CN106563920A - Sintering manufacturing technique of valve element - Google Patents
Sintering manufacturing technique of valve element Download PDFInfo
- Publication number
- CN106563920A CN106563920A CN201610927956.5A CN201610927956A CN106563920A CN 106563920 A CN106563920 A CN 106563920A CN 201610927956 A CN201610927956 A CN 201610927956A CN 106563920 A CN106563920 A CN 106563920A
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- China
- Prior art keywords
- valve element
- sintering
- valve
- blank
- straight tube
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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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Classifications
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- 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)
- Taps Or Cocks (AREA)
Abstract
The invention discloses a sintering manufacturing technique of a valve element and belongs to the field of valve manufacturing. The sintering manufacturing technique of the valve element comprises the following steps of material selection, ball pressing treatment, sintering treatment, inner straight tube arrangement, grinding, cleaning, coating spraying and the like. Through the reliable machining technique, the finished valve element is more reliable.
Description
Technical field
The present invention relates to valve manufacture field, the sintering manufacturing process of specifically a kind of valve element.
Background technology
Valve is widely used in modern society.Particularly in water heating pipe fittings technical field, the valve of prior art has
Many kinds, mainly there is ball valve, angle valve, stop valve etc., and wherein ball-valve structure is relatively simple, and the valve element of mainly ball valve is simpler
It is single.The valve element of ball valve is on the whole symmetrical chondritic, and there is the overall cylindric through hole of an insertion centre, in the outer of valve element
The valve rod groove that is connected with valve rod is laterally provided with sphere centre position, when work, rotation valve rod makes the cylinder of valve element
The import and export of shape through-hole alignment ball valve, when quitting work, rotating backward valve rod makes the sphere of valve element be directed at the turnover of ball valve
Mouthful.It is relatively simple for structure due to ball valve, it is easy to operate.So in valve technology field application widely.And realize ball
The major part of the sealing function of valve is valve element, and the sealing ring coordinated with it, and the valve element of ball valve abrasion occurs or ruptures just
Easily reveal, scrap whole ball valve, therefore improve the sintering manufacturing process of valve element so as to be more reliable just to seem particularly
It is necessary.
The content of the invention
The present invention is intended to provide a kind of sintering manufacturing process of valve element, by processing technique reliability, realizes finished product valve element more
It is reliable.
For achieving the above object, technical scheme is as follows：
The sintering manufacturing process of a kind of valve element, it is characterised in that comprise the following steps：
Sorting：The iron powder of choice of powder shape is major ingredient, participates in accounting and weighs the titanium conduct of 1/3 granular size in 110 ~ 150 mesh
Blank, in being placed in die of press.
Pressure ball process：Forcing press is opened, the iron powder in mould and stainless steel material are suppressed into glomerate valve element blank.
Sintering processes：The valve element blank obtained after pressure ball process is placed in 550 DEG C ~ 650 DEG C and carries out preheating 30 minutes, reheats
To 1600 DEG C ~ 1750 DEG C, persistently sinter more than a hour, finally slowly cool to room temperature.
Insert interior straight tube：After the completion of sintering, lead in selection and external diameter is less than the titanium pipe of spherical shell latus rectum, cut
Into isometric with spherical shell latus rectum, using straight tube in the tapered punch punching press expansion on punch press or stamping machine, interior straight tube and ball are made
Shape shell is fixed together to form finished product valve element；
Polishing：Surface polishing is carried out, sanding burr totally and is polished, then carry out the active group of flame treatment or corona discharge
Surface treatment, to strengthen surface adsorption ability；
Basecoat paint：To surface spraying/roller coating prime paint, prime paint is white fused alumina sand grains, by the above-mentioned embryo through basecoat paint
Part is thermally dried 30-50min of process, and the temperature of heating is maintained at 60-80 degrees Celsius, then dried blank is entered
Row polishes process；
Surface lacquer is sprayed：In prime paint surface laser spraying of wearable coating, the wear-resistant coating is tungsten carbide coating, is dried 0.5-
After 1.5 hours, repeat spraying three times.
Further, the built-in pipe step of inserting is after spherical shell is obtained, in the centre position of spherical case surface
Open vertical masonry joint backlash and extrude valve rod groove, or valve rod groove is outputed in the centre position milling cutter of spherical case surface.
The beneficial effects of the present invention is：Using titanium, can effectively anticorrosive oxidation, it is to avoid valve element makes in specific environment
With the problem of the lost of life, employ acid solution and cleaned, the iron filings on top layer of going out are allowed to more attractive.The making of the present invention
Method not only significantly saves material, reduces the cost of ball valve core；And the ball valve core precision, thickness, complete for making
Property can be guaranteed, and the intensity of valve rod connecting seat and valve rod junction is improved.
Specific embodiment
With reference to specific embodiment, the present invention will be further described.
A kind of sintering manufacturing process of valve element, comprises the following steps：Sorting：The iron powder of choice of powder shape is major ingredient, is participated in
Accounting weighs the titanium of 1/3 granular size in 110 ~ 150 mesh as blank, in being placed in die of press.
Pressure ball process：Forcing press is opened, the iron powder in mould and stainless steel material are suppressed into glomerate valve element blank.
Sintering processes：The valve element blank obtained after pressure ball process is placed in 550 DEG C ~ 650 DEG C and carries out preheating 30 minutes, reheats
To 1600 DEG C ~ 1750 DEG C, persistently sinter more than a hour, finally slowly cool to room temperature.
