CN207128105U - Cutting steel wire - Google Patents
Cutting steel wire Download PDFInfo
- Publication number
- CN207128105U CN207128105U CN201720813401.8U CN201720813401U CN207128105U CN 207128105 U CN207128105 U CN 207128105U CN 201720813401 U CN201720813401 U CN 201720813401U CN 207128105 U CN207128105 U CN 207128105U
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- China
- Prior art keywords
- steel wire
- cutting steel
- cutting
- zinc
- spelter coating
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Abstract
A kind of cutting steel wire (10), with line footpath of the scope from 40 μm to 300 μm and with the tensile strength higher than 2500MPa.Cutting steel wire (10) is provided with spelter coating (14).Spelter coating (14) has the average thickness less than 4 μm.Zinc steel alloy layer (16) between spelter coating (14) and steel (12) be present.The copper of the present utility model that can be avoided on cutting steel wire, and avoid forming zinc powder during drawing.
Description
Technical field
It the utility model is related to the cutting steel wire with specific coating.
Background technology
Cutting steel wire is widely used in cutting silicon chip.These cutting steel wires must have high tensile and must be thin, with
Just kerf loss is minimized.
Cutting steel wire is generally provided with Brass coating, i.e. yellow brass coatings, because Brass coating is in the final drawing phase
Between more or less play a part of lubricant, and therefore allow the contraction for reaching the high level needed for high tensile.
However, in final cutting steel wire and brass, particularly copper are not needed.On the contrary, even it is expected to avoid copper.For example,
If copper removal is not removed from surface, then copper may cause the conductivity issues in semi-conductor silicon chip.Experience have shown that it is trouble to remove copper removal
It is and uneconomic.
Only replace Brass coating can not solve problem by spelter coating.In fact, attachment issue between zinc and steel be present.
In addition, during the final drawing of steel wire, zinc forms substantial amounts of zinc powder.
Utility model content
A purpose of the present utility model is the shortcomings that mitigating prior art.
It is of the present utility model another object is that avoiding the copper on cutting steel wire.
Another purpose of the present utility model is to avoid forming zinc powder during drawing.
According to the utility model, there is provided a kind of cutting steel wire, its with line footpath of the scope from 40 μm to 300 μm and with
Tensile strength higher than 2500MPa.The cutting steel wire is provided with spelter coating, and spelter coating has the average thickness less than 4 μm, excellent
Choosing is less than 2 μm, is, for example, less than 1.0 μm.Zinc-steel alloy layer between spelter coating and steel be present.
The two particular aspects of the present utility model, i.e., alloy-layer between thin spelter coating and steel and spelter coating are deposited
Producing the advantage that.Shallow layer has the advantages of less zinc powder is produced during drawing.Alloy-layer largely improves
Adhesion of the spelter coating to steel, and because alloy-layer is harder than zinc, therefore alloy-layer also reduces the amount of zinc powder.
Using during cutting steel wire, i.e., during cutting process, once zinc is worn from surface, coarse alloy-layer and
Loose zinc or Zinc oxide particles can aid in carrying ground slurry.
The presence of zinc-steel alloy layer between zinc and steel can be by means of light microscope or by means of scanning electron microscopy
Mirror and easily detected.Both technologies are well known in the art.
Preferably, the diameter of cutting steel wire is less than 180 μm.The diameter more than 200 μm is not excluded for, but these are used for agglomerate
(briqueteer) steel wire.
Cutting steel wire can be straight cutting steel wire, or preferably so-called Structural type cutting steel, i.e. cutting steel wire
With the bending therebetween with section.Bending is attributed to, more slurries can be carried.These bendings can be by the plasticity of steel wire
Deformation produce, for example, by applying dual curling, by polygon morphing etc..Along steel wire, plastic deformation can be the cycle
And it is continuous, or can replace with by undeformed steel wire region.
The core of fixed abrasive cutting steel wire is may be used as according to cutting steel wire of the present utility model.It is preferable, however, that according to
Cutting steel wire of the present utility model is free abrasive cutting steel wire.
Brief description of the drawings
Fig. 1 shows the cross section according to cutting steel wire of the present utility model.
Embodiment
It can be made according to cutting steel wire of the present utility model according to following route.
