毕业设计外文翻译--封头加工工艺(编辑修改稿)

毕业设计外文翻译--封头加工工艺(编辑修改稿)内容摘要：

e drum forming crucial. Therefore, require that the operator must according to the processing situation of choice for mold and timely adjust shim plate. (2) the operator receives the process card, see process card, according to the process card check objects, to confirm the real instruction, onepiece, material. Number, batch number etc.. According to the choice of mold process card. (3) for EHA, EHB head shapes have adopted the *D standard selection, for DHB, PSH, MD and other special products according to technology card selection of mold, but in principle according to P**[1] (4) pressing carefully before inspection wafer quality, no seam wafer end is smooth, there is no gap, surface has no cutting slag and defects. (5) a weld in addition to carefully check the end of the wafer wafer defects, at the same time should be checked for weld seam is higher than that of base metal, weld ends of are welding spatter, weld end grinding smooth, there is no crack notch. (6) two or two or more superimposed when pressed, each slice of the joint surface should be clean, according to the circumstances must entrust welding class, the wafer is welded together to suppress. (7) detection of wafer thickness ( the thickest, most thin, whether and process card, measurement of wafer size and process card. (8) suppression must be removed before the inside and outside surface of all debris, to prevent pitting appeared. (9) for general stainless steel materials ( more than 5mm plate ) using Teflon plate mold and the lower mold dressing on surface polished smooth ( necessary nowadays mold to Teflon plate. ) to ensure the surface quality of the workpiece, while in the process of the pressing need to avoid debris into molds and semifinished products. [6] (10) the pressing process, when the wafer is a R shape, must use the corresponding R model measurement, the pressing process should be considered to adjust the pressure deformation degree. (11) pressing is finished, the measurement of plate thickness, measuring arc length. Check surface quality, check end and weld end is smooth ( necessary to polish out the ceremony ). (12) to check the semifinished product with process card is on the move to the next process ( and sign the name ) by the next process to confirm acceptance before. process 8 operation The spinning process is pressed after the drum head molding process, mainly for large head R and straight edge formation. machine. (1) forming wheel is connected to the corresponding mold, forming in the head inside, mold top with half formed head R and straight edge is tangent to tangent. (2) supporting wheel is also connected and molded wheel mold, forming in the head outside, and a forming wheel tangent. (3) base for fixing head, and the bottom according to head size before and a fter moving, the head should be installed so that the center of the base and the head of the center in a straight line. (4) the center rod is used for fixing head, and the center and the center of the base is in a straight line. In addition to the motor, a circuit board, is connected to the shaft, and a control console. procedure (1) to undertake pressure drum process card, according to the card to determine the corresponding head spinning. (2) according to the head of the diameter, select the corresponding upper and lower mold. (3) the clamping head, ensure that the head of the center point and the center of the base point in a straight line. (4) to adjust the molding wheel and the head of tangent, then according to the forming wheel position adjustment roller. (5) in the spinning process to observe the forming roller and the supporting roller relative position, and continue to use the template on the line alignment. Until the R reaches the requirements. operation standard (1) spinning wheel material for steel bearings or ductile iron, mold on the quality of the products and can spin forming closely related, therefore the operator must be processed according to choose suitable mold, at the same time, because of the shape of the mold and the surface condition of the quality of the workpiece has a great influence, therefore, before processing and machining process must on the mold for full inspection. (2) according to the process card requirements, confirm wafer, pressure drum or 9 preload semifinished instruction number, specifications, quantity of material, pliance, and check the quality of surface and end with no defect, abnormal timely and on the procedures of contact, and in a timely manner(3) check the semifinished end is smooth, with or without notch, crack, surface has no cutting or welding slag, and shall inspect the weld seam is higher than that of base metal, weld ends whether spatter, weld end grinding smooth, there is no crack. [7] (4) pressure drum or to the press after the finished product, must check for folding, cracking, crack is not conducive to the spinning processing defects. (5) for stainless steel workpiece, through to the pickling method of decontamination. (6) according to the process card selection of mold, general small arc r size requirements as a basis for selecting the internal wheel. (7) according to the different material, thickness of plate and sheet rebound, selection is slightly smaller than the internal wheel circular arc R. (8) for the special requirements of the product, according to its shape design inside the wheel, confirm the mold surface, good polishing processing. (9) spinning processing, in order to prevent scratching and improve the processing performance, suitable lubricant ( grease ) to prevent process heating head appears on the surface of hot cracks and scratches, can also prolong the service life of die. (10) the spinning process, should be considered a workpiece shaping and timely for pressure adjust。