Insert interior straight tube：After the completion of sintering, lead in selection and external diameter is less than the titanium pipe of spherical shell latus rectum, cut
Into isometric with spherical shell latus rectum, using straight tube in the tapered punch punching press expansion on punch press or stamping machine, interior straight tube and ball are made
Shape shell is fixed together to form finished product valve element；
Polishing：Surface polishing is carried out, sanding burr totally and is polished, then carry out the active group of flame treatment or corona discharge
Surface treatment, to strengthen surface adsorption ability；
Basecoat paint：To surface spraying/roller coating prime paint, prime paint is white fused alumina sand grains, by the above-mentioned embryo through basecoat paint
Part is thermally dried 30-50min of process, and the temperature of heating is maintained at 60-80 degrees Celsius, then dried blank is entered
Row polishes process；
Surface lacquer is sprayed：In prime paint surface laser spraying of wearable coating, the wear-resistant coating is tungsten carbide coating, is dried 0.5-
After 1.5 hours, repeat spraying three times.
The present invention adopts titanium, can effectively anticorrosive oxidation, it is to avoid valve element asking of shortening of service life in specific environment
Topic, employs acid solution and is cleaned, and the iron filings on top layer of going out are allowed to more attractive.The manufacture method of the present invention is not only significantly saved
Material has been saved, the cost of ball valve core has been reduced；And the ball valve core precision that makes, thickness, integrity can be protected
The intensity of card, valve rod connecting seat and valve rod junction is improved.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (2)
1. the sintering manufacturing process of a kind of valve element, it is characterised in that comprise the following steps：
Sorting：The iron powder of choice of powder shape is major ingredient, participates in accounting and weighs the titanium conduct of 1/3 granular size in 110 ~ 150 mesh
Blank, in being placed in die of press;
Pressure ball process：Forcing press is opened, the iron powder in mould and stainless steel material are suppressed into glomerate valve element blank;
Sintering processes：The valve element blank obtained after pressure ball process is placed in 550 DEG C ~ 650 DEG C and carries out preheating 30 minutes, is again heated to
1600 DEG C ~ 1750 DEG C, persistently sinter more than a hour, finally slowly cool to room temperature;
Insert interior straight tube：After the completion of sintering, in selection lead to and external diameter less than spherical shell latus rectum titanium pipe, be cut to
Spherical shell latus rectum is isometric, using straight tube in the tapered punch punching press expansion on punch press or stamping machine, makes interior straight tube outer with spherical
Shell is fixed together to form finished product valve element；
Polishing：Surface polishing is carried out, sanding burr totally and is polished, then carry out the active group of flame treatment or corona discharge
Surface treatment, to strengthen surface adsorption ability；
Basecoat paint：To surface spraying/roller coating prime paint, prime paint is white fused alumina sand grains, by the above-mentioned embryo through basecoat paint
Part is thermally dried 30-50min of process, and the temperature of heating is maintained at 60-80 degrees Celsius, then dried blank is entered
Row polishes process；
Surface lacquer is sprayed：In prime paint surface laser spraying of wearable coating, the wear-resistant coating is tungsten carbide coating, is dried 0.5-
After 1.5 hours, repeat spraying three times.
2. the sintering manufacturing process of valve element according to claim 1, it is characterised in that：The built-in pipe step is obtaining ball
After shape 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 outputs valve rod groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610927956.5A CN106563920A (en) | 2016-10-31 | 2016-10-31 | Sintering manufacturing technique of valve element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610927956.5A CN106563920A (en) | 2016-10-31 | 2016-10-31 | Sintering manufacturing technique of valve element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106563920A true CN106563920A (en) | 2017-04-19 |
Family
ID=58533552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610927956.5A Pending CN106563920A (en) | 2016-10-31 | 2016-10-31 | Sintering manufacturing technique of valve element |
Country Status (1)
| Country | Link |
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| CN (1) | CN106563920A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU645541A3 (en) * | 1974-12-16 | 1979-01-30 | Мебанк Инк (Фирма) | Method of forming rough surface on airfield metal slab |
| JP2006283176A (en) * | 2005-04-05 | 2006-10-19 | Nippon Steel Corp | Water-cooled steel pipe structure having excellent corrosion resistance and wear resistance, and method for producing the same |
| CN204459260U (en) * | 2015-01-30 | 2015-07-08 | 浙江瑞莱士机械有限公司 | Based on the spheroid of supersonic spray coating technique |
| CN105195996A (en) * | 2015-10-16 | 2015-12-30 | 汪廷云 | Process for manufacturing titanium valve element by sintering |
-
2016
- 2016-10-31 CN CN201610927956.5A patent/CN106563920A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU645541A3 (en) * | 1974-12-16 | 1979-01-30 | Мебанк Инк (Фирма) | Method of forming rough surface on airfield metal slab |
| JP2006283176A (en) * | 2005-04-05 | 2006-10-19 | Nippon Steel Corp | Water-cooled steel pipe structure having excellent corrosion resistance and wear resistance, and method for producing the same |
| CN204459260U (en) * | 2015-01-30 | 2015-07-08 | 浙江瑞莱士机械有限公司 | Based on the spheroid of supersonic spray coating technique |
| CN105195996A (en) * | 2015-10-16 | 2015-12-30 | 汪廷云 | Process for manufacturing titanium valve element by sintering |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170419 |
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| RJ01 | Rejection of invention patent application after publication |