CN107186442A - A kind of buried valve manufacture technique of corrosion resistance - Google Patents
A kind of buried valve manufacture technique of corrosion resistance Download PDFInfo
- Publication number
- CN107186442A CN107186442A CN201710408724.3A CN201710408724A CN107186442A CN 107186442 A CN107186442 A CN 107186442A CN 201710408724 A CN201710408724 A CN 201710408724A CN 107186442 A CN107186442 A CN 107186442A
- Authority
- CN
- China
- Prior art keywords
- valve
- parts
- size
- thick embryo
- corrosion resistance
- 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
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
- C21D1/25—Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C21D1/28—Normalising
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a kind of buried valve manufacture technique of corrosion resistance, comprise the following steps：From 304 stainless steels as blank, Size calculation is carried out according to valve size, then blank is cut according to the target size after calculating with cutting machine；And the embryo material after cutting is formed to the thick embryo of valve by machining；The weight of alloy auxiliary material is calculated according to thick embryo size, obtained thick embryo is placed in metal die, and the alloy auxiliary material of gained in step B is encased in thick embryo, then overall to boost to 7 8Gpa, it is sintered 10 minutes being warming up to more than 1500 DEG C, then quick cooling.The service life of valve can be effectively improved using the present invention.
Description
Technical field
The present invention relates to technical field of valve manufacturing, more particularly to a kind of buried valve manufacture technique of corrosion resistance.
Background technology
Valve is widely used in modern society.The valve of prior art has many kinds, mainly has ball valve, angle valve, cuts
Only valve etc., it is relatively simple for structure due to valve, it is easy to operate, so application is widely.
And the sealing function of valve is easily revealed once occurring abrasion or rupture, in fields such as combustion gas, oil gas once sending out
Raw leakage, easily occurs security incident.Therefore, it is necessary to improve its sealing property in the production process of valve, it is possible to increase it makes
With the life-span, the generation of leakage accident is reduced.
The content of the invention
The present invention solves the technical problem of a kind of buried valve manufacture technique of corrosion resistance is provided, by changing
The production technology of valve, to improve its service life.
To solve above-mentioned technical purpose, the technical solution adopted by the present invention is as follows：
A kind of buried valve manufacture technique of corrosion resistance, it is characterised in that comprise the following steps：
A. from 304 stainless steels as blank, Size calculation is carried out according to valve size, then with cutting machine according to calculating after
Target size blank is cut；And the embryo material after cutting is formed to the thick embryo of valve by machining；
B. the weight of alloy auxiliary material is calculated according to thick embryo size, the alloy auxiliary material is Mo：2 parts, Cu：7.5 parts, W：7.5 parts,
Si：4.5 parts, Mn：1.5 parts, Ti：7.5 parts, Se：4 parts, S：1 part, P：1 part mixes；
C. the thick embryo obtained to step A is placed in metal die, and the alloy auxiliary material of gained in step B is encased in into thick embryo
In, it is then overall to boost to 7-8Gpa, it is sintered 10 minutes being warming up to more than 1500 DEG C, then quick cooling；
D. the valve semi-finished product that step C is obtained are finished, is carrying out modifier treatment, beaten after modifier treatment using emery wheel
Mill, deburring, are processed by shot blasting to sealing surface using polishing machine, obtain the surface of flat smooth；
E. by exocoel progress increase surface roughness processing in gained valve in D steps, to strengthen adsorption ability；In carrying out again
The spraying of exocoel priming paint, then will be thermally dried processing, in heating simultaneously in valve insertion rolling by the valve of basecoat paint
Apply tungsten carbide wear-resistant coating；Then three times paint polyurethane coating varnishes are sprayed in valve outer surface again.
Further, the modifier treatment in the D steps includes multiple normalized treatment and a temper.
Further, the temper gradually heats mode using segmented and heated, every section keep 10 minutes with
Upper heating duration.
The beneficial effects of the invention are as follows：It is different from the situation of prior art, valve its service life obtained by the present invention is longer,
Sealing effectiveness is more preferable.
Embodiment
The present invention is described further with reference to specific embodiment.
