CN103573820A - Engine bearing bush with macromolecule plated layer - Google Patents
Engine bearing bush with macromolecule plated layer Download PDFInfo
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- CN103573820A CN103573820A CN201310482585.0A CN201310482585A CN103573820A CN 103573820 A CN103573820 A CN 103573820A CN 201310482585 A CN201310482585 A CN 201310482585A CN 103573820 A CN103573820 A CN 103573820A
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- Prior art keywords
- plated layer
- engine bearing
- layer
- bearing bush
- macromolecule
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Abstract
The invention discloses an engine bearing bush with a macromolecule plated layer. The engine bearing bush comprises an anti-attrition layer, wherein the anti-attrition layer is prepared from the following components in percentage by weight: 0.1-3% of knuckle, 2-5% of silver, 0.3-0.6% of zinc, 5-10% of copper, 3-5% of polytetrafluoroethylene, 10-15% of indium, 0.5-1.5% of magnesium and the balance of tin. Polytetrafluoroethylene is deposited onto SnCu through an electroplating nano technique, so that the hardness of the plated layer is enhanced, the bearing area of the plated layer is increased, and the comprehensive property of the plated layer is further improved as indium serving as a soft phase is added. As tin has good corrosion resistance and abrasion resistance, the engine bearing bush is free of lead, the environment-friendly requirement is met.
Description
Technical field
The present invention relates to a kind of automobile engine bearing, relate in particular to a kind of engine bearing with macromolecule coating.
Background technique
Traditional copper alloy bearing-bush obtains applying very widely at present on high-mechanic internal-combustion engine, it is comprised of base layer, nickel-barrier layer and the anti-attrition layer of a steel back layer, a Cuprum alloy in structural type, wherein base becomes on steel back layer, nickel-barrier layer is plated on base layer, and anti-attrition layer is plated on nickel-barrier layer.Anti-attrition layer generally adopts Amounts of Lead, Tin Copper ternary alloy, wherein lead content is up to 80～90%, this bearing shell can meet the basic demand of motor to a certain extent, but be applied on the internal-combustion engine of strengthening, because the fatigue resistance degree of anti-attrition layer is low, can not meet car combustion engine development need, the fatigue resistance of bearing shell, corrosion resistance and wear resistance all have much room for improvement.Owing to containing plumbous grade for harmful metal elements in bearing shell, bearing shell can not be ignored the impact of environmental disruption simultaneously, necessary production environment protection type bearing shell, thus meet social development need.
Summary of the invention
The deficiency existing for prior art, technical problem to be solved by this invention is, a kind of with low cost, reasonable mixture ratio is provided, has that bearing capacity is high, wear-resisting, corrosion-resistant and environmental protection is not leaded, the engine bearing with macromolecule coating of excellent combination property.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of engine bearing with macromolecule coating, comprise anti-attrition layer, described anti-attrition layer is comprised of the composition of following weight percentage: nickel: 0.1～3%, and silver: 2～5%, zinc: 0.3～0.6%, copper: 5～10%, teflon: 3～5%, indium: 10～15%, magnesium: 0.5～1.5%, surplus is tin.
The above-mentioned engine bearing with macromolecule coating, comprises anti-attrition layer, and described anti-attrition layer is comprised of the composition of following weight percentage: nickel: 1.5%, and silver: 4%, zinc: 0.4%, copper: 7%, teflon: 4%, indium: 12%, magnesium: 1.2%, surplus is tin.
The advantage that the present invention has the engine bearing of macromolecule coating is: teflon is passed through to electroplating nano deposition techniques to SnCu, strengthened the hardness of coating, expanded the loaded area of coating, added indium as soft phase, the combination property of coating is further improved.Tin has good decay resistance and wear resistance, and the present invention is not leaded, meets environmental requirement.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further details;
Embodiment 1:
A kind of engine bearing with macromolecule coating, comprise anti-attrition layer, described anti-attrition layer is comprised of the composition of following weight percentage: nickel: 0.1～3%, silver: 2～5%, zinc: 0.3～0.6%, copper: 5～10%, teflon: 3～5%, indium: 10～15%, magnesium: 0.5～1.5%, surplus is tin.
The engine bearing with macromolecule coating in the present embodiment, preferred version is: comprise anti-attrition layer, described anti-attrition layer is comprised of the composition of following weight percentage: nickel: 1.5%, silver: 4%, zinc: 0.4%, copper: 7%, teflon: 4%, indium: 12%, magnesium: 1.2%, surplus is tin.
Certainly, above-mentioned explanation is not limitation of the present invention, and the present invention is also not limited to above-mentioned giving an example; those skilled in the art; in essential scope of the present invention, the variation of making, remodeling, interpolation or replacement, all should belong to protection scope of the present invention.
Claims (2)
1. an engine bearing with macromolecule coating, comprise anti-attrition layer, it is characterized in that, described anti-attrition layer is comprised of the composition of following weight percentage: nickel: 0.1～3%, and silver: 2～5%, zinc: 0.3～0.6%, copper: 5～10%, teflon: 3～5%, indium: 10～15%, magnesium: 0.5～1.5%, surplus is tin.
2. the engine bearing with macromolecule coating according to claim 1, comprise anti-attrition layer, it is characterized in that, described anti-attrition layer is comprised of the composition of following weight percentage: nickel: 1.5%, and silver: 4%, zinc: 0.4%, copper: 7%, teflon: 4%, indium: 12%, magnesium: 1.2%, surplus is tin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310482585.0A CN103573820A (en) | 2013-10-16 | 2013-10-16 | Engine bearing bush with macromolecule plated layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310482585.0A CN103573820A (en) | 2013-10-16 | 2013-10-16 | Engine bearing bush with macromolecule plated layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103573820A true CN103573820A (en) | 2014-02-12 |
Family
ID=50046326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310482585.0A Pending CN103573820A (en) | 2013-10-16 | 2013-10-16 | Engine bearing bush with macromolecule plated layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103573820A (en) |
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2013
- 2013-10-16 CN CN201310482585.0A patent/CN103573820A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140212 |