CN105478502A - Production process of non-annealed wire material for pulling rivet pull rod - Google Patents
Production process of non-annealed wire material for pulling rivet pull rod Download PDFInfo
- Publication number
- CN105478502A CN105478502A CN201511003566.0A CN201511003566A CN105478502A CN 105478502 A CN105478502 A CN 105478502A CN 201511003566 A CN201511003566 A CN 201511003566A CN 105478502 A CN105478502 A CN 105478502A
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- China
- Prior art keywords
- wire
- production process
- tensile strength
- compression rate
- pulling rivet
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/02—Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels
- B21C3/02—Dies; Selection of material therefor; Cleaning thereof
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Metal Extraction Processes (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
The invention discloses a production process of a non-annealed wire material for a pulling rivet pull rod. The production process comprises the following steps: (1) selecting materials, namely selecting an aluminum killed steel material which comprises the following chemical components in percentage by mass: 0.16% to 0.19% of C, 0.04% to 0.09% of Si, 0.61% to 0.89% of Mn, 0.015% to 0.25% of P, 0.010% to 0.020% of S, 0.03% to 0.070% of Al and the balance of Fe; (2) drawing, namely drawing the aluminum killed steel material by using a wire drawing machine; selecting a wire drawing mold of which the working taper angle is 14 to 16 degrees and the sizing length is 2.5mm to 3.0mm; simultaneously, performing wire drawing according to rules that the total compression rate is large and the part compression rate is small, wherein the total compression rate is larger than or equal to 60%, and the part compression rate is smaller than or equal to 15%. A wire material produced by the production process disclosed by the invention is small in scattering difference in tensile strength within a specific range so as to satisfy the riveting requirements of the type of products; a steel wire is bright and smooth in surface and stable in tensile strength and physical properties; a penetrating rod is good in uniformity; the product is small in wire diameter tolerance and high in wire diameter stability.
Description
Technical field
The present invention relates to wire rod process field technology, refer in particular to a kind of pulling rivet pull bar production technology exempting from annealing wire rod.
Background technology
Pulling rivet, as the securing member of novelty, more and more receives the concern of people.Because it has the advantage of many uniquenesses, in a lot of field, instead of bolt connect and welding, various structural member is made to become compact, light and handy, handsome in appearance, easy to use, labor and material saving, is therefore widely used in the industries such as aircraft, boats and ships, automobile, machinery, household electrical appliance, electrical instrumentation, architectural decoration, case and bag and container.
At present, the pulling rivet pull bar material trade mark of domestic use has carbon constructional quality steel silk, alloy structural steel wire, cold upsetting stainless steel wire or non-ferrous metal wire material, the kind of pulling rivet, specification and output obtain very large development, from single aluminium rivet of loosing core, develop into open-type and the enclosed type pulling rivet of all steel, all steel etc., wire gauge develops into more than 80 by several, progressively defines tandem product.Pulling rivet belongs to labor-intensive product, as long as according to domestic and international market needs, can continually develop new product, improve product specification, the production of rivet mandrel steel wire has become metallic article new industry, and development rapidly.Its development prospect is very wide.
Pulling rivet pull bar is in actual production process, several difficult point is still had not to be well solved, cause yield rate the: 1. it is large to follow closely bar part draw ratio, pull bar length is greater than 50mm usually, thus the easy flexural deformation of work in-process, final bending pull bar can not be discharged smoothly from drawing rifle, therefore requires that rod material has stable performance and higher poker; 2. pull bar tolerance is high, require very strict to the cooperation of each several part and co-ordination during the riveted joint of rivet, nail bar cut off the straight thickness of ring and diameter, cut-off neck slot diameter equidimension is extremely important for the shaping of rivet, the scope of its size adjustable is very little, and tolerance is strict.Wherein cut off ring thickness and the straight tolerance range of nail bar of cutting off before and after ring is only 0.02mm; 3. follow closely the bar footpath slot machining difficulty disconnected footpath groove that breaks too wide, easily cause nail bar section irregular, rough and uneven in surface, very easily cause the test of riveted joint property defective, therefore, require that the width of disconnected footpath groove is maximum and be no more than .03mm, this adds difficulty for processing, 4. pair tensile strength requires more strict, intensity too Gao Zeyi does not rupture after causing staking or staking cracking, when intensity is too low, then rivet ruptures turning over riveting, therefore requires that stretching resistance scattered error is little, therefore restricts the fast development of China's staking product to a certain extent.
