CN1073901A - The welding method of ball, roller with steel wire - Google Patents
The welding method of ball, roller with steel wire Download PDFInfo
- Publication number
- CN1073901A CN1073901A CN 91111755 CN91111755A CN1073901A CN 1073901 A CN1073901 A CN 1073901A CN 91111755 CN91111755 CN 91111755 CN 91111755 A CN91111755 A CN 91111755A CN 1073901 A CN1073901 A CN 1073901A
- Authority
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- China
- Prior art keywords
- steel wire
- weld bond
- ball
- welding
- welding method
- Prior art date
- 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.)
- Pending
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 41
- 239000010959 steel Substances 0.000 title claims abstract description 41
- 238000003466 welding Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000001816 cooling Methods 0.000 claims abstract description 17
- 229910001566 austenite Inorganic materials 0.000 claims abstract description 8
- 239000013078 crystal Substances 0.000 claims abstract description 4
- 230000009466 transformation Effects 0.000 claims abstract description 4
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 230000002950 deficient Effects 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000003032 molecular docking Methods 0.000 claims 1
- 238000000137 annealing Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 7
- 229910001562 pearlite Inorganic materials 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- FXNGWBDIVIGISM-UHFFFAOYSA-N methylidynechromium Chemical compound [Cr]#[C] FXNGWBDIVIGISM-UHFFFAOYSA-N 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Heat Treatment Of Steel (AREA)
Abstract
The present invention relates to a kind of welding procedure, a kind of steel wire welding method that provides in particular for increase ball (roller) coil of wire is heavy, be characterized in that annealing process takes two-step method, the one, with the cooling of the cooling velocity of 120～150 ℃ of per seconds, make it rapidly by the austenite crystal humidity province of growing up, the 2nd, cooling rate slows down, cooling velocity cooling with 150～170 ℃ of per minutes, finish austenite to perlitic transformation, make the weld bond place have toughness preferably, satisfy the requirement of producing steel ball.Welding method of the present invention is easy to be suitable for, and need not adopt the huge large-scale tandem mill of investment just can realize producing the heavy ball steel wire of deep bid.
Description
The present invention relates to a kind of welding procedure, a kind of steel wire welding method that provides in particular for increase ball coil of wire is heavy.
For improving the operating efficiency of producing the bearing roller steel ball, reduce the number of times that reloads, improve the utilization rate of material, produce the production needs of the high speed Cold header of 500～700 steel balls, require to have the heavy stock of deep bid to cooperate production with it in particular for satisfying the per minute that progressively adopts.This just needs to adopt large-scale wire tandem rolling machine, uses big blank, comes the heavy heavy steel wire of deep bid that reaches more than 200 kilograms of Rolling Production dish.Purchase this equipment and need consume huge fund.And heavy general of the coil of wire that small connecting rolling machine is produced need frequently reload in the steel ball production process about 30～100 kilograms like this, has reduced production efficiency, has also reduced the utilization rate of material simultaneously.
Because bearing quality steel is a high-carbon chromium steel, its phosphorus content is 0.95～1.05%, and chrome content is 1.3～1.65%, and its through hardening performance is good, cools off after the high-temperature soldering very easily to produce brittle failure, weldability extreme difference in air.Have not yet to see the solder technology that interrelated data publishes the ball steel wire.
The heavy a kind of welding method that can satisfy the ball steel wire of steel ball processing request that provides of dish for solving ball, roller with steel wire is provided.
Main feature of the present invention is that two-step method is taked in annealing, the one, rapidly by the austenite crystal humidity province of growing up, the 2nd, finish austenite to perlitic transformation, its concrete technical solution is: A, after steel wire connect face and carry out mechanical treatment, with the fixing steel wire of anchor clamps, and two interfaces are docked, B, to dock weld bond is heated to rapidly near the bearing quality steel melting temperature, be 1～15 second heat time heating time, nearly melting temperature is 1380～1420 ℃, C, finish the welding back and the weld bond temperature is reduced to 800～900 ℃ by 1380～1420 ℃ nearly fusing point with the cooling velocity of 120～150 ℃ of per seconds, make the weld bond place rapidly by the austenite crystal humidity province of growing up, prevent to cause the interface brittle failure because of grain growth, guarantee that weld bond has good toughness, requirement when satisfying the high speed Cold header towards ball, D, cooling rate then slows down, cooling velocity with 150～170 ℃ of average per minutes makes weld bond reduce to 250～400 ℃ from 800～900 ℃, finish austenite to perlitic transformation, E is cooled to normal domestic room temp at last naturally.
