CN103464840A - Composite coating extrusion screw tap - Google Patents
Composite coating extrusion screw tap Download PDFInfo
- Publication number
- CN103464840A CN103464840A CN 201310411312 CN201310411312A CN103464840A CN 103464840 A CN103464840 A CN 103464840A CN 201310411312 CN201310411312 CN 201310411312 CN 201310411312 A CN201310411312 A CN 201310411312A CN 103464840 A CN103464840 A CN 103464840A
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- China
- Prior art keywords
- resistant coating
- composite coating
- thread forming
- forming tap
- hard wear
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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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Abstract
The invention discloses a composite coating extrusion screw tap which comprises a handle portion, a connection portion and a working portion. A thread cutting tooth is arranged on the outer portion of the working portion, a chromium nitride hard abrasion-resistant coating is arranged on the outer surface of the thread cutting tooth, and a titanium carbide nitride hard abrasion-resistant coating is arranged on the outer surface of the chromium nitride hard abrasion-resistant coating. The screw tap is simple and reasonable in structure, high in abrasion resistance and durable.
Description
Technical field
The present invention relates to the hardware & tools technical field, particularly relate to a kind of composite coating thread forming tap.
Background technology
Thread forming tap is to utilize the metal plastic deformation principle and a kind of Novel threaded cutter of machining internal thread, thread forming tap extruding internal thread is ELEMENTARY INTRODUCTION TO NON technique, be specially adapted to that intensity is lower, plasticity copper alloy and aluminium alloy preferably, also can be used for the material tapping that hardness is low, plasticity is large such as stainless steel and mild steel.
The wear-resisting durability of existing thread forming tap is bad, need to improve.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of composite coating thread forming tap, simple and reasonable, has higher anti-wear performance, durable in use.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of composite coating thread forming tap is provided, comprise: shank, connecting portion and operate portions, the outer setting of described operate portions has the screw chasing tooth, be provided with the chromium nitride hard wear-resistant coating on the outer surface of described screw chasing tooth, be provided with the TiCN hard wear-resistant coating on the outer surface of described chromium nitride hard wear-resistant coating.
In a preferred embodiment of the present invention, the thickness of described chromium nitride hard wear-resistant coating is 5 ~ 8 μ m.
In a preferred embodiment of the present invention, the thickness of described TiCN hard wear-resistant coating is 14 ~ 25 μ m.
In a preferred embodiment of the present invention, described thread forming tap adopts carbide alloy to make.
The invention has the beneficial effects as follows: composite coating thread forming tap of the present invention, simple and reasonable, there is higher anti-wear performance, durable in use.
The accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, in below describing embodiment, the accompanying drawing of required use is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings, wherein:
Fig. 1 is the structural representation of composite coating thread forming tap one preferred embodiment of the present invention;
In accompanying drawing, the mark of each parts is as follows: 1, shank, 2, connecting portion, 3, operate portions, 4, the screw chasing tooth.
The specific embodiment
Below will the technical scheme in the embodiment of the present invention be clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making all other embodiment that obtain under the creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, the embodiment of the present invention comprises:
A kind of composite coating thread forming tap, comprise: shank 1, connecting portion 2 and operate portions 3, the outer setting of described operate portions 3 has screw chasing tooth 4, be provided with the chromium nitride hard wear-resistant coating on the outer surface of described screw chasing tooth 4, be provided with the TiCN hard wear-resistant coating on the outer surface of described chromium nitride hard wear-resistant coating, combination by chromium nitride hard wear-resistant coating and TiCN hard wear-resistant coating, effectively improve hardness and the anti-wear performance of screw chasing tooth 4, extended service life.
The thickness of described chromium nitride hard wear-resistant coating is 5 ~ 8 μ m.
The thickness of described TiCN hard wear-resistant coating is 14 ~ 25 μ m.
Described thread forming tap adopts carbide alloy to make.
Composite coating thread forming tap of the present invention, simple and reasonable, there is higher anti-wear performance, durable in use.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention to do; or directly or indirectly be used in other relevant technical field, all in like manner be included in scope of patent protection of the present invention.
Claims (4)
1. a composite coating thread forming tap, it is characterized in that, comprise: shank, connecting portion and operate portions, the outer setting of described operate portions has the screw chasing tooth, be provided with the chromium nitride hard wear-resistant coating on the outer surface of described screw chasing tooth, be provided with the TiCN hard wear-resistant coating on the outer surface of described chromium nitride hard wear-resistant coating.
2. composite coating thread forming tap according to claim 1, is characterized in that, the thickness of described chromium nitride hard wear-resistant coating is 5 ~ 8 μ m.
3. composite coating thread forming tap according to claim 1, is characterized in that, the thickness of described TiCN hard wear-resistant coating is 14 ~ 25 μ m.
4. composite coating thread forming tap according to claim 1, is characterized in that, described thread forming tap adopts carbide alloy to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310411312 CN103464840A (en) | 2013-09-11 | 2013-09-11 | Composite coating extrusion screw tap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310411312 CN103464840A (en) | 2013-09-11 | 2013-09-11 | Composite coating extrusion screw tap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103464840A true CN103464840A (en) | 2013-12-25 |
Family
ID=49790004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310411312 Pending CN103464840A (en) | 2013-09-11 | 2013-09-11 | Composite coating extrusion screw tap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103464840A (en) |
-
2013
- 2013-09-11 CN CN 201310411312 patent/CN103464840A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131225 |