CN106238734A - A kind of high rigidity spool sintering manufacturing process - Google Patents
A kind of high rigidity spool sintering manufacturing process Download PDFInfo
- Publication number
- CN106238734A CN106238734A CN201610650731.XA CN201610650731A CN106238734A CN 106238734 A CN106238734 A CN 106238734A CN 201610650731 A CN201610650731 A CN 201610650731A CN 106238734 A CN106238734 A CN 106238734A
- Authority
- CN
- China
- Prior art keywords
- spool
- spherical shell
- high rigidity
- manufacturing process
- sintering
- 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.)
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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
- B22F3/02—Compacting only
-
- 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
- B22F3/10—Sintering only
-
- 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
- B22F3/24—After-treatment of workpieces or articles
-
- 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
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
-
- 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
-
- 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
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/247—Removing material: carving, cleaning, grinding, hobbing, honing, lapping, polishing, milling, shaving, skiving, turning the surface
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a kind of high rigidity spool sintering manufacturing process, belong to valve manufacture field.This high rigidity 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 spray-on 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 high rigidity 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 high rigidity spool sintering manufacturing process so that it is more reliable just seem
Particularly necessary.
Summary of the invention
It is desirable to provide a kind of high rigidity spool sintering manufacturing process, reliable by processing technique, it is achieved finished product valve
Core is more reliable.
For achieving the above object, technical scheme is as follows:
A kind of high rigidity 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 1/3 410 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 550 DEG C ~ 650 DEG C to carry out preheating 30 minutes, reheats
To 1050 DEG C ~ 1350 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 410 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.
The beneficial effects of the present invention is: use 410 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 high rigidity spool sintering manufacturing process, comprises 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 1/3 410 rustless steels at 110 ~ 150 mesh as blank, be placed in die of press.At pressure ball
Reason: open forcing press, suppresses glomerate spool blank by the iron powder in mould and stainless steel material.Sintering processes: at pressure ball
The spool blank obtained after reason is placed in 550 DEG C ~ 650 DEG C to carry out preheating 30 minutes, is again heated to 1050 DEG C ~ 1350 DEG C, persistently burns
Tie more than one hour, finally slowly cool to room temperature.Insert interior straight tube: after having sintered, selection is led to and external diameter is less than ball
410 stainless steel tubes of shape shell latus rectum, are cut to isometric with spherical shell latus rectum, use the taper on punch press or stamping machine
Straight tube in punch expansion, makes interior straight tube and spherical shell be fixed together and forms finished product spool；Described built-in pipe step exists
After obtaining spherical shell, open a vertical masonry joint backlash in the centre position of spherical case surface and extrude valve rod groove, or at spherical shell
Valve rod groove outputed by the centre position milling cutter on surface.Polishing: carry out surface polishing, sanding burr totally and is polished；Clean: will
The spool made is put in acid solution, keeps 15 minutes, finally takes out and rinse；Basecoat paint: to surface spraying/roller coating bottom
Paint, prime paint is white fused alumina sand grains, and is dried 30 minutes；Surface lacquer sprays: in prime paint surface laser spraying of wearable coating, institute
Stating wear-resistant coating is tungsten carbide coating, after being dried 0.5-1.5 hour, repeats to spray three times.
The present invention uses 410 rustless steels, has the feature such as high rigidity, anticorrosive oxidation, it is to avoid spool is in specific environment
The problem that 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 system of the present invention
Make method and the most significantly save material, reduce the cost of ball valve core；And it is the ball valve core precision made, thickness, complete
Whole property can be guaranteed, and 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 (5)
1. a high rigidity 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 1/3 410 rustless steels at 110 ~ 150 mesh
As blank, it is placed in die of press.
2. pressure ball processes: open forcing press, and the iron powder in mould and stainless steel material are suppressed glomerate spool blank.
3. sintering processes: the spool blank that pressure ball obtains after processing is placed in 550 DEG C ~ 650 DEG C to carry out preheating 30 minutes, is again heated to
1050 DEG C ~ 1350 DEG C, persistently sintering more than one hour, finally slowly cools to room temperature.
4. inserting interior straight tube: after having sintered, in selection, logical and external diameter is less than 410 stainless steel tubes of spherical shell latus rectum, by it
Cut 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
It is fixed together with spherical shell 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.
High rigidity spool the most according to claim 1 sintering manufacturing process, it is characterised in that: described built-in pipe step is obtaining
After spherical shell, open a vertical masonry joint backlash in the centre position of spherical case surface and extrude valve rod groove, or at spherical shell table
Valve rod groove outputed by the centre position milling cutter in face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610650731.XA CN106238734A (en) | 2016-08-10 | 2016-08-10 | A kind of high rigidity spool sintering manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610650731.XA CN106238734A (en) | 2016-08-10 | 2016-08-10 | A kind of high rigidity spool sintering manufacturing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106238734A true CN106238734A (en) | 2016-12-21 |
Family
ID=58078501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610650731.XA Withdrawn CN106238734A (en) | 2016-08-10 | 2016-08-10 | A kind of high rigidity spool sintering manufacturing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106238734A (en) |
-
2016
- 2016-08-10 CN CN201610650731.XA patent/CN106238734A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20161221 |