.
Preferably, the continuous converter of the converter model SLQ260.
Preferably, further including cleaning to nut embryo material outer surface before the step 4, greasy dirt is removed.
Preferably, the tempering temperature control is at 300~310 DEG C, soaking time is 80~90 minutes, and tempering is completed
Afterwards, it is water-cooled.
Preferably, the anti-oxidation wearing layer is the anti-oxidation wear-preventing paint of RLHY-31 high temperature resistant.
The present invention provides a kind of hex bolts production technology, the present invention is by improving and adjusting to prior art process
It is whole, increase carburization step in process of production, so that carburized layer is formed in the outer surface of bolt, to increase the hard of bolt surface
Degree；As long as the production technology carries out primary heating process to bolt, reduces energy consumption, saved cost, while bolt is strong
Du Genggao, toughness is more preferable, and corrosion resistance is stronger, can adapt to the weather environment of severe complexity, applies and is shaking biggish set
It is standby to be above not easy to crack, longer life expectancy.
Specific embodiment
As described below is only the preferred embodiment of the present invention, and protection scope is not limited merely to the embodiment, all to belong to
Protection scope of the present invention should belong in technical solution under thinking of the present invention.Simultaneously it should be pointed out that for the art
For those of ordinary skill, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
A kind of anti-corrosion and high strength hex bolts production technology, comprises the following steps that
Step 1, embryo material are chosen, and selection medium carbon alloy steel is raw material, to choose different specification blanks according to design；
Step 2, cold-heading molding, cold-heading goes out head and the bar portion of bolt blank in the punching of two moulds two or double blow solid die cold header；
Step 3, cutting turning, by the head cutter of bolt blank at hexagon；
Step 4, turning carry out turning to the resulting bolt blank of step 3, remove the burr and overlap on bolt blank head, and
By the corner turning camber on head；
Step 4 gained bolt blank is placed in converter by step 5, carburizing, the continuous converter of converter model SLQ260, converter from
Room temperature carries out carburizing after being raised to 900 degree, and carburizing time 2-4 hours, so that the surface of bolt blank forms carburized layer；
Step 6, lonneal, then carry out lonneal to bolt blank, and tempering temperature is controlled at 300~310 DEG C, heat preservation
Between be 80~90 minutes, after the completion of tempering, be water-cooled；
Bar portion is rubbed screw thread with thread rolling machine by step 7, thread rolling；
Step 8, cleaning, clean phosphating coat with alkaline solution；
Step 9, colouring, in one layer of anti-oxidation wearing layer of surface coating of bolt, anti-oxidation wearing layer is anti-for RLHY-31 high temperature resistant
Aoxidize wear-preventing paint；
Step 10, packaging and warehousing.
In addition to this, further include being cleaned to nut embryo material outer surface before step 4, remove greasy dirt.
The present invention provides a kind of hex bolts production technology, the present invention is by improving and adjusting to prior art process
It is whole, increase carburization step in process of production, so that carburized layer is formed in the outer surface of bolt, to increase the hard of bolt surface
Degree；As long as the production technology carries out primary heating process to bolt, reduces energy consumption, saved cost, while bolt is strong
Du Genggao, toughness is more preferable, and corrosion resistance is stronger, can adapt to the weather environment of severe complexity, applies and is shaking biggish set
It is standby to be above not easy to crack, longer life expectancy.
Claims (5)
1. a kind of anti-corrosion and high strength hex bolts production technology, which is characterized in that comprise the following steps that
Step 1, embryo material are chosen, and selection medium carbon alloy steel is raw material, to choose different specification blanks according to design；
Step 2, cold-heading molding, cold-heading goes out head and the bar portion of bolt blank in the punching of two moulds two or double blow solid die cold header；
Step 3, cutting turning, by the head cutter of bolt blank at hexagon；
Step 4, turning carry out turning to the resulting bolt blank of step 3, remove the burr and overlap on bolt blank head, and
By the corner turning camber on head；
Step 4 gained bolt blank is placed in converter by step 5, carburizing, and converter carries out carburizing after being raised to 900 degree from room temperature, is seeped
The carbon time 2-4 hours, so that the surface of bolt blank forms carburized layer；
Step 6, lonneal then carry out lonneal to bolt blank, are finally cooled down；
Bar portion is rubbed screw thread with thread rolling machine by step 7, thread rolling；
Step 8, cleaning, clean phosphating coat with alkaline solution；
Step 9, colouring, in one layer of anti-oxidation wearing layer of surface coating of bolt；
Step 10, packaging and warehousing.
2. a kind of anti-corrosion and high strength hex bolts production technology according to claim 1, which is characterized in that described turn
The continuous converter of furnace model SLQ260.
