<address id="99t9v"><nobr id="99t9v"><nobr id="99t9v"></nobr></nobr></address><form id="99t9v"><form id="99t9v"><th id="99t9v"></th></form></form>

                  <form id="99t9v"></form>

                            Working pressure and standard requirements of piston rod

                            The piston rod is mainly manufactured by the advanced technology of precision cold drawing, precision grinding and high precision polishing, and its various technical indicators meet the standards. Piston rods can be directly used in oil cylinders, air cylinders, shock absorbers, textile printing and dyeing, printing machinery guide rods, die-casting machines, injection molding machine guide rods and four-column press guide posts, fax machines, printers and other modern office machinery guide shafts, etc. Industry products where precision elongated shafts are components.
                            Piston rod design Matters
                            1. Equipment use workpiece conditions.
                            2. Structural characteristics, load conditions, required speed, stroke size and action requirements of the working mechanism.
                            3. Selected hydraulic system working pressure.
                            4. Current status of materials, fittings and workmanship.
                            5. Relevant national standards and technical specifications, etc.
                            6. Try to make the piston rod bear large load in multi-pull state, and have good longitudinal stability in multi-pressure state.
                            Rolling of piston rod
                            The piston rod is formed by rolling, and its rolling surface will form a cold-work hardened layer, which can effectively reduce the elastic and plastic deformation of the contact surface of the grinding pair, and delay the generation or expansion of fatigue cracks, thereby improving Surface corrosion resistance.
                            Chrome plating of piston rod
                            After the piston rod is chrome-plated, it can have a hard, smooth and corrosion-resistant surface. To improve the corrosion resistance of the piston rod surface, it needs to be chrome-plated. After chrome plating, the hardness of the coating of the piston rod can be as high as HV1100, and the coating is smooth, uniform in thickness, and strong in dispersion, which can improve some aspects.
                            Tempering of the piston rod
                            The quenching and tempering of the piston rod is the quenching and tempering treatment of the piston rod. After the quenching and tempering treatment, the working strength of the material can be effectively improved, which is helpful for the sealing of tiny cracks on the surface and hinders the expansion of the erosion effect, thereby improving the surface corrosion resistance. . However, not all piston rods need to be quenched and tempered, so the quenching and tempering treatment should be judged according to the actual situation and materials.

                            2021/04/29 16:27:21 643

                            一二三四高清视频免费播放| 在线观看免费av网站| 优优人体艺术| 第一次挺进小婷身体里| 桃子视频在线播放www| 男同性恋网| 再深一点灬舒服灬太大了视频| 婷婷97狠狠| 午夜福利网国产A| 各种盗撮合集VOYEUR| 爱做久久久久久| 三上悠亚在线观看| 欧美疯狂性受XXXXX喷水更猛| 两男吮着她的花蒂尿| 欧美大黑吊| 三级片免费观看| 精品久久久| 奶头被民工吸的又大又黑| 免费性爱电影| 欧美 偷窥 清纯 综合图区A| ACG全彩绅士口工侵犯漫画| 亚洲一本色道中文无码AV| 处女调教部| 三级片观看| 动漫美女被强行挤奶吸乳视频| 东南亚雏妓WWW在线播放| 无码丰满熟妇色视频在线| 疯狂做受XXXX高潮黑人| 天天日b| 黄片地址| 无码人妻精品中文字幕无码人妻| 淫老汉| 欧美性猛交AAAAA免费看| 国产重口小伙子嫖老女人| 扒开老师内衣吸她奶头动态图| 娇门吟h| 律师的小秘书1V1H| 欧美性| 亚洲18p| 免费3级片| h视频网站| 人体艺术吧| 免费色| 美女光屁屁| 人体艺术人体| 一二三四高清视频免费看| 极品美女扒开粉嫩小泬图片|