CN112159950A - Cylinder body nitriding treatment process - Google Patents
Cylinder body nitriding treatment process Download PDFInfo
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- CN112159950A CN112159950A CN202010944110.9A CN202010944110A CN112159950A CN 112159950 A CN112159950 A CN 112159950A CN 202010944110 A CN202010944110 A CN 202010944110A CN 112159950 A CN112159950 A CN 112159950A
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- cylinder body
- cylinder
- nitriding treatment
- nitriding
- treatment process
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- 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
- C23C8/28—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 one step
-
- 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
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- 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
The invention relates to a cylinder nitriding treatment process, which specifically comprises the following steps: 1) carrying out hard oxidation treatment on the inner wall of the cylinder body; 2) grinding the inner wall of the cylinder body after the hard oxidation treatment to remove an oxide layer; 3) nitriding the cylinder body with the oxide layer removed for 4-8 hours at the temperature of below 870 ℃, naturally cooling, and repeatedly treating for 4-6 times. The invention has the advantages that: the cylinder body treated by the process has the advantages of good wear-resisting effect, long service life of an engine, good energy-saving effect and lasting power, and has better popularization prospect in the field of cylinder body nitriding treatment.
Description
Technical Field
The invention relates to a cylinder nitriding treatment process.
Background
The State administration officially publishes the method for managing the recovery of scrapped motor vehicles (hereinafter referred to as the method), and the method is implemented from 6 months and 1 day in 2019. The 'method for managing the recovery of scraped cars' published by the State administration on 6, 16 th of 2001 is abandoned at the same time. In order to promote the development of circular economy, the 'five-large assembly' (an engine, a steering gear, a transmission, a front axle, a rear axle and a frame) of the disassembled scrapped motor vehicle has remanufacturing conditions according to the regulation of 'method', and can be sold to enterprises with remanufacturing capability according to the relevant national regulation and recycled through remanufacturing. The recycling value of the scrapped motor vehicles is obviously improved, so that a long-acting mechanism for scrapping and updating the automobiles is formed, and the elimination of old motor vehicles is accelerated. However, the 'method' also indicates that an effective safety management system needs to be established, so that a recycling enterprise is required to faithfully record the information of the quantity, the model, the flow direction and the like of main components such as 'five assemblies' of the scrapped motor vehicle and upload the information to a recycling information system, and the purpose of checking the source and tracing the destination is achieved. For the parts except the 'five assemblies' of the disassembled scrapped motor vehicle, the 'method' stipulates that the parts can be continuously used and meet the mandatory national standards for guaranteeing personal and property safety and the like, can be sold, but should mark 'scrapped motor vehicle reuse parts'.
The nitriding treatment of the cylinder body can effectively improve the hardness and the wear resistance of the surface of a workpiece, and is one of the developing strengthening methods with good effect on the aluminum alloy. Because the chemical property of the aluminum is very active, natural oxidation films with good stability exist on the surfaces of pure aluminum and aluminum alloy. According to the moisture content in the environment, the thickness of the oxide film can reach about 0.1 μm at the maximum, which seriously hinders the diffusion of nitrogen atoms into the aluminum matrix and also seriously influences the effect produced by the aluminum and aluminum alloy nitriding process. In order to eliminate the influence of an oxidation film and realize the surface nitridation of the aluminum alloy, a glow discharge plasma nitriding process is mainly researched and adopted at present. At present, no process with good nitriding treatment effect for the aluminum alloy cylinder body exists.
Disclosure of Invention
The present invention is directed to a cylinder nitridation process to solve the above problems.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: a cylinder nitriding treatment process specifically comprises the following steps:
1) carrying out hard oxidation treatment on the inner wall of the cylinder body;
2) grinding the inner wall of the cylinder body after the hard oxidation treatment to remove an oxide layer;
3) nitriding the cylinder body with the oxide layer removed for 4-8 hours at the temperature of below 870 ℃, naturally cooling, and repeatedly treating for 4-6 times.
Preferably, the nitriding treatment in step 3) is performed by nitrocarburizing.
Preferably, the step 3) is performed with nitridation treatment at 530 ℃ and 560 ℃.
Preferably, each nitriding treatment time in the step 3) is 5 to 7 hours.
Preferably, the nitriding treatment in the step 3) is carried out in a nitriding furnace.
Preferably, the nitriding treatment in the step 3) is repeated 5 times.
