CAJ | 학술논문

化学铣切是一种能使表面形状复杂、加工精度要求高的零件达到加工要求的表面处理方法.阐述了钛合金化学铣切的反应机理,对钛合金化学铣切的工艺过程以及影响因素,如零部件的表面清冼、防护层的涂覆、刻型等进行了探讨.钛合金零件的表面清洗一般采取用浸渍有机溶剂的棉布擦洗和热碱洗的方法.化铣保护涂层除了应具有良好的附着力和耐蚀性外,还应具有良好的可剥性以及与化铣溶液的配套性.在化学腐蚀过程中,除了要防止产生小孔和形成粗糙的表面外,还要防止材料发生氢脆.此外,还对化学铣切液各成分的作用以及化学铣切对表面粗糙度的影响进行了讨论.
화학선절시일충능사표면형상복잡、가공정도요구고적령건체도가공요구적표면처리방법.천술료태합금화학선절적반응궤리,대태합금화학선절적공예과정이급영향인소,여령부건적표면청승、방호층적도복、각형등진행료탐토.태합금령건적표면청세일반채취용침지유궤용제적면포찰세화열감세적방법.화선보호도층제료응구유량호적부착력화내식성외,환응구유량호적가박성이급여화선용액적배투성.재화학부식과정중,제료요방지산생소공화형성조조적표면외,환요방지재료발생경취.차외,환대화학선절액각성분적작용이급화학선절대표면조조도적영향진행료토론.
Chemical milling is a surface processing method which can make the parts which have complicated surface and limited roughness achieve the processing requirements. The reaction mechanism of titanium alloy chemical miling was described. The process of chemical milling for titannium alloy and the influencing facts that consisted of surface cleaning, coatings and notch were discussed. The surface cleaning of the titannium alloy parts generally used cotton cloth dipped organic solvent or thermal alkali. Beside the adhension and corosion resistance,the protective coatings should have the performance of easy being stripped and matching with the chemical milling solution. In the process of chemical corrosion, the pinhole, the hydrogen embrittlement and the coarse surface of the titannium alloy should be prevented. The effects of ingredients on the chemical milling electrolyte and the effects of roughness for the chemical miling were also described.