CN109972075A - A kind of motor-car valve body anticorrosion treatment technology - Google Patents
A kind of motor-car valve body anticorrosion treatment technology Download PDFInfo
- Publication number
- CN109972075A CN109972075A CN201910361779.2A CN201910361779A CN109972075A CN 109972075 A CN109972075 A CN 109972075A CN 201910361779 A CN201910361779 A CN 201910361779A CN 109972075 A CN109972075 A CN 109972075A
- Authority
- CN
- China
- Prior art keywords
- valve body
- body surface
- motor
- carried out
- bead
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/02—Pretreatment of the material to be coated
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/34—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases more than one element being applied in more than one step
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
Present invention relates particularly to a kind of surface preservative treatment techniques of motor-car valve body, comprising the following steps: the valve body for carrying out preservative treatment is worked into demand size；Bead is carried out to valve body surface；The valve body surface of bead is activated；Nonmetalloid composite cementation is carried out to the valve body surface after activation；Oxygen atom composite cementation is carried out to the valve body surface after infiltration nonmetalloid；Valve body after heat preservation is cooled down, when being cooled to room temperature, valve body surface is cleaned；Bead is carried out again to valve body surface；Oxygen atom composite cementation is carried out again to the valve body surface after bead；To the valve body after heat preservation carry out it is cooling, clean and upper lubricating oil.The present invention is carried out surface to valve body and is handled by regulation valve body process of surface treatment and process, not only can achieve the good performances such as corrosion-resistant, but also environmentally friendly, and do not have heavy metal pollution.
Description
Technical field
Present invention relates particularly to a kind of surface preservative treatment techniques of motor-car valve body.
Background technique
Valve body is one of essential part on high-speed rail motor-car, in order to prolong its service life, generally require to its into
Row preservative treatment, traditional treatment process is: valve body blank-forging roughing-accurate grinding processing-electrodeposited chromium-throwing
Light-decoration-finished product, such technique can achieve certain raising hardness and corrosion-resistant effect in principle, but make
It is handled with traditional handicraft, life of product loses well, and technical requirements now are also increasingly not achieved in resistance to corrosion, more important
Be to need pickling, plating hard chrome etc. all serious pollution environment.
Summary of the invention
In order to solve the above-mentioned technical problem, the present invention carries out valve body by regulation valve body process of surface treatment and process
Surface is handled, and not only can achieve the good performances such as corrosion-resistant, but also environmentally friendly, and do not have heavy metal-polluted
Dye.
A kind of the technical solution adopted by the present invention are as follows: motor-car valve body anticorrosion treatment technology, comprising the following steps:
Step 1: the valve body for carrying out preservative treatment is worked into demand size, deformation allowance is not needed；
Step 2: carrying out bead to valve body surface；
Step 3: the valve body surface to bead activates, activation temperature is 300~400 DEG C, soaking time 30
~60min；
Step 4: carrying out nonmetalloid composite cementation to the valve body surface after activation, 2~5h, heat preservation temperature are kept the temperature after the completion
Degree is 500~600 DEG C；
Step 5: to penetrate into nonmetalloid after valve body surface carry out oxygen atom composite cementation, after the completion keep the temperature 0.5~
1.2h, holding temperature are 400~450 DEG C；
Step 6: being cooled down to the valve body after heat preservation, when being cooled to room temperature, valve body surface is cleaned.
A kind of motor-car valve body anticorrosion treatment technology as described above further illustrates to be to use in the step 2 rigid
Beautiful powder carries out shot-peening.
A kind of motor-car valve body anticorrosion treatment technology as described above further illustrates to be that 150 are used in the step 7
The bead of~200 mesh carries out shot-peening.
A kind of motor-car valve body anticorrosion treatment technology as described above, further illustrates and is, nonmetallic in the step 4
Elements compounding is seeped using nitrocarburizing.
A kind of motor-car valve body anticorrosion treatment technology as described above, further illustrates and is, in the step 6, to heat preservation
Valve body afterwards carries out closed ventilation cooling, and the gas being passed through is inert gas.
A kind of motor-car valve body anticorrosion treatment technology as described above further illustrates to be that the inert gas is nitrogen.