As a preferred scheme, the cylinder body is one of a single cylinder sleeve, an alloy cast iron cylinder body, an aluminum alloy cylinder sleeve alloy cast iron cylinder body combination, a nodular cast iron cylinder sleeve alloy cast iron cylinder body combination and an aluminum alloy cylinder body.
The invention has the advantages that: the cylinder body treated by the process has the advantages of good wear-resisting effect, long service life of an engine, good energy-saving effect and lasting power, and has better popularization prospect in the field of cylinder body nitriding treatment.
Detailed Description
The invention is illustrated below by means of specific examples, without being restricted thereto.
Example 1
A cylinder nitriding treatment process specifically comprises the following steps:
1) carrying out hard oxidation treatment on the inner wall of the single cylinder sleeve;
2) the inner wall of the single cylinder sleeve after the hard oxidation treatment is ground to remove an oxidation layer;
3) and (3) carrying out sulfur-nitrogen-carbon co-cementation treatment on the single cylinder sleeve with the oxide layer removed at 560 ℃ for 7 hours, then naturally cooling, and repeatedly treating for 5 times.
Example 2
A cylinder nitriding treatment process specifically comprises the following steps:
1) hard oxidation treatment is carried out on the inner wall of the alloy cast iron cylinder body;
2) the inner wall of the alloy cast iron cylinder body after the hard oxidation treatment is ground to remove an oxide layer;
3) and (3) carrying out sulfur-nitrogen-carbon co-cementation treatment on the alloy cast iron cylinder body with the oxide layer removed at 530 ℃ for 6 hours, then naturally cooling, and repeatedly treating for 5 times.
Example 3
A cylinder nitriding treatment process specifically comprises the following steps:
1) carrying out hard oxidation treatment on the combined inner wall of the alloy cast iron cylinder body of the aluminum alloy cylinder sleeve;
2) grinding the alloy cast iron cylinder body combination of the aluminum alloy cylinder sleeve after the hard oxidation treatment to remove an oxidation layer;
3) and (3) carrying out sulfur-nitrogen-carbon co-cementation treatment on the aluminum alloy cylinder sleeve alloy cast iron cylinder body combination with the oxide layer removed for 5 hours at 560 ℃, then naturally cooling, and repeatedly treating for 5 times.
Example 4
A cylinder nitriding treatment process specifically comprises the following steps:
1) hard oxidation treatment is carried out on the combined inner wall of the nodular cast iron cylinder sleeve alloy cast iron cylinder body;
2) grinding the inner wall of the nodular cast iron cylinder liner alloy cast iron cylinder body combination subjected to hard oxidation treatment to remove an oxidation layer;
3) the nodular cast iron cylinder liner alloy cast iron cylinder body combination with the oxide layer ground off is subjected to sulfur-nitrogen-carbon co-cementation treatment at 800 ℃ for 4 hours, then is naturally cooled, and is repeatedly treated for 4 times.
Example 5
A cylinder nitriding treatment process specifically comprises the following steps:
1) hard oxidation treatment is carried out on the inner wall of the alloy cast iron cylinder body;
2) the inner wall of the alloy cast iron cylinder body after the hard oxidation treatment is ground to remove an oxide layer;
3) and (3) carrying out sulfur-nitrogen-carbon co-cementation treatment on the alloy cast iron cylinder body with the oxide layer removed for 5 hours at 850 ℃, then naturally cooling, and repeatedly treating for 5 times.
Example 6
A cylinder nitriding treatment process specifically comprises the following steps:
1) carrying out hard oxidation treatment on the inner wall of the aluminum alloy cylinder body;
2) the inner wall of the aluminum alloy cylinder body after the hard oxidation treatment is ground to remove an oxide layer;
3) and (3) carrying out sulfur-nitrogen-carbon co-cementation treatment on the aluminum alloy cylinder body with the oxide layer removed at 700 ℃ for 8 hours, naturally cooling, and repeatedly treating for 6 times.
