CN107378385A - A kind of manufacture method for high pressure direct injection pressure reducer - Google Patents
A kind of manufacture method for high pressure direct injection pressure reducer Download PDFInfo
- Publication number
- CN107378385A CN107378385A CN201710414623.7A CN201710414623A CN107378385A CN 107378385 A CN107378385 A CN 107378385A CN 201710414623 A CN201710414623 A CN 201710414623A CN 107378385 A CN107378385 A CN 107378385A
- Authority
- CN
- China
- Prior art keywords
- parts
- cleaned
- housing
- pressure reducer
- chromium plating
- 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- Withdrawn
Links
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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/006—Making ferrous alloys compositions used for making ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/04—Electroplating: Baths therefor from solutions of chromium
- C25D3/06—Electroplating: Baths therefor from solutions of chromium from solutions of trivalent chromium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Electroplating Methods And Accessories (AREA)
- Chemically Coating (AREA)
Abstract
The invention discloses a kind of manufacture method for high pressure direct injection pressure reducer, belong to pressure reducer manufacturing technology field, comprise the following steps：A. the chemical component weight percentage of pressure reducer housing is：C：0.15 0.35%, Si：0.6 0.9%, Mn：0.6 1.5%, Ti：0.15 0.25%, Cr：0.3 1.1%, Ni：0.5 1.3%, remaining is iron；B. mentioned component melting is obtained into mixed liquor, by mixed liquor injection die casting shaping；C. the housing of shaping is cooled down；D. roughing and finishing are carried out to housing；E. cleaned, chromium plating process in chromium plating liquid is put into after cleaning；F. cleaned, then dried after chromium plating.Obtained pressure reducer quality is high, is not in crackle.
Description
Technical field
The present invention relates to pressure reducer manufacturing technology field, in particular to a kind of system for high pressure direct injection pressure reducer
Make method.
Background technology
The gas for the elevated pressures being stored in gas cylinder is reduced to low-pressure gas by pressure reducer, and should ensure that required work pressure
Power keeps stable state from beginning to end.In a word, pressure reducer is that gases at high pressure are reduced into low-pressure gas and keep the pressure of output gas
Power and the constant adjusting means of stability of flow.The housing of many pressure reducers is machined into using stainless steel at present, is being processed
During its mechanical performance it is relatively poor, it is easily cracked and cause gas leakage.
The content of the invention
It is an object of the invention to provide a kind of manufacture method for high pressure direct injection pressure reducer, to solve the above problems.
To realize the object of the invention, the technical scheme that uses for：A kind of manufacture method for high pressure direct injection pressure reducer, bag
Include following steps：
A. the chemical component weight percentage of pressure reducer housing is：C：0.15-0.35%, Si：0.6-0.9%, Mn：0.6-1.5%,
Ti：0.15-0.25%, Cr：0.3-1.1%, Ni：0.5-1.3%, remaining is iron；
B. mentioned component melting is obtained into mixed liquor, by mixed liquor injection die casting shaping；
C. the housing of shaping is cooled down, when temperature drops to 350 DEG C, is again heated to 600-700 DEG C, and be incubated 5h；It is cold again
But to 300-400 DEG C, and it is incubated 4h；600-700 DEG C is being heated to, and is being incubated 12h；It is cooled to 150 DEG C；
D. roughing and finishing are carried out to housing；
E. cleaned, chromium plating process in chromium plating liquid is put into after cleaning；Chromium plating liquid includes：40 parts of chromium sulfate, aluminum sulfate：10 parts,
Magnesium sulfate：30 parts, sulfuric acid：15 parts, lauryl sodium sulfate：5 parts, nano aluminum nitride：7 parts, 4 parts of oxalic acid, 4 parts of methanol, chlorination
2 parts of ammonium, 5 parts of buffer, 4 parts of polyvinyl alcohol, deionized water：95 parts；
F. cleaned, then dried after chromium plating.
Further, that is cleaned in step e concretely comprises the following steps：Housing oil removing is polished, then cleaned with water；Remove again
Rust processing, then cleaned with water；Finally cleaned with deionized water.
The invention has the advantages that, machinery high using the surface quality of reducer shell made from the method for the present invention
Performance is good, is not in crackle, will not cause gas leakage, and coating deposition rate is fast, has more preferable decay resistance and wearability
Can, reach more excellent chromium coating hardness, extend service life.
Embodiment
It is described in further detail below by specific examples of the implementation and to the present invention.