Visible pulling rivet pull bar is very large to raw-material dependence, and also very high to raw-material requirement; Its tensile strength and processing performance require also different, the mechanical property of steel depends primarily on its chemical composition and microscopic structure, in addition production technology link also has important impact to its performance, carry out the research work of many chemistry about ferrous materials, microscopic structure and its mechanical property quantitative relationship abroad, how to provide stable pulling rivet pull bar material, be the difficult problem being engaged in pulling rivet research always.
Summary of the invention
In view of this, the present invention is directed to the disappearance of prior art existence, its main purpose is to provide a kind of pulling rivet pull bar production technology exempting from annealing wire rod, and it effectively can solve the bad problem of existing pulling rivet pull bar stability.
For achieving the above object, the present invention adopts following technical scheme:
The pulling rivet pull bar production technology exempting from annealing wire rod, includes following steps:
(1) selection: choose aluminum killed steel material, its chemical composition contains in mass %: the Al of S, 0.03-0.070% of P, 0.010-0.020% of Mn, 0.015-0.25% of Si, 0.61-0.89% of C, 0.04-0.09% of 0.16-0.19%, and all the other are Fe;
(2) drawing: utilize wire drawing machine to carry out drawing to aluminum killed steel material, choose wire-drawing die, the working cone angle of wire-drawing die is 14-16 °, sizing length is 2.5-3.0mm, and, the principle that total draught is large, Partial shrinkage rate is little is taked to carry out during wire drawing, wherein total draught >=60%, Partial shrinkage rate≤15%.
The present invention compared with prior art has obvious advantage and beneficial effect, specifically, as shown from the above technical solution:
Produce the tensile strength of its particular range of wire rod obtained through the present invention, scattered error is little, and to meet the staking requirement of this series products, Steel Wire Surface light, tensile strength and stable physical property, poker uniformity is good, and product wire diameter tolerance is little, and wire diameter stability is high.Product properties is obviously superior to existing market similar products, can better be applied to securing member processing industry, improve serviceability and the lumber recovery of the product that Investment in fastener industry is produced, there are good market prospects, for company creates considerable economic benefit.
For more clearly setting forth architectural feature of the present invention and effect, below in conjunction with accompanying drawing and specific embodiment, the present invention is described in detail.
Accompanying drawing explanation
Fig. 1 is the production procedure schematic diagram of the preferred embodiment of the present invention.
Detailed description of the invention
Please refer to shown in Fig. 1, the present invention discloses a kind of pulling rivet pull bar production technology exempting from annealing wire rod, includes following steps:
(1) selection: choose aluminum killed steel material, its chemical composition contains in mass %: the Al of S, 0.03-0.070% of P, 0.010-0.020% of Mn, 0.015-0.25% of Si, 0.61-0.89% of C, 0.04-0.09% of 0.16-0.19%, and all the other are Fe; Strictly control S, P content especially during receiving inspection, to Segregation of Chemical Composition, the stability aspect of interior tissue situation, original size precision and various performance inconsistency more strictly controls, to meet the needs of production.
(2) drawing: utilize wire drawing machine to carry out drawing to aluminum killed steel material, choose wire-drawing die, the working cone angle of wire-drawing die is 14-16 °, sizing length is 2.5-3.0mm, and, the principle that total draught is large, Partial shrinkage rate is little is taked to carry out during wire drawing, wherein total draught >=60%, Partial shrinkage rate≤15%.The present invention adopts hard alloy drawing mould, the roughness of its hardness, the work conical surface and calibrating strap all can cause impact in various degree on the tolerance of wire drawing and with bar, and the length of calibrating strap has to cause on final products allowance control and closes important impact: long increase drawing resistance, make product degree of lubrication poor, too short then product surface attachment is more; Bring to following process and affect significantly, the work tapering of wire drawing die affects very large equally for wire rod allowance control, and the wire-drawing die of research customization relevant parameter specification, to reduce the poker of its wire diameter tolerance and raising product.And, total draught of the present invention is large, its deflection produced is larger, the interior tissue of steel wire by the drawing-down of machinery, draw broken, generation stress value is higher, for follow-up spheroidizing provides more energy, Oxygen potential is improved, and plasticity improves, and takes little Partial shrinkage rate simultaneously, Steel Wire Surface work-hardening capacity in process is significantly reduced, stability of enhancing product performance.