Starting products are high-carbon wire rods, and it has following composition of steel：From 0.70% to 1.10%, manganese contains carbon content scope
Scope is measured from 0.10% to 1.10%, for silicone content scope from 0.10% to 0.90%, sulphur and phosphorus content are limited in 0.10%；Can be with
The microalloy element of the extra such as chromium of addition (up to 0.20%-0.40%)；Remaining is iron and inevitable impurity.It is all
Percentage is percentage by weight.Typical gauge or diameter of wire is 5.50mm.
Wire rod is cold drawn to middle line footpath.
At middle line footpath, steel wire is subjected to sorbitizing processing (patenting treatment), then in zinc bath
Carry out galvanizing by dipping.
Hot dipping plating bath produces zinc-steel alloy layer.Thin spelter coating produces as follows：Zinc bath is vertically left in substitution,
Steel wire relative to horizontal low-angle to leave zinc bath.After bath is left, zinc-coated wire for example by means of ceramic cloth and
Mechanically wiped.Nearly horizontally leave zinc bath and combine the mechanical following feature for wiping and causing coating：
(i) thickness of spelter coating reduces；And
(ii) thickness of zinc-steel alloy transition zone reduces.
The thickness of the reduction of both spelter coating and alloy-layer has the caused zinc powder during follow-up drawing step less
Advantage.
Finally, by the wire cold-drawing so coated at middle line footpath until its final diameter be less than 300 μm, preferably smaller than
180μm。
Fig. 1 shows the cross section according to cutting steel wire 10 of the present utility model, and a part for the cross section is exaggerated.Cut
Cutting steel wire 10 has steel core 12 and zinc surface coating 14.Centre is steel-zinc alloy layer 16.
During use, softer spelter coating 14 will fade away, and harder zinc-steel alloy layer 16 will appear in table
Face.The rough surface of this zinc-steel alloy layer 16 has raised and trench.It is recessed that extra ground slurry can be carried at these
Gu Zhong, this can improve cutting performance.
Claims (7)
1. a kind of cutting steel wire, it is characterised in that with line footpath of the scope from 40 μm to 300 μm and with higher than 2500MPa's
Tensile strength, the cutting steel wire are provided with spelter coating on steel core, and the spelter coating has the average thickness less than 4 μm,
Zinc-steel alloy layer between the spelter coating and the steel core be present.
2. cutting steel wire according to claim 1, it is characterised in that the scope of the line footpath is from 40 μm to 180 μm.
3. cutting steel wire according to claim 1, it is characterised in that the average thickness of the spelter coating is less than 2 μm.
4. cutting steel wire according to claim 1, it is characterised in that the cutting steel wire is straight cutting steel wire.
5. cutting steel wire according to claim 1, it is characterised in that the cutting steel wire has therebetween with the curved of section
It is bent.
6. cutting steel wire according to claim 1, it is characterised in that the cutting steel wire is free abrasive cutting steel wire.
7. cutting steel wire according to claim 1, it is characterised in that the cutting steel wire is used as fixed abrasive cutting steel wire
Core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720813401.8U CN207128105U (en) | 2017-07-06 | 2017-07-06 | Cutting steel wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720813401.8U CN207128105U (en) | 2017-07-06 | 2017-07-06 | Cutting steel wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207128105U true CN207128105U (en) | 2018-03-23 |
Family
ID=61633468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720813401.8U Active CN207128105U (en) | 2017-07-06 | 2017-07-06 | Cutting steel wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207128105U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110093644A (en) * | 2019-05-15 | 2019-08-06 | 江苏兴达钢帘线股份有限公司 | A kind of steel wire, its manufacturing method, wirerope and conveyer belt |
-
2017
- 2017-07-06 CN CN201720813401.8U patent/CN207128105U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110093644A (en) * | 2019-05-15 | 2019-08-06 | 江苏兴达钢帘线股份有限公司 | A kind of steel wire, its manufacturing method, wirerope and conveyer belt |
| CN110093644B (en) * | 2019-05-15 | 2021-04-16 | 江苏兴达钢帘线股份有限公司 | Steel wire, manufacturing method thereof, steel wire rope and conveying belt |
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