Provided by the present invention for the manufacture method of high pressure direct injection pressure reducer, comprise the following steps：
A. the chemical component weight percentage of pressure reducer housing is：C：0.15-0.35%, Si：0.6-0.9%, Mn：0.6-1.5%,
Ti：0.15-0.25%, Cr：0.3-1.1%, Ni：0.5-1.3%, remaining is iron；
B. mentioned component melting is obtained into mixed liquor, by mixed liquor injection die casting shaping；
C. the housing of shaping is cooled down, when temperature drops to 350 DEG C, is again heated to 600-700 DEG C, and be incubated 5h；It is cold again
But to 300-400 DEG C, and it is incubated 4h；600-700 DEG C is being heated to, and is being incubated 12h；It is cooled to 150 DEG C；
D. roughing and finishing are carried out to housing；
E. cleaned, chromium plating process in chromium plating liquid is put into after cleaning；Chromium plating liquid includes：40 parts of chromium sulfate, aluminum sulfate：10 parts,
Magnesium sulfate：30 parts, sulfuric acid：15 parts, lauryl sodium sulfate：5 parts, nano aluminum nitride：7 parts, 4 parts of oxalic acid, 4 parts of methanol, chlorination
2 parts of ammonium, 5 parts of buffer, 4 parts of polyvinyl alcohol, deionized water：95 parts；
F. cleaned, then dried after chromium plating.
That is cleaned in step e concretely comprises the following steps：Housing oil removing is polished, then cleaned with water；Processing of rust removing again, then
Cleaned with water；Finally cleaned with deionized water.
The thickness of chromium coating is 0.08mm.
The chemical component weight percentage of housing can specifically use：C：0.3%, Si：0.9%, Mn：0.9%, Ti：0.25%,
Cr：0.8%, Ni：1.2%, remaining is iron.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, there can be various modifications and variations in the spirit and principles in the present invention, these equivalent modifications or replacement etc.,
It is all contained within protection scope of the present invention.
Claims (2)
1. a kind of manufacture method for high pressure direct injection pressure reducer, it is characterised in that comprise the following steps：
A. the chemical component weight percentage of pressure reducer housing is：C：0.15-0.35%, Si：0.6-0.9%, Mn：0.6-1.5%,
Ti：0.15-0.25%, Cr：0.3-1.1%, Ni：0.5-1.3%, remaining is iron；
B. mentioned component melting is obtained into mixed liquor, by mixed liquor injection die casting shaping；
C. the housing of shaping is cooled down, when temperature drops to 350 DEG C, is again heated to 600-700 DEG C, and be incubated 5h；It is cold again
But to 300-400 DEG C, and it is incubated 4h；600-700 DEG C is being heated to, and is being incubated 12h；It is cooled to 150 DEG C；
D. roughing and finishing are carried out to housing；
E. cleaned, chromium plating process in chromium plating liquid is put into after cleaning；Chromium plating liquid includes：40 parts of chromium sulfate, aluminum sulfate：10 parts,
Magnesium sulfate：30 parts, sulfuric acid：15 parts, lauryl sodium sulfate：5 parts, nano aluminum nitride：7 parts, 4 parts of oxalic acid, 4 parts of methanol, chlorination
2 parts of ammonium, 5 parts of buffer, 4 parts of polyvinyl alcohol, deionized water：95 parts；
F. cleaned, then dried after chromium plating.
2. the manufacture method according to claim 1 for high pressure direct injection pressure reducer, it is characterised in that carried out in step e
Cleaning concretely comprises the following steps：Housing oil removing is polished, then cleaned with water；Processing of rust removing again, then cleaned with water；Finally spend from
Sub- water cleaning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710414623.7A CN107378385A (en) | 2017-06-05 | 2017-06-05 | A kind of manufacture method for high pressure direct injection pressure reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710414623.7A CN107378385A (en) | 2017-06-05 | 2017-06-05 | A kind of manufacture method for high pressure direct injection pressure reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107378385A true CN107378385A (en) | 2017-11-24 |
Family
ID=60331947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710414623.7A Withdrawn CN107378385A (en) | 2017-06-05 | 2017-06-05 | A kind of manufacture method for high pressure direct injection pressure reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107378385A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3767012A1 (en) * | 2019-07-18 | 2021-01-20 | The Boeing Company | Functional chromium alloy plating from trivalent chromium electrolytes |
-
2017
- 2017-06-05 CN CN201710414623.7A patent/CN107378385A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3767012A1 (en) * | 2019-07-18 | 2021-01-20 | The Boeing Company | Functional chromium alloy plating from trivalent chromium electrolytes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171124 |
|
| WW01 | Invention patent application withdrawn after publication |