CN106112408A - A kind of spool sintering manufacturing process - Google Patents
A kind of spool sintering manufacturing process Download PDFInfo
- Publication number
- CN106112408A CN106112408A CN201610650858.1A CN201610650858A CN106112408A CN 106112408 A CN106112408 A CN 106112408A CN 201610650858 A CN201610650858 A CN 201610650858A CN 106112408 A CN106112408 A CN 106112408A
- Authority
- CN
- China
- Prior art keywords
- spool
- manufacturing process
- sintering
- spherical shell
- straight tube
- 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.)
- Withdrawn
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/16—Both compacting and sintering in successive or repeated steps
-
- 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
- B23P15/001—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass valves or valve housings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Sliding Valves (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a kind of spool sintering manufacturing process, belong to valve manufacture field.This spool sintering manufacturing process comprises the following steps: select materials, pressure ball process, sintering processes, insert interior straight tube, polish, clean, the step such as spraying of wearable coating, reliable by processing technique, it is achieved finished product spool is more reliable.
Description
Technical field
The present invention relates to valve manufacture field, specifically a kind of spool sintering manufacturing process.
Background technology
Valve is widely used in modern society.Particularly in water heating pipe fittings technical field, the valve of prior art has
A variety of, mainly there are ball valve, angle valve, stop valve etc., wherein ball-valve structure is relatively simple, and the mainly spool of ball valve is simpler
Single.The spool of ball valve chondritic the most symmetrically, there is the cylindric through hole of a through entirety centre, outside spool
Sphere centre position laterally has the valve rod groove that is connected with valve rod, and the when of work, rotation valve rod makes the cylinder of spool
The import and export of shape through-hole alignment ball valve, the when of quitting work, rotate backward the turnover that valve rod makes the sphere alignment ball valve of spool
Mouthful.Relatively simple for structure due to ball valve, easy to operate.So applying widely at valve technology field.And realize ball
The major part of the sealing function of valve is spool, and the sealing ring coordinated with it, and the spool of ball valve abrasion occurs or just ruptures
Easily reveal, make whole ball valve scrap, therefore improve spool sintering manufacturing process so that it is more reliable just seeming particularly must
Want.
Summary of the invention
It is desirable to provide a kind of spool sintering manufacturing process, reliable by processing technique, it is achieved finished product spool more may be used
Lean on.
For achieving the above object, technical scheme is as follows:
A kind of spool sintering manufacturing process, it is characterised in that comprise the following steps:
Select materials: the iron powder of choice of powder shape is major ingredient, participate in accounting and weigh the granular size of 1/3 304 rustless steels at 110 ~ 150 mesh
As blank, it is placed in die of press.
Pressure ball processes: open forcing press, and the iron powder in mould and stainless steel material are suppressed glomerate spool blank.
Sintering processes: the spool blank that pressure ball obtains after processing is placed in 800 DEG C ~ 1000 DEG C to carry out preheating 30 minutes, then adds
Heat is to 1400 DEG C ~ 1450 DEG C, and persistently sintering more than one hour, finally slowly cools to room temperature.
Insert interior straight tube: after having sintered, selection is led to and external diameter is less than 304 stainless steel tubes of spherical shell latus rectum, incite somebody to action
It cuts into isometric with spherical shell latus rectum, uses straight tube in the tapered punch punching press expansion on punch press or stamping machine, make interior directly
Pipe and spherical shell are fixed together and form finished product spool；
Polishing: carry out surface polishing, sanding burr totally and is polished；
Clean: the spool made is put in acid solution, keeps 15 minutes, finally take out and rinse.
Basecoat paint: to surface spraying/roller coating prime paint, prime paint is white fused alumina sand grains, and is dried 30 minutes；
Surface lacquer sprays: at prime paint surface laser spraying of wearable coating, described wear-resistant coating is tungsten carbide coating, is dried 0.5-
After 1.5 hours, repeat to spray three times.
Further, built-in pipe step is inserted after obtaining spherical shell, in the centre position of spherical case surface described in
Open vertical masonry joint backlash and extrude valve rod groove, or output valve rod groove at the centre position milling cutter of spherical case surface.
Further, described wear-resistant coating thickness is 100 μm-120 μm.
The beneficial effects of the present invention is: use 304 rustless steels, can effective anticorrosive oxidation, it is to avoid spool is at specific ring
The problem that in border, service life shortens, have employed acid solution and is carried out, and goes out the iron filings on top layer, is allowed to more attractive.The present invention
Manufacture method the most significantly save material, reduce the cost of ball valve core；And the ball valve core precision made, thickness
Degree, integrity can be guaranteed, and valve rod connects the intensity of seat and valve rod junction and is improved.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention will be further described.
A kind of spool sintering manufacturing process, it is characterised in that comprise the following steps:
Select materials: the iron powder of choice of powder shape is major ingredient, participate in accounting and weigh the granular size of 1/3 304 rustless steels at 110 ~ 150 mesh
As blank, it is placed in die of press.