The principle of the invention is as follows: after the sulfur-nitrogen-carbon co-cementation treatment of the aluminum alloy cylinder body is finished, the prior hard oxidation treatment can cause poor heat dissipation performance of the aluminum alloy, and the aluminum alloy can be selectively treated or not treated under different purposes, but in the prior art, an air-cooled engine is required to be used for carrying out gasified aluminum powder sand blasting on the outside of the cylinder to achieve the heat dissipation effect, a special stone mill can be used for removing an oxidation layer for the water-cooled engine to achieve the heat dissipation effect, and if measures for removing the oxidation layer are not taken, other parts can be damaged, such as a cylinder head valve and a combustion chamber of the cylinder head part can be melted.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The cylinder body nitriding treatment process is characterized by comprising the following steps:
1) carrying out hard oxidation treatment on the inner wall of the cylinder body;
2) grinding the inner wall of the cylinder body after the hard oxidation treatment to remove an oxide layer;
3) nitriding the cylinder body with the oxide layer removed for 4-8 hours at the temperature of below 870 ℃, naturally cooling, and repeatedly treating for 4-6 times.
2. The cylinder nitriding treatment process according to claim 1, wherein: the nitriding treatment in the step 3) adopts a sulfur-nitrogen-carbon co-cementation mode.
3. The cylinder nitriding treatment process according to claim 1, wherein: the step 3) is performed with nitridation treatment at 530 ℃ and 560 ℃.
4. The cylinder nitriding treatment process according to claim 1, wherein: the time of each nitriding treatment in the step 3) is 5-7 hours.
5. The cylinder nitriding treatment process according to claim 1, wherein: the nitriding treatment in the step 3) is carried out in a nitriding furnace.
6. The cylinder nitriding treatment process according to claim 1, wherein: the nitriding treatment in the step 3) is repeated for 5 times.
7. The cylinder block nitriding treatment process according to any one of claims 1 to 6, wherein: the cylinder body is one of a single cylinder sleeve, an alloy cast iron cylinder body, an aluminum alloy cylinder sleeve and alloy cast iron cylinder body combination, a nodular cast iron cylinder sleeve and alloy cast iron cylinder body combination and an aluminum alloy cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010944110.9A CN112159950A (en) | 2020-09-10 | 2020-09-10 | Cylinder body nitriding treatment process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010944110.9A CN112159950A (en) | 2020-09-10 | 2020-09-10 | Cylinder body nitriding treatment process |
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| CN112159950A true CN112159950A (en) | 2021-01-01 |
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| CN202010944110.9A Pending CN112159950A (en) | 2020-09-10 | 2020-09-10 | Cylinder body nitriding treatment process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855379A (en) * | 2021-03-02 | 2021-05-28 | 马鞍山市小沈车行 | Power control system for water-cooled engine of electric automobile |
Citations (5)
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|---|---|---|---|---|
| WO2004011196A1 (en) * | 2002-07-26 | 2004-02-05 | 3M Innovative Properties Company | Abrasive product, method of making and using the same, and apparatus for making the same |
| CN102234757A (en) * | 2011-07-07 | 2011-11-09 | 佛山华研力合表面技术有限公司 | Surface treatment method of cast iron part |
| CN208203840U (en) * | 2018-05-22 | 2018-12-07 | 浙江柏瑞汽配有限公司 | A kind of corrosion resistant type release bearing |
| KR20200070849A (en) * | 2018-12-10 | 2020-06-18 | 신기산업 주식회사 | Method of thermal nitriding of workpiece surface |
| CN111621830A (en) * | 2020-06-09 | 2020-09-04 | 深圳市富济新材料科技有限公司 | Aluminum alloy surface treatment process |
-
2020
- 2020-09-10 CN CN202010944110.9A patent/CN112159950A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004011196A1 (en) * | 2002-07-26 | 2004-02-05 | 3M Innovative Properties Company | Abrasive product, method of making and using the same, and apparatus for making the same |
| CN102234757A (en) * | 2011-07-07 | 2011-11-09 | 佛山华研力合表面技术有限公司 | Surface treatment method of cast iron part |
| CN208203840U (en) * | 2018-05-22 | 2018-12-07 | 浙江柏瑞汽配有限公司 | A kind of corrosion resistant type release bearing |
| KR20200070849A (en) * | 2018-12-10 | 2020-06-18 | 신기산업 주식회사 | Method of thermal nitriding of workpiece surface |
| CN111621830A (en) * | 2020-06-09 | 2020-09-04 | 深圳市富济新材料科技有限公司 | Aluminum alloy surface treatment process |
Non-Patent Citations (1)
| Title |
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| 甄建政 等: "钢铁材料低温表面渗氮技术的研究进展", 《热加工工艺》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112855379A (en) * | 2021-03-02 | 2021-05-28 | 马鞍山市小沈车行 | Power control system for water-cooled engine of electric automobile |
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