The beneficial effects of the present invention are: the present invention carries out table by regulation valve body process of surface treatment and process, to valve body
Face is handled, and not only can achieve the good performances such as corrosion-resistant, but also environmentally friendly, and do not have heavy metal pollution.
This technological parameter can accomplish that surface salt spray test is more than 100 hours, and conventional chromate part product salt spray test also reaches
Less than 48 hours, domestic pharmaceutical industry industry level can only also accomplish 11 hours even than plating copper products salt spray test it is also poor, foreign countries it is similar
Product can only also meet 48~72 hours, so this technique is a kind of environmentally friendly, energy saving, the compound aseptic technic of success excellent
Process of surface treatment greatly reduces risk of environmental pollution, improves product quality.
Detailed description of the invention
Fig. 1 is valve body by the sectional schematic diagram after preservative treatment.
Specific embodiment
Embodiment of the present invention is further elaborated with reference to the accompanying drawing.
A kind of motor-car valve body anticorrosion treatment technology provided in this embodiment, comprising the following steps:
Step 1: the valve body for carrying out preservative treatment is worked into demand size, do not need deformation allowance, can directly by
The valve body of precision forging is machined directly to demand size, this technique does not need to carry out deformation allowance, is guaranteeing technique processing matter
While amount, to enormously simplify the treatment process in valve body later period, the valve body overall processing time has been saved；
Step 2: carrying out bead to valve body surface；High-strength superfine ultra-fine shot-peening is carried out to valve body surface using compressed air shotblasting machine, with
It removes forging burr and improves valve body surface performance, the compressed air shotblasting machine is the prior art, does not do specifically elaborate here, is had
Body preferably, can using corundum powder carry out shot-peening, need to clear up the oxide skin of valve body surface, anti-block before shot-peening
Compound influences subsequent infiltration step；
Step 3: the valve body surface to bead activates, activation temperature is 300~400 DEG C, soaking time 30
~60min；To material surface activate it is main there are two effects, first is that the further oil residues in cleaning valve body surface,
Second is that activated material surface, catalysis promotes nonmetallic infiltration effect, prepares for next step, activation temperature and soaking time can
To carry out multiple combinations in numberical range, such as activation temperature is 400 DEG C, soaking time 35min, for example, activation temperature
Degree is 300 DEG C, and soaking time 55min does not carry out citing elaboration one by one here.
Step 4: carrying out nonmetalloid composite cementation to the valve body surface after activation, 2~5h, heat preservation temperature are kept the temperature after the completion
Degree is 500~600 DEG C, and holding temperature and soaking time can also be 580 DEG C there are many combination, such as holding temperature, is protected
The warm time is 3h, and for example, holding temperature is 500 DEG C, soaking time 5h does not carry out citing elaboration one by one here；To valve body
Surface carries out nonmetallic infiltration, primarily to the abrasion resistance and hardness of product is improved, but different from traditional surface treatment,
In the improvement for penetrating into hesitation tooling and equipment construction, be conducive to the rolling and flowing of tank liquor, can be improved product surface and penetrate into speed
Degree and reduction deformation of products.
Preferably, the nonmetalloid composite cementation can use nitrocarburizing, this is also a kind of preferred embodiment certainly,
Other nonmetalloid composite cementations can also be selected according to the difference of processing material.
Step 5: to penetrate into nonmetalloid after valve body surface carry out oxygen atom composite cementation, after the completion keep the temperature 0.5~
1.2h, holding temperature are 400~450 DEG C, and holding temperature and soaking time can also there are many combinations, such as holding temperature
It is 400 DEG C, soaking time 1h, for example, holding temperature is 450 DEG C, soaking time 0.5h does not illustrate one by one here
It illustrates；Valve body surface is aoxidized, the corrosion potential of product can be improved, reduces the coefficient of friction of workpiece surface, beautifies work
Part surface.
Step 6: being cooled down to the valve body after heat preservation, when being cooled to room temperature, valve body surface is cleaned, as excellent
Choosing can carry out closed ventilation to the valve body after heat preservation and cool down, and the gas being passed through is inert gas, the specific inert gas
It can select as nitrogen, using the cooling product of nitrogen atmosphere, not only surface color is uniform, but also appearance uniformity can be more preferable.