, can afterburning push during in the weld bond temperature, make the weld bond place extrude an endless belt, the impurity of interface is extruded, the purity of assurance interface interior tissue near the bearing quality steel fusing point.By the welding of welding steel silk distance generally between 13～20mm.After finishing welding, the place manufactures artificial defect at weld bond, is convenient to screening.
Welding method of the present invention can adopt electric welding, Laser Welding etc., need not have the welding method of solder flux or protective gas, is not changed to guarantee the bearing quality steel interior tissue.
Characteristics of the present invention are not adopt the huge large-scale tandem mill of investment just can realize producing the heavy ball steel wire of deep bid.This welding method small investment, instant effect, easy being suitable for, can carry out two dish butt joints or three dish butt joints, heavy to form deep bid, satisfy the needs that the high speed Cold header is produced, the number of times that reloads of steel wire in the time of reducing towards ball effectively improves the stock utilization towards ball operating rate and bearing steel wire.
The ball steel wire blank that uses this method welding is after pressing normal process steel wire finished products, and its port welding performance and steel wire self performance are relatively as table 1
Table 1
| Mechanical property | Metallographic structure | ||
| Tensile strength | Brinell hardness | ||
| Steel wire | 588～715.4 N／mm 2 | 170HB～207HB | Globular pearlite |
| Weld bond | 623N／mm 2～ 632N／mm 2 | 230HB～269HB | 90% is that lamellar pearlite about 10% is the acinous carbide |
| Transition region | The same | The same | The same |
According to the mechanical property that postwelding reaches, interface can satisfy the requirement of high speed Cold header towards ball and other accumulating aspects.But because the metallographic structure of weld bond is a lamellar pearlite, it is unfavorable for the Q-tempering of ball, therefore can manually manufacture defective in the weld bond district, makes this section steel wire after being washed into ball, and the visible marking can be arranged, and chooses when being convenient to check, does not influence end product quality.
Embodiment 1
Present embodiment adopts the electric welding machine welding, at first be that the tip side of the high carbon chromium ball-bearing wire GCr15 of φ 10.5mm carries out machinery and polishes processing with two dish (70 kilograms on every dish) diameters, after the alignment of two tip sides, fix with anchor clamps, the distance between two anchor clamps is 16mm, and pressurizes to steel wire by anchor clamps, the weldingvoltage that applies at weld makes connector temperature reach 1400 ℃ in 5～6 seconds, near the melting temperature of bearing quality steel, afterburning then extruding makes the weld bond place extrude an endless belt.After finishing welding, cut off the source of welding current, weld is cooled to 800 ℃ rapidly with the natural cooling velocity of 120 ℃ of per seconds, approximately needs for 5 seconds, and then connection power supply, apply low-voltage, in order to the cooling rate that slows down, this voltage will guarantee that cooling velocity descends with the speed of 160 ℃ of per minutes, approximately need 3 minutes, the weld bond temperature is reduced to 300 ℃ from 800 ℃, cuts off the electricity supply then, and it is cooled off naturally.The endless belt part that grinds off protrusion to be removed slightly.Manufacture a groove vertically at weld, the steel ball that this section gone out has the obvious defects mark, removes so that choose when checking.Two dishes are to postwelding, and weight reaches 140 kilograms.Also can carry out three dish or the more butt joints of polydisc as required.Experimental result, tensile strength is: 626N/mm
2, Brinell hardness is 240HB, and metallographic structure is about 90% for lamellar pearlite, and about 10% is the acinous carbide.