A kind of buried valve manufacture technique of corrosion resistance, comprises the following steps：
A. from 304 stainless steels as blank, Size calculation is carried out according to valve size, then with cutting machine according to calculating after
Target size blank is cut；And the embryo material after cutting is formed to the thick embryo of valve by machining；
B. the weight of alloy auxiliary material is calculated according to thick embryo size, the alloy auxiliary material is Mo：2 parts, Cu：7.5 parts, W：7.5 parts,
Si：4.5 parts, Mn：1.5 parts, Ti：7.5 parts, Se：4 parts, S：1 part, P：1 part mixes；
C. the thick embryo obtained to step A is placed in metal die, and the alloy auxiliary material of gained in step B is encased in into thick embryo
In, it is then overall to boost to 7-8Gpa, it is sintered 10 minutes being warming up to more than 1500 DEG C, then quick cooling；
D. the valve semi-finished product that step C is obtained are finished, is carrying out modifier treatment, beaten after modifier treatment using emery wheel
Mill, deburring, are processed by shot blasting to sealing surface using polishing machine, obtain the surface of flat smooth；
E. by exocoel progress increase surface roughness processing in gained valve in D steps, to strengthen adsorption ability；In carrying out again
The spraying of exocoel priming paint, then will be thermally dried processing, in heating simultaneously in valve insertion rolling by the valve of basecoat paint
Apply tungsten carbide wear-resistant coating；Then three times paint polyurethane coating varnishes are sprayed in valve outer surface again.
Modifier treatment in the D steps includes multiple normalized treatment and a temper.Temper is using segmentation
Formula gradually heats mode and heated, and every section of holding heats duration in more than 10 minutes.
Valve its service life obtained by the present invention is longer, and sealing effectiveness is more preferable.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize invention
Equivalent structure or equivalent flow conversion that description is made, or directly or indirectly it is used in other related technical fields,
It is included within the scope of the present invention.
Claims (3)
1. a kind of buried valve manufacture technique of corrosion resistance, it is characterised in that comprise the following steps：
A. from 304 stainless steels as blank, Size calculation is carried out according to valve size, then with cutting machine according to calculating after
Target size blank is cut；And the embryo material after cutting is formed to the thick embryo of valve by machining；
B. the weight of alloy auxiliary material is calculated according to thick embryo size, the alloy auxiliary material is Mo：2 parts, Cu：7.5 parts, W：7.5 parts,
Si：4.5 parts, Mn：1.5 parts, Ti：7.5 parts, Se：4 parts, S：1 part, P：1 part mixes；
C. the thick embryo obtained to step A is placed in metal die, and the alloy auxiliary material of gained in step B is encased in into thick embryo
In, it is then overall to boost to 7-8Gpa, it is sintered 10 minutes being warming up to more than 1500 DEG C, then quick cooling；
D. the valve semi-finished product that step C is obtained are finished, is carrying out modifier treatment, beaten after modifier treatment using emery wheel
Mill, deburring, are processed by shot blasting to sealing surface using polishing machine, obtain the surface of flat smooth；
E. by exocoel progress increase surface roughness processing in gained valve in D steps, to strengthen adsorption ability；In carrying out again
The spraying of exocoel priming paint, then will be thermally dried processing, in heating simultaneously in valve insertion rolling by the valve of basecoat paint
Apply tungsten carbide wear-resistant coating；Then three times paint polyurethane coating varnishes are sprayed in valve outer surface again.
2. the buried valve manufacture technique of corrosion resistance according to claim 1, it is characterised in that in the D steps
Modifier treatment includes multiple normalized treatment and a temper.
3. the buried valve manufacture technique of corrosion resistance according to claim 3, it is characterised in that the temper is adopted
Gradually heat mode with segmented to be heated, every section of holding heats duration in more than 10 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710408724.3A CN107186442A (en) | 2017-06-02 | 2017-06-02 | A kind of buried valve manufacture technique of corrosion resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710408724.3A CN107186442A (en) | 2017-06-02 | 2017-06-02 | A kind of buried valve manufacture technique of corrosion resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107186442A true CN107186442A (en) | 2017-09-22 |
Family
ID=59877221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710408724.3A Withdrawn CN107186442A (en) | 2017-06-02 | 2017-06-02 | A kind of buried valve manufacture technique of corrosion resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107186442A (en) |
-
2017
- 2017-06-02 CN CN201710408724.3A patent/CN107186442A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170922 |
|
| WW01 | Invention patent application withdrawn after publication |