3. a kind of anti-corrosion and high strength hex bolts production technology according to claim 1, which is characterized in that the step
Further include being cleaned to nut embryo material outer surface before rapid 4, removes greasy dirt.
4. a kind of anti-corrosion and high strength hex bolts production technology according to claim 1, which is characterized in that described time
At 300~310 DEG C, soaking time is 80~90 minutes for fiery temperature control, after the completion of tempering, is water-cooled.
5. a kind of anti-corrosion and high strength hex bolts production technology according to claim 1, which is characterized in that described anti-
Oxidation wearing layer is the anti-oxidation wear-preventing paint of RLHY-31 high temperature resistant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910632196.9A CN110340617A (en) | 2019-07-13 | 2019-07-13 | A kind of anti-corrosion and high strength hex bolts production technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910632196.9A CN110340617A (en) | 2019-07-13 | 2019-07-13 | A kind of anti-corrosion and high strength hex bolts production technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110340617A true CN110340617A (en) | 2019-10-18 |
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|---|---|---|---|
| CN201910632196.9A Pending CN110340617A (en) | 2019-07-13 | 2019-07-13 | A kind of anti-corrosion and high strength hex bolts production technology |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111545996A (en) * | 2020-04-23 | 2020-08-18 | 成都迈特航空制造有限公司 | Machining method of flat-head bolt for locking hoop |
| CN112518254A (en) * | 2020-11-30 | 2021-03-19 | 中国航空工业标准件制造有限责任公司 | Machining method of high-precision bolt |
| CN112692524A (en) * | 2021-01-08 | 2021-04-23 | 浙江汇丰汽车零部件股份有限公司 | Guide pin production process |
Citations (7)
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|---|---|---|---|---|
| JP2000317738A (en) * | 1999-05-10 | 2000-11-21 | Hamanaka Nut Kk | Manufacture of stainless steel bolt |
| KR20030094981A (en) * | 2002-06-11 | 2003-12-18 | 주식회사 아세아볼트 | Rolling dice used therein and method for producing bolt |
| CN102581575A (en) * | 2012-03-21 | 2012-07-18 | 苏州新凌电炉有限公司 | Fabrication process of hexagonal flange toothed bolt |
| CN104625576A (en) * | 2013-11-06 | 2015-05-20 | 西安福斯特动力科技有限公司 | Anti-corrosion bolt machining technology |
| CN104625577A (en) * | 2013-11-06 | 2015-05-20 | 西安福斯特动力科技有限公司 | Bolt machining technology |
| CN109719470A (en) * | 2019-03-07 | 2019-05-07 | 嘉兴斯迈欧五金科技有限公司 | A kind of production technology of high-strength fastening bolt |
| CN109909690A (en) * | 2019-04-04 | 2019-06-21 | 浙江力友汽车科技有限公司 | A kind of processing technology of gearbox bolt |
-
2019
- 2019-07-13 CN CN201910632196.9A patent/CN110340617A/en active Pending
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|---|---|---|---|---|
| JP2000317738A (en) * | 1999-05-10 | 2000-11-21 | Hamanaka Nut Kk | Manufacture of stainless steel bolt |
| KR20030094981A (en) * | 2002-06-11 | 2003-12-18 | 주식회사 아세아볼트 | Rolling dice used therein and method for producing bolt |
| CN102581575A (en) * | 2012-03-21 | 2012-07-18 | 苏州新凌电炉有限公司 | Fabrication process of hexagonal flange toothed bolt |
| CN104625576A (en) * | 2013-11-06 | 2015-05-20 | 西安福斯特动力科技有限公司 | Anti-corrosion bolt machining technology |
| CN104625577A (en) * | 2013-11-06 | 2015-05-20 | 西安福斯特动力科技有限公司 | Bolt machining technology |
| CN109719470A (en) * | 2019-03-07 | 2019-05-07 | 嘉兴斯迈欧五金科技有限公司 | A kind of production technology of high-strength fastening bolt |
| CN109909690A (en) * | 2019-04-04 | 2019-06-21 | 浙江力友汽车科技有限公司 | A kind of processing technology of gearbox bolt |
Non-Patent Citations (2)
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| 机械工业标准化技术服务部: "《机械工业典型工艺与工艺守则汇编 第2版》", 30 June 1992 * |
| 颜国君: "《金属材料学》", 31 March 2019, 冶金工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111545996A (en) * | 2020-04-23 | 2020-08-18 | 成都迈特航空制造有限公司 | Machining method of flat-head bolt for locking hoop |
| CN112518254A (en) * | 2020-11-30 | 2021-03-19 | 中国航空工业标准件制造有限责任公司 | Machining method of high-precision bolt |
| CN112692524A (en) * | 2021-01-08 | 2021-04-23 | 浙江汇丰汽车零部件股份有限公司 | Guide pin production process |
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Application publication date: 20191018 |