The present invention will be described to use specific embodiment below.
Embodiment 1
(1) selection: choose aluminum killed steel material, its chemical composition contains in mass %: the C of 0.16%, the Si of 0.04%, the Mn of 0.61%, P, the S of 0.010%, the Al of 0.030% of 0.015%, and all the other are Fe;
(2) drawing: utilize wire drawing machine to carry out drawing to aluminum killed steel material, choose wire-drawing die, the working cone angle of wire-drawing die is 14 °, sizing length is 2.5mm, and, take the principle that total draught is large, Partial shrinkage rate is little to carry out during wire drawing, wherein total draught is 60%, and Partial shrinkage rate is 15%.
The wire rod obtained after the present embodiment process is carried out chamfer dimesion, Oxygen potential, grain size, tensile strength and Hardness Surveillance, the method of inspection of chamfer dimesion, Oxygen potential, grain size, tensile strength and hardness is existing mature technology, do not describe in detail in this method of inspection to chamfer dimesion, Oxygen potential, grain size, tensile strength and hardness, the data that inspection obtains are: chamfer dimesion is 0.15mm, nodulizing grade is 5 grades, grain size is 9 grades, tensile strength is 500MPa, and hardness (HV) is 170.
The wire rod obtained after the present embodiment process is carried out the inspection of tensile strength, Vickers hardness and tolerance, the method of inspection of tensile strength, Vickers hardness and tolerance is existing mature technology, do not describe in detail in this method of inspection to tensile strength, Vickers hardness and tolerance, the data that inspection obtains are: tensile strength is 950MPa, Vickers hardness is 250, and tolerance is 0.02mm.
Embodiment 2
(1) selection: choose aluminum killed steel material, its chemical composition contains in mass %: the C of 0.19%, the Si of 0.09%, the Mn of 0.89%, P, the S of 0.020%, the Al of 0.070% of 0.25%, and all the other are Fe;
(2) drawing: utilize wire drawing machine to carry out drawing to aluminum killed steel material, choose wire-drawing die, the working cone angle of wire-drawing die is 16 °, sizing length is 3.0mm, and, take the principle that total draught is large, Partial shrinkage rate is little to carry out during wire drawing, wherein total draught is 65%, and Partial shrinkage rate is 12%.
The wire rod obtained after the present embodiment process is carried out the inspection of tensile strength, Vickers hardness and tolerance, the method of inspection of tensile strength, Vickers hardness and tolerance is existing mature technology, do not describe in detail in this method of inspection to tensile strength, Vickers hardness and tolerance, the data that inspection obtains are: tensile strength is 1000MPa, Vickers hardness is 260, and tolerance is 0.02mm.
Embodiment 3
(1) selection: choose aluminum killed steel material, its chemical composition contains in mass %: the C of 0.17%, the Si of 0.06%, the Mn of 0.75%, P, the S of 0.015%, the Al of 0.049% of 0.136%, and all the other are Fe;
(2) drawing: utilize wire drawing machine to carry out drawing to aluminum killed steel material, choose wire-drawing die, the working cone angle of wire-drawing die is 15 °, sizing length is 2.7mm, and, take the principle that total draught is large, Partial shrinkage rate is little to carry out during wire drawing, wherein total draught is 70%, and Partial shrinkage rate is 10%.
The wire rod obtained after the present embodiment process is carried out the inspection of tensile strength, Vickers hardness and tolerance, the method of inspection of tensile strength, Vickers hardness and tolerance is existing mature technology, do not describe in detail in this method of inspection to tensile strength, Vickers hardness and tolerance, the data that inspection obtains are: tensile strength is 1050MPa, Vickers hardness is 270, and tolerance is 0.02mm.