Step 7: carry out bead again to valve body surface, craft or mechanic shot peening all can, preferably, can be with
Shot-peening is carried out using the bead of 150~200 mesh, specifically shot-peening can be carried out using the bead of 180 mesh.
Step 8: carrying out oxygen atom composite cementation again to the valve body surface after shot-peening, 0.5~1.2h is kept the temperature after the completion, is protected
Temperature is 400~450 DEG C, i.e., carries out the process operations of step 5 to it again, further increase the corrosion resisting property of workpiece.
Step 9: to the valve body after heat preservation carry out it is cooling, clean and upper lubricating oil, specifically can be clear using ultrasonic wave
It washes, finally obtains finished product.The present invention is carried out surface to valve body and is handled by regulation valve body process of surface treatment and process,
It not only can achieve the good performances such as corrosion-resistant, but also environmentally friendly, and do not have heavy metal pollution.
As shown in Figure 1, valve body surface is using after this technique, a nitride layer, white layer can be formed in valve body surface, nitride layer, white layer with a thickness of
11.7 μm, it is greater than 700HV through measurement hardness0.1, while valve body carries out salt spray test to treated, this technological parameter can be done
It is more than 100 hours to surface salt spray test, conventional chromate part product salt spray test is also not achieved 48 hours, and domestic pharmaceutical industry industry is horizontal
Also can only accomplish 11 hours or even also poorer than plating copper products salt spray test, external similar products can only also meet 48~72 hours,
So this technique is a kind of excellent process of surface treatment of aseptic technic environmentally friendly, energy saving, success is compound, ring is greatly reduced
Border pollution risk, improves product quality.
The present invention is not limited to examples detailed above, in claims of the present invention limited range, art technology
The various deformations or amendments that personnel can make without creative work are protected by this patent.
Claims (6)
1. a kind of motor-car valve body anticorrosion treatment technology, which comprises the following steps:
Step 1: the valve body for carrying out preservative treatment is worked into demand size, deformation allowance is not needed；
Step 2: carrying out bead to valve body surface；
Step 3: the valve body surface to bead activates, activation temperature is 300~400 DEG C, soaking time is 30~
60min；
Step 4: carrying out nonmetalloid composite cementation to the valve body surface after activation, 2~5h is kept the temperature after the completion, and holding temperature is
500~600 DEG C；
Step 5: carrying out oxygen atom composite cementation to the valve body surface after infiltration nonmetalloid, 0.5~1.2h is kept the temperature after the completion,
Holding temperature is 400~450 DEG C；
Step 6: being cooled down to the valve body after heat preservation, when being cooled to room temperature, valve body surface is cleaned.
2. a kind of motor-car valve body anticorrosion treatment technology according to claim 1, it is characterised in that: adopted in the step 2
Shot-peening is carried out with corundum powder.
3. a kind of motor-car valve body anticorrosion treatment technology according to claim 2, it is characterised in that: adopted in the step 7
Shot-peening is carried out with the bead of 150~200 mesh.
4. a kind of motor-car valve body anticorrosion treatment technology according to claim 1, it is characterised in that: in the step 4,
Nonmetalloid composite cementation is using nitrocarburizing.
5. a kind of motor-car valve body anticorrosion treatment technology according to claim 1, it is characterised in that: in the step 6,
Closed ventilation cooling is carried out to the valve body after heat preservation, the gas being passed through is inert gas.
