CN107378384A - A kind of pressure-reducing valve manufacturing process - Google Patents
A kind of pressure-reducing valve manufacturing process Download PDFInfo
- Publication number
- CN107378384A CN107378384A CN201710409282.4A CN201710409282A CN107378384A CN 107378384 A CN107378384 A CN 107378384A CN 201710409282 A CN201710409282 A CN 201710409282A CN 107378384 A CN107378384 A CN 107378384A
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- CN
- China
- Prior art keywords
- pressure
- reducing valve
- parts
- manufacturing process
- wear
- 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
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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)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
The invention discloses a kind of pressure-reducing valve manufacturing process, belong to valve manufacture field.Comprise the following steps：It is major ingredient and alloy auxiliary material in mass ratio 15 to select iron:1 mixing, then gained compound carry out melting up to molten condition, and are injected into sealing container, then pass to inert gas, compound in container is set to stably enter casting mold in mold cavity, gas pressure is untill casting solidifies completely in holding container under gas pressure；Spray is heat-treated again, and is machined out to obtain pressure-reducing valve semi-finished product；Then after carrying out modifier treatment to pressure-reducing valve semi-finished product, polished using emery wheel, deburring, sealing surface is processed by shot blasting using polishing machine, obtains the surface of flat smooth；And painting wear-resistant coating is carried out in smooth surface, the wear-resistant coating is tungsten carbide coating.The service life of pressure-reducing 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 pressure-reducing valve manufacturing process.
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 very extensive.
And the sealing function of valve is easily revealed once abrasion or rupture occurs, 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 pressure-reducing valve manufacturing process is provided, by the production for changing pressure-reducing valve
Technique, 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 pressure-reducing valve manufacturing process, it is characterised in that comprise the following steps：
A. it is major ingredient and alloy auxiliary material in mass ratio 15 to select iron:1 mixing, the alloy auxiliary material is B:4 parts, Cr：11 parts, Ni：4
Part, C：0.5 part, Mo：2 parts, Cu：7 parts, W：0.6 part, Si：4 parts, Mn：1.5 parts, Ti：7 parts mix；
B. gained compound in step A is subjected to melting up to molten condition, and be injected into sealing container, then pass to inertia
Gas, make compound in container under gas pressure, stably enter casting mold in mold cavity, gas pressure in holding container
Untill casting solidifies completely；
C. the spray that step B obtains is heat-treated, and is machined out to obtain pressure-reducing valve semi-finished product；
D. after the pressure-reducing valve semi-finished product obtained to step C carry out modifier treatment, polished using emery wheel, deburring, utilize throwing
Ray machine is processed by shot blasting to sealing surface, obtains the surface of flat smooth；
E. painting wear-resistant coating is carried out to the smooth surface of pressure-reducing valve obtained by D steps, the wear-resistant coating is tungsten carbide coating.
Further, the wear-resistant coating in the E steps is dried 30 minutes after+Puttying, and roller coating surface mark applies
Layer.
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, its service life of the pressure-reducing valve of present invention gained
Longer, sealing effectiveness is more preferable.
Embodiment
The present invention is described further with reference to specific embodiment.
A kind of pressure-reducing valve manufacturing process, comprises the following steps：
A. it is major ingredient and alloy auxiliary material in mass ratio 15 to select iron:1 mixing, the alloy auxiliary material is B:4 parts, Cr：11 parts, Ni：4
Part, C：0.5 part, Mo：2 parts, Cu：7 parts, W：0.6 part, Si：4 parts, Mn：1.5 parts, Ti：7 parts mix.
B. gained compound in step A is subjected to melting up to molten condition, and be injected into sealing container, then passed to
Inert gas, make compound in container under gas pressure, stably enter casting mold in mold cavity, gas in holding container
Pressure is untill casting solidifies completely.
C. the spray that step B obtains is heat-treated, and is machined out to obtain pressure-reducing valve semi-finished product.
D. after the pressure-reducing valve semi-finished product obtained to step C carry out modifier treatment, polished using emery wheel, deburring, profit
Sealing surface is processed by shot blasting with polishing machine, obtains the surface of flat smooth；Modifier treatment in the D steps includes multiple
Normalized treatment and a temper.The temper gradually heats mode using segmented and heated, and every section keeps 10
Heating duration more than minute.
E. painting wear-resistant coating is carried out to the smooth surface of pressure-reducing valve obtained by D steps, the wear-resistant coating is tungsten carbide coating.It is resistance to
Coating is ground after Puttying, is dried 30 minutes, and roller coating surface identification coatings.
Its service life of the pressure-reducing valve of gained of the 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
The equivalent structure or equivalent flow conversion that description is made, or other related technical areas are directly or indirectly used in,
It is included within the scope of the present invention.
Claims (4)
1. a kind of pressure-reducing valve manufacturing process, it is characterised in that comprise the following steps：
A. it is major ingredient and alloy auxiliary material in mass ratio 15 to select iron:1 mixing, the alloy auxiliary material is B:4 parts, Cr：11 parts, Ni：4
Part, C：0.5 part, Mo：2 parts, Cu：7 parts, W：0.6 part, Si：4 parts, Mn：1.5 parts, Ti：7 parts mix；
B. gained compound in step A is subjected to melting up to molten condition, and be injected into sealing container, then pass to inertia
Gas, make compound in container under gas pressure, stably enter casting mold in mold cavity, gas pressure in holding container
Untill casting solidifies completely；
C. the spray that step B obtains is heat-treated, and is machined out to obtain pressure-reducing valve semi-finished product；
D. after the pressure-reducing valve semi-finished product obtained to step C carry out modifier treatment, polished using emery wheel, deburring, utilize throwing
Ray machine is processed by shot blasting to sealing surface, obtains the surface of flat smooth；
E. painting wear-resistant coating is carried out to the smooth surface of pressure-reducing valve obtained by D steps, the wear-resistant coating is tungsten carbide coating.
2. pressure-reducing valve manufacturing process according to claim 1, it is characterised in that the wear-resistant coating in the E steps is being scraped
After putty, dry 30 minutes, and roller coating surface identification coatings.
3. pressure-reducing valve manufacturing process according to claim 1, it is characterised in that the modifier treatment in the D steps includes
Multiple normalized treatment and a temper.
4. pressure-reducing valve manufacturing process according to claim 3, it is characterised in that the temper is gradual using segmented
The mode of heating is heated, and every section keeps heating duration in more than 10 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710409282.4A CN107378384A (en) | 2017-06-02 | 2017-06-02 | A kind of pressure-reducing valve manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710409282.4A CN107378384A (en) | 2017-06-02 | 2017-06-02 | A kind of pressure-reducing valve manufacturing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107378384A true CN107378384A (en) | 2017-11-24 |
Family
ID=60331746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710409282.4A Withdrawn CN107378384A (en) | 2017-06-02 | 2017-06-02 | A kind of pressure-reducing valve manufacturing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107378384A (en) |
-
2017
- 2017-06-02 CN CN201710409282.4A patent/CN107378384A/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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171124 |