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CN106119814A 一种在黄铜上化学镀Ni‑P、Ni‑P‑PTFE复合涂层的表面自润滑技术 无效 - 驳回

一种在黄铜上化学镀Ni‑P、Ni‑P‑PTFE复合涂层的表面自润滑技术
摘要：
一种在黄铜上化学镀Ni‑P、Ni‑P‑PTFE复合涂层的表面自润滑技术，先将基体表面抛光处理，经超声波清洗后，对黄铜基体进行化学除油、酸洗活化的前处理工艺，控制Ni‑P层的沉积时间和N‑P‑PTFE镀液中PTFE的浓度，最终获得N‑P‑PTFE涂层作为自润滑层，得到的复合涂层的最小摩擦系数可达0.161。由于适度的Ni‑P层的沉积时间和N‑P‑PTFE镀液中PTFE浓度能够为Ni‑P‑PTFE复合涂层提供更好的沉积条件，使得Ni‑P‑PTFE复合涂层的性能进一步优化，同时由于Ni‑P‑PTFE复合涂层的优良的抗腐蚀性能，该涂层可作为耐摩擦磨损工件的保护涂层，本发明的方法工艺简单、沉积速度快、成本低、结合强度好。
摘要（英）：

The invention discloses a surface self-lubricating technology for chemically plating brass with an Ni-P and Ni-P-PTFE composite coating. The technology includes the steps that firstly, the surface of a base body is polished and subjected to ultrasonic cleaning; secondly, the brass base body is subjected to pretreatment processes of chemical oil removing, acid pickling and activation; thirdly, the deposition time of an Ni-P layer and the concentration of PTFE in an N-P-PTFE plating solution are controlled; and finally, an N-P-PTFE coating is obtained and serves as a self-lubricating layer, wherein the minimum friction coefficient of the obtained composite coating can reach 0.161. Due to the fact that better deposition conditions can be provided for the Ni-P-PTFE composite coating through the proper deposition time of the Ni-P layer and the proper concentration of PTFE in the N-P-PTFE plating solution, the performance of the Ni-P-PTFE composite coating can be further optimized, and meanwhile due to the good corrosion resisting performance of the Ni-P-PTFE composite coating, the coating can serve as a protective coating of a frictional wear resisting workpiece. According to the technology, the method processes are simple, the deposition speed is high, cost is low, and the bonding strength is good.

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