6. a kind of motor-car valve body anticorrosion treatment technology according to claim 5, it is characterised in that: the inert gas is
Nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910361779.2A CN109972075A (en) | 2019-04-30 | 2019-04-30 | A kind of motor-car valve body anticorrosion treatment technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910361779.2A CN109972075A (en) | 2019-04-30 | 2019-04-30 | A kind of motor-car valve body anticorrosion treatment technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109972075A true CN109972075A (en) | 2019-07-05 |
Family
ID=67087436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910361779.2A Pending CN109972075A (en) | 2019-04-30 | 2019-04-30 | A kind of motor-car valve body anticorrosion treatment technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109972075A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110665773A (en) * | 2019-09-29 | 2020-01-10 | 瑞安市科达汽车配件有限公司 | Processing technology of high-pressure flow environment-friendly integrated electric fuel pump integrated shell |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105506542A (en) * | 2015-12-23 | 2016-04-20 | 四川全丰新材料科技有限公司 | New QPQ nitrocarburizing corrosion resistance process for iron casting surface |
| CN107502852A (en) * | 2017-08-18 | 2017-12-22 | 无锡市奕珺金属改性技术有限公司 | Component surface processing equipment and component surface handling process |
| JP6576232B2 (en) * | 2015-12-10 | 2019-09-18 | 曙ブレーキ工業株式会社 | Soft-nitriding steel member and manufacturing method thereof, pressure plate, and brake pad |
-
2019
- 2019-04-30 CN CN201910361779.2A patent/CN109972075A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6576232B2 (en) * | 2015-12-10 | 2019-09-18 | 曙ブレーキ工業株式会社 | Soft-nitriding steel member and manufacturing method thereof, pressure plate, and brake pad |
| CN105506542A (en) * | 2015-12-23 | 2016-04-20 | 四川全丰新材料科技有限公司 | New QPQ nitrocarburizing corrosion resistance process for iron casting surface |
| CN107502852A (en) * | 2017-08-18 | 2017-12-22 | 无锡市奕珺金属改性技术有限公司 | Component surface processing equipment and component surface handling process |
Non-Patent Citations (1)
| Title |
|---|
| 徐修炎等: "《钢铁件热加工技术及质量控制》", 31 December 1986, 四川科学技术出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110665773A (en) * | 2019-09-29 | 2020-01-10 | 瑞安市科达汽车配件有限公司 | Processing technology of high-pressure flow environment-friendly integrated electric fuel pump integrated shell |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106514163B (en) | A method of it improving conical gear and is hot-forged precision | |
| CN101648334A (en) | Manufacturing technique of austenitic stainless steel cold-rolled plate with good surface performance | |
| CN102847734B (en) | Manufacturing method of 18CrNi8 coiled cold-drawn material for cold extrusion and its product | |
| CN111660208A (en) | Composite surface treatment method for prolonging service life of metal processing tool | |
| CN108866472A (en) | A kind of metallic material surface treating method | |
| CN109402351A (en) | A kind of metal works processing method | |
| CN108971910A (en) | A kind of processing technology of end-tooth | |
| CN112108597A (en) | Deformed high-temperature alloy blade forging and precision forging method thereof | |
| CN106863142A (en) | A kind of method of gear composite surface intensive treatment | |
| CN109652757A (en) | A kind of high vacuum squeezes the surface recombination processing method of compression mod | |
| CN109972075A (en) | A kind of motor-car valve body anticorrosion treatment technology | |
| CN109274231A (en) | A kind of processing technology with titanium production motor case | |
| CN107335591A (en) | Bearing cage workmanship of spraying plastics and equipment | |
| CN104759717B (en) | The polishing processing method in the metallic rotary face based on double peak pulse current electrochemical copolymerization machinery | |
| CN110280973A (en) | A kind of hydraulic cylinder manufacture method | |
| CN106625270A (en) | Stainless-steel surface treatment technology | |
| CN108723727B (en) | Rear brake caliper piston and processing method thereof | |
| CN111593294B (en) | High-performance shock absorber steel pipe and processing method thereof | |
| Davis | Surface engineering of stainless steels | |
| CN111975297B (en) | Preparation and rolling post-treatment strengthening process for high-energy micro-arc deposition layer on copper alloy surface | |
| CN110016636A (en) | A kind of motor-car triangle support anticorrosion treatment technology | |
| CN111644570B (en) | Production method of front and rear ring bearing inner rings | |
| CN114540803A (en) | Low-carbon chromium-nickel martensite high-strength steel and passivation method and application thereof | |
| CN110408882B (en) | Anti-carburizing treatment method | |
| CN110004402A (en) | A kind of motor-car brake steel back anticorrosion treatment technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190705 |