The above, it is only preferred embodiment of the present invention, not technical scope of the present invention is imposed any restrictions, thus every above embodiment is done according to technical spirit of the present invention any trickle amendment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (1)
1. the pulling rivet pull bar production technology exempting from annealing wire rod, is characterized in that: include following steps:
(1) selection: choose aluminum killed steel material, its chemical composition contains in mass %: the Al of S, 0.03-0.070% of P, 0.010-0.020% of Mn, 0.015-0.25% of Si, 0.61-0.89% of C, 0.04-0.09% of 0.16-0.19%, and all the other are Fe;
(2) drawing: utilize wire drawing machine to carry out drawing to aluminum killed steel material, choose wire-drawing die, the working cone angle of wire-drawing die is 14-16 °, sizing length is 2.5-3.0mm, and, the principle that total draught is large, Partial shrinkage rate is little is taked to carry out during wire drawing, wherein total draught >=60%, Partial shrinkage rate≤15%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511003566.0A CN105478502A (en) | 2015-12-29 | 2015-12-29 | Production process of non-annealed wire material for pulling rivet pull rod |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201511003566.0A CN105478502A (en) | 2015-12-29 | 2015-12-29 | Production process of non-annealed wire material for pulling rivet pull rod |
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| CN105478502A true CN105478502A (en) | 2016-04-13 |
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| CN201511003566.0A Pending CN105478502A (en) | 2015-12-29 | 2015-12-29 | Production process of non-annealed wire material for pulling rivet pull rod |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106381443A (en) * | 2016-08-30 | 2017-02-08 | 昆山敏欣电子有限公司 | Galvanized iron rivet and manufacturing process thereof |
| CN111715721A (en) * | 2019-03-20 | 2020-09-29 | 江阴市春瑞金属制品有限公司 | Preparation method of stainless steel structural type rivet line |
| CN112410516A (en) * | 2020-11-10 | 2021-02-26 | 江苏宝钢精密钢丝有限公司 | Preparation method of high-efficiency rivet steel |
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| CN101028680A (en) * | 2007-04-02 | 2007-09-05 | 马鞍山钢铁股份有限公司 | Method for producing 8.8-grade high-strength fastener |
| CN101069939A (en) * | 2007-04-30 | 2007-11-14 | 马鞍山钢铁股份有限公司 | Non-modulation cold-forging steel wire processing high-streagth fastener method |
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| CN102747269A (en) * | 2012-05-22 | 2012-10-24 | 内蒙古包钢钢联股份有限公司 | Low-silicon aluminum-containing steel and production method thereof |
| CN104289535A (en) * | 2014-09-30 | 2015-01-21 | 东莞市科力钢铁线材有限公司 | Method for forcedly lubricating and drawing wire rod |
| CN104313281A (en) * | 2014-09-30 | 2015-01-28 | 东莞市科力钢铁线材有限公司 | Process for producing high-nodularity fastener wire rod |
-
2015
- 2015-12-29 CN CN201511003566.0A patent/CN105478502A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101028680A (en) * | 2007-04-02 | 2007-09-05 | 马鞍山钢铁股份有限公司 | Method for producing 8.8-grade high-strength fastener |
| CN101069939A (en) * | 2007-04-30 | 2007-11-14 | 马鞍山钢铁股份有限公司 | Non-modulation cold-forging steel wire processing high-streagth fastener method |
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| CN104313281A (en) * | 2014-09-30 | 2015-01-28 | 东莞市科力钢铁线材有限公司 | Process for producing high-nodularity fastener wire rod |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106381443A (en) * | 2016-08-30 | 2017-02-08 | 昆山敏欣电子有限公司 | Galvanized iron rivet and manufacturing process thereof |
| CN111715721A (en) * | 2019-03-20 | 2020-09-29 | 江阴市春瑞金属制品有限公司 | Preparation method of stainless steel structural type rivet line |
| CN112410516A (en) * | 2020-11-10 | 2021-02-26 | 江苏宝钢精密钢丝有限公司 | Preparation method of high-efficiency rivet steel |
| CN112410516B (en) * | 2020-11-10 | 2023-12-15 | 江苏宝钢精密钢丝有限公司 | Preparation method of high-efficiency blind rivet steel |
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Application publication date: 20160413 |
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