Pressure ball processes: open forcing press, and the iron powder in mould and stainless steel material are suppressed glomerate spool blank.
Sintering processes: the spool blank that pressure ball obtains after processing is placed in 800 DEG C ~ 1000 DEG C to carry out preheating 30 minutes, then adds
Heat is to 1400 DEG C ~ 1450 DEG C, and persistently sintering more than one hour, finally slowly cools to room temperature.
Insert interior straight tube: after having sintered, selection is led to and external diameter is less than 304 stainless steel tubes of spherical shell latus rectum, incite somebody to action
It cuts into isometric with spherical shell latus rectum, uses straight tube in the tapered punch punching press expansion on punch press or stamping machine, make interior directly
Pipe and spherical shell are fixed together and form finished product spool；
Polishing: carry out surface polishing, sanding burr totally and is polished；
Clean: the spool made is put in acid solution, keeps 15 minutes, finally take out and rinse.
Basecoat paint: to surface spraying/roller coating prime paint, prime paint is white fused alumina sand grains, and is dried 30 minutes；
Surface lacquer sprays: at prime paint surface laser spraying of wearable coating, described wear-resistant coating is tungsten carbide coating, is dried 0.5-
After 1.5 hours, repeat to spray three times.
Described built-in pipe step of inserting, after obtaining spherical shell, opens a vertical masonry joint in the centre position of spherical case surface
Backlash extrudes valve rod groove, or outputs valve rod groove at the centre position milling cutter of spherical case surface.
Described wear-resistant coating thickness is 100 μm-120 μm.
The present invention uses 304 rustless steels, can effective anticorrosive oxidation, it is to avoid spool shortens service life in specific environment
Problem, have employed acid solution and be carried out, go out the iron filings on top layer, be allowed to more attractive.The manufacture method of the present invention is the biggest
Width saves material, reduces the cost of ball valve core；And the ball valve core precision made, thickness, integrity can obtain
To ensureing, valve rod connects the intensity of seat and valve rod junction and is improved.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, that is made any repaiies
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (3)
1. a spool sintering manufacturing process, it is characterised in that comprise the following steps:
Select materials: the iron powder of choice of powder shape is major ingredient, participate in accounting and weigh the granular size of 1/3 304 rustless steels at 110 ~ 150 mesh
As blank, it is placed in die of press;
Pressure ball processes: open forcing press, and the iron powder in mould and stainless steel material are suppressed glomerate spool blank;
Sintering processes: the spool blank that pressure ball obtains after processing is placed in 800 DEG C ~ 1000 DEG C to carry out preheating 30 minutes, is again heated to
1400 DEG C ~ 1450 DEG C, persistently sintering more than one hour, finally slowly cools to room temperature;
Insert interior straight tube: after having sintered, selection is led to and external diameter is less than 304 stainless steel tubes of spherical shell latus rectum, cut
Be slit into isometric with spherical shell latus rectum, use straight tube in the tapered punch punching press expansion on punch press or stamping machine, make interior straight tube with
Spherical shell is fixed together and forms finished product spool；
Polishing: carry out surface polishing, sanding burr totally and is polished；
Clean: the spool made is put in acid solution, keeps 15 minutes, finally take out and rinse；
Basecoat paint: to surface spraying/roller coating prime paint, prime paint is white fused alumina sand grains, and is dried 30 minutes；
Surface lacquer sprays: at prime paint surface laser spraying of wearable coating, described wear-resistant coating is tungsten carbide coating, is dried 0.5-
After 1.5 hours, repeat to spray three times.
Spool the most according to claim 1 sintering manufacturing process, it is characterised in that described in insert built-in pipe step and obtaining
After spherical shell, open a vertical masonry joint backlash in the centre position of spherical case surface and extrude valve rod groove, or in spherical case surface
Centre position milling cutter output valve rod groove.
Spool the most according to claim 1 sintering manufacturing process, it is characterised in that described wear-resistant coating thickness be 100 μm-
120μm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610650858.1A CN106112408A (en) | 2016-08-10 | 2016-08-10 | A kind of spool sintering manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610650858.1A CN106112408A (en) | 2016-08-10 | 2016-08-10 | A kind of spool sintering manufacturing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106112408A true CN106112408A (en) | 2016-11-16 |
Family
ID=57258423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610650858.1A Withdrawn CN106112408A (en) | 2016-08-10 | 2016-08-10 | A kind of spool sintering manufacturing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106112408A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106624654A (en) * | 2016-12-28 | 2017-05-10 | 许帆 | Production technology of environment-friendly lead sheath with scales |
-
2016
- 2016-08-10 CN CN201610650858.1A patent/CN106112408A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106624654A (en) * | 2016-12-28 | 2017-05-10 | 许帆 | Production technology of environment-friendly lead sheath with scales |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20161116 |
|
| WW01 | Invention patent application withdrawn after publication |