Embodiment 2
With two dish diameters is that the tip side of the high carbon chromium ball-bearing wire GCr15 of φ 7.0mm carries out machinery and polishes processing, and two tip sides alignment back is fixed with anchor clamps.Distance between two anchor clamps is 14mm, apply voltage at weld, make the temperature at weld bond place in 4 seconds, reach 1400 ℃, promptly near the melting temperature of bearing quality steel, afterburning then extruding makes the weld bond place extrude an endless belt, finishes the welding back and cuts off the source of welding current, weld is cooled to 800 ℃ rapidly with the cooling velocity of 160 ℃ of per seconds, approximately needed for 4 seconds, and then connect power supply, apply low-voltage, with the cooling rate that slows down, this voltage will guarantee that cooling velocity is 170 ℃/minute, approximately needs 3 minutes weld bond temperature to reduce to 290 ℃ from 800 ℃, cuts off the electricity supply then, it is cooled off naturally, and post-order process is with embodiment 1.The experimental result of mechanical property is: tensile strength 623N/mm
2, Brinell hardness 248HB, metallographic structure is about 90% for lamellar pearlite, about 10% is the acinous carbide.
Claims (4)
1, a kind of ball, the welding method of roller with steel wire, it is characterized in that A, after steel wire connect face and carry out mechanical treatment, with fixedly steel wire of folder, and two docking ports are docked, B, to dock weld bond is heated to rapidly near the bearing quality steel melting temperature, be 1～15 second heat time heating time, nearly melting temperature is 1380～1420 ℃, C, the welding back is reduced to 800～900 ℃ with the cooling velocity of 120～150 ℃ of per seconds with the nearly fusing point of 1380～1420 ℃ of weld bond temperature fully, make the weld bond place rapidly by the austenite crystal humidity province of growing up, D, cooling rate then slows down, cooling velocity with 150～170 ℃ of average per minutes makes weld bond reduce to 250～400 ℃ from 800～900 ℃, finish austenite to perlitic transformation, F, naturally cool to room temperature at last.
2, the welding method of ball according to claim 1, roller with steel wire is characterized in that in the weld bond temperature during near the bearing quality steel fusing point, afterburning extruding makes the weld bond place extrude an endless belt.
3, the welding method of ball according to claim 1, roller with steel wire is characterized in that: after finishing welding, the place manufactures defective at weld bond, makes it have the visible marking.
4, the welding method of ball according to claim 1, roller with steel wire is characterized in that the welding distance is 13～20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91111755 CN1073901A (en) | 1991-12-30 | 1991-12-30 | The welding method of ball, roller with steel wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91111755 CN1073901A (en) | 1991-12-30 | 1991-12-30 | The welding method of ball, roller with steel wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1073901A true CN1073901A (en) | 1993-07-07 |
Family
ID=4910826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91111755 Pending CN1073901A (en) | 1991-12-30 | 1991-12-30 | The welding method of ball, roller with steel wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1073901A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301049C (en) * | 2001-12-28 | 2007-02-14 | 松下电器产业株式会社 | Soldering method and soldering structure body |
| CN103962385A (en) * | 2014-04-21 | 2014-08-06 | 河北工程大学 | Rolling technology for refining SCM435 steel austenite grains |
| CN111761242A (en) * | 2020-07-01 | 2020-10-13 | 苏闽(张家港)新型金属材料科技有限公司 | Welding process of superfine super-strong high-carbon steel wire with diameter less than or equal to 0.4mm |
-
1991
- 1991-12-30 CN CN 91111755 patent/CN1073901A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301049C (en) * | 2001-12-28 | 2007-02-14 | 松下电器产业株式会社 | Soldering method and soldering structure body |
| CN103962385A (en) * | 2014-04-21 | 2014-08-06 | 河北工程大学 | Rolling technology for refining SCM435 steel austenite grains |
| CN103962385B (en) * | 2014-04-21 | 2016-01-20 | 河北工程大学 | A kind of rolling mill practice of refinement SCM435 steel austenite crystal |
| CN111761242A (en) * | 2020-07-01 | 2020-10-13 | 苏闽(张家港)新型金属材料科技有限公司 | Welding process of superfine super-strong high-carbon steel wire with diameter less than or equal to 0.4mm |
| CN111761242B (en) * | 2020-07-01 | 2022-03-25 | 苏闽(张家港)新型金属材料科技有限公司 | Welding process of superfine super-strong high-carbon steel wire with diameter less than or equal to 0.4mm |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |