CN85202400U - Chromium plating cyclinder jacket with thin stell pipe - Google Patents
Chromium plating cyclinder jacket with thin stell pipe Download PDFInfo
- Publication number
- CN85202400U CN85202400U CN 85202400 CN85202400U CN85202400U CN 85202400 U CN85202400 U CN 85202400U CN 85202400 CN85202400 CN 85202400 CN 85202400 U CN85202400 U CN 85202400U CN 85202400 U CN85202400 U CN 85202400U
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- CN
- China
- Prior art keywords
- chromium plating
- chromium
- reticulate pattern
- thin
- bearing structure
- 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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- Electroplating And Plating Baths Therefor (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
The utility model relates to a steel pipe thin wall chromium plating cylinder sleeve which is processed and molded by soft steel seamless steel pipes. The utility model is characterized in that the inner surface of the utility model is processed in an improved spongy chromium plating method and is provided with a chromium plating layer of a deep reticulate pattern groove oil storing structure, the thickness of the chromium plating layer is between 0.04 mm and 0.09 mm, and the depth of the chromium plating layer reticulate pattern groove oil storing structure is equal to from 40% to 100% of the thickness of the chromium plating layer. The utility model has the advantages of easy fabrication, short periodicity, long service life, raw material saving, good oil storing structure and abrasion resistance.
Description
The utility model relates to a kind of key part on the cylinder, and steel pipe thin-walled chromium plating cylinder liner is applicable on the cylinder of automobile, tractor engine and uses.
Cast iron or cast-iron alloy cylinder sleeve that tratitional technology is produced, its wall thickness, in course of working, utilization rate of raw materials is low, brings volume big to existing tractor and motor car engine, and power is put forward not high consequence.
Be to improve engine power, energy saving consumption and saving material prolongs motor working life.Increase the power team product, the good thin-wall cylinder casing of development wear-resisting property is paid attention to by people day by day.
Because cylinder sleeve is hidden position work at the heart of starting a machine, high temperature, poor lubrication, serious wear, therefore seeking suitable surface treatment also is the center that people were studied to obtain good oil-bearing structure raising cylinder sleeve wear-resisting property.
Britain, Japan also have producer to prepare mild steel thin-walled steel bushing at present, but their general steel plate formings that adopts, utilization rate of raw materials is low, and the surperficial chromium coating reticulate pattern groove oil-bearing structure degree of depth is controlled to be about 30～35% of chromium coating thickness, their wear-resisting propertys are poor, and the life-span is short
This practical purpose provides a kind of steel pipe thin-walled steel bushing with new internal surface oil-bearing structure, so that improve the working life of wear-resisting property and prolongation cylinder sleeve.
For this reason, the utility model is designed a kind of steel pipe thin-wall cylinder casing with new internal surface oil-bearing structure, it is characterized in that its internal surface has the chromium coating of dark reticulate pattern groove oil-bearing structure, chromium coating thickness is 0.04～0.09 millimeter, and the degree of depth of chromium coating reticulate pattern groove oil-bearing structure is 40%～100% of a chromium coating thickness.The cylinder body of this cylinder sleeve is that the mild steel seamless steel pipe is processed into, and makes easily, saves material, and is with short production cycle; Because its oil-bearing structure is good, and good lubricating condition can be provided in cylinder, cylinder sleeve is prolonged working life widely but also can gives full play to the due superior function of thin-wall cylinder casing.
Furthermore bright in conjunction with the accompanying drawings by the following examples the utility model.
Fig. 1 is a steel pipe thin-wall cylinder casing shape assumption diagram.
Fig. 2 is the crystalline phase analysis chart of reticulate pattern oil-bearing structure surface distributed on the inner surface of cylinder liner chromium coating.。
Fig. 3 is a cylinder sleeve tangent plane crystalline phase analysis chart.
1～1.5 millimeter chromium plating cylinder liner of steel pipe thin-walled cylinder body (1) is to adopt No. 20 mild steel seamless steel pipes through the cold-drawn or the machine shaping of exerting pressure, this manufacturing fraction, and work simplification to the utilization rate of raw materials height, can reach about 80%.Inner surface treatment is to adopt following improved spongy chromium plating method to carry out;
Electrolyte prescription:
Chromic anhydride (Cro
3) 230～250 grams per liters, sulfuric acid (H
2So
4)
1.8～24 grams per liters, chromic anhydride/sulfuric acid (Cro
3/ H
2So
4) 100/0.85～10.9, trivalent chromium is controlled in 3～5 grams per liters; 58～60 ℃ ± 1 ℃ of chromium plating temperature, 40～50 amperes/decimeter of current densities
2, 28～40 amperes/decimeter of porosity current densities (anodic souring)
2, 4～6 minutes porosity time.
Chromium coating (2) online groove groove oil-bearing structure (3) directly forms in chrome-plating process, 0.04～0.09 millimeter of chromium coating (2) thickness, and reticulate pattern groove oil-bearing structure (3) degree of depth is 40～100% of a chromium coating thickness.
All changes and improvements that do not break away from inner characteristic of the present utility model should belong within the claim scope of the present utility model.
Claims (4)
1, relates to a kind of thin-walled chromium plating cylinder liner of engine part, it is characterized in that its internal surface has the chromium coating of dark reticulate pattern oil-bearing structure.
2, according to the described thin-walled chromium plating of claim 1 cylinder liner, dark reticulate pattern groove oil-bearing structure is characterised in that chromium coating thickness is 0.04～0.09 millimeter, and the chromium coating reticulate pattern groove oil-bearing structure degree of depth is 40～100% of a chromium coating thickness.
3, the thin wall cylinder cover of asking according to claim 1, the cylinder body that it is characterized in that cylinder sleeve are that seamless steel pipe is processed into.
4, according to the described thin wall cylinder cover of claim 1, it is characterized in that the improved spongy chromium plating method processing of internal surface, this method is: electrolyte prescription: chromic anhydride (Cro
3) 230～250 grams per liters, sulfuric acid (H
2So
4) 1.8～2.4 grams per liters, chromic anhydride/sulfuric acid 100/0.85～0.9, trivalent chromium are controlled in 3～5 grams per liters; 5860 ° ± 1 ℃ of chromium plating temperature; 40～50 amperes/decimeter of current densities
2, 28～40 amperes/decimeter of porosity current densities (anodic souring)
24～6 minutes porosity time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85202400 CN85202400U (en) | 1985-06-18 | 1985-06-18 | Chromium plating cyclinder jacket with thin stell pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85202400 CN85202400U (en) | 1985-06-18 | 1985-06-18 | Chromium plating cyclinder jacket with thin stell pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN85202400U true CN85202400U (en) | 1986-05-07 |
Family
ID=4798216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85202400 Withdrawn CN85202400U (en) | 1985-06-18 | 1985-06-18 | Chromium plating cyclinder jacket with thin stell pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85202400U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1042753C (en) * | 1994-06-02 | 1999-03-31 | 北京科技大学 | Liquid for electroplating trivalent chromium |
| CN103056173A (en) * | 2011-10-21 | 2013-04-24 | 襄阳博亚精工装备股份有限公司 | Turning roll with spongy chromium plating technique to achieve roll face texturing and manufacturing method thereof |
| CN103161951A (en) * | 2011-12-15 | 2013-06-19 | 陕西天元材料保护科技有限公司 | Wear-resistant oil cylinder and machining method thereof |
| CN103924273A (en) * | 2014-03-18 | 2014-07-16 | 泰州双羊精密无缝钢管有限公司 | Corrosion resistance seamless steel pipe treatment process |
| CN103924273B (en) * | 2014-03-18 | 2016-11-30 | 泰州双羊精密无缝钢管有限公司 | A kind of process technique of corrosion resistance seamless steel pipe |
-
1985
- 1985-06-18 CN CN 85202400 patent/CN85202400U/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1042753C (en) * | 1994-06-02 | 1999-03-31 | 北京科技大学 | Liquid for electroplating trivalent chromium |
| CN103056173A (en) * | 2011-10-21 | 2013-04-24 | 襄阳博亚精工装备股份有限公司 | Turning roll with spongy chromium plating technique to achieve roll face texturing and manufacturing method thereof |
| CN103161951A (en) * | 2011-12-15 | 2013-06-19 | 陕西天元材料保护科技有限公司 | Wear-resistant oil cylinder and machining method thereof |
| CN103924273A (en) * | 2014-03-18 | 2014-07-16 | 泰州双羊精密无缝钢管有限公司 | Corrosion resistance seamless steel pipe treatment process |
| CN103924273B (en) * | 2014-03-18 | 2016-11-30 | 泰州双羊精密无缝钢管有限公司 | A kind of process technique of corrosion resistance seamless steel pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IP01 | Partial invalidation of patent right |
Invalid declaration decision word first: 33 |
|
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |