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  • 什么因素影响压花辊的质量
  • 本站编辑:杭州创兴花纹辊发布日期:2019-12-11 19:46 浏览次数:
 
经过压花辊制作之后,最终是要将压花辊投入到各种压花作业当中去。在压花辊使用的众多情况中,有一种是为防水卷材的压花作业,但防水卷材具有它自身的特殊性。从而在使用压花辊压花的时候,容易造成压花效果不佳的情况,比如会造成PE膜与涂盖料之间存有较多的气泡,甚至砂面或撒砂面的产品有较多的浮砂情况出现,从而造成防水卷材的表面外观令人失望,这也就意味着压花辊制作在实际使用后的结果是失败的。
1、下料:辊体用无缝钢管,轴用45圆钢,端板用Q235钢板, 按图纸尺寸留出8mm加工余量切料。
2、车削加工:车削加工辊体、端板和轴等件的配合部位结合面,按H9/f9配合精度加工。
3、焊接组合辊体内加强筋、两端轴等零件,注意校正两端轴与内套管的同轴度,只焊轴上的内端板。
4、把组合焊接完整的内套装入辊体内,组合焊接内端板与辊体的配合交界处。
5、把外端板装在两端轴上,焊接外端板与轴和辊体的结合面交界处。
6、对焊接组合的辊毛坯进行退火处理,消除内应力。
7、钢辊轴的一端车平端面,钻标准中心孔。
8、车削加工:分粗、精车钢辊体的各部位至图纸要求尺寸。辊体的工作表面粗糙度应不大于1.6μm;辊的工作面对两端轴支撑面(滚动轴承安装部位)径向跳动允差为0.025mm;辊体工作面的圆度为0.036mm;轴承配合圆按k6精度加工。然后架中心架,车端面,钻孔至尺寸。
9、按花纹钢辊的图案要求加工花纹。然后镀硬铬层,厚度为0. 03~0. 05mm。
10、校正钢辊的静平衡。
11、喷砂是采用压缩空气为动力,以形成高速喷射束将喷料(喷丸玻璃珠、钢丸、钢砂、石英砂、金刚砂、铁砂、海砂)高速喷射到被需处理工件表面,使工件表面的外表面的机械性能发生变化,由于磨料对工件表面的冲击和切削作用,使工件的表面获的一定的清洁度和不同的粗糙度,使工件表面的机械性能得到改善,因此提高了工件的抗疲劳性,增加了它和涂层之间的附着力,延长了涂膜的耐久性,也有利于涂料的流平和装饰,把表面的杂质、杂色及氧化层清除掉,同时使介质表面粗化,使基材表面残余应力和提高基材表面硬度的作用。

After embossing roll production, the final is to be embossing roll into a variety of embossing operations. In many cases of embossing roller, there is a kind of embossing operation for waterproof roll, but the waterproof roll has its own particularity. Thus, when using embossing roller embossing, it is easy to cause poor embossing effect, for example, there will be more air bubbles between PE film and coating, and even more floating sand will appear in the products of sand surface or sanding surface This results in a disappointing surface appearance of the waterproof roll, which means that the embossing roller production is a failure after the actual use. 1. CUTTING: SEAMLESS STEEL TUBE for Roller Body, 45 round steel for shaft, Q235 steel plate for end plate, 8 mm machining allowance for cutting according to drawing size. 2. TURNING: Turning the joint surfaces of the roll bodies, end plates and shafts to H9 / F9 matching accuracy. 3, welding the inner stiffener, two-end shaft and other parts, pay attention to correct the coaxiality of the two-end shaft and the inner sleeve, only welding the inner end plate on the shaft. 4, the combination welding complete inner sleeve into the roll body, the combination welding inner end plate and the roll body Mating junction. 5. Install the outer end plate on the two end shafts and weld the junction of the outer end plate with the shaft and the Roller Body. 6, the welding combination of the roll blank annealing treatment, the elimination of internal stress. 7, one end of the steel roller flat end of the car, Drilling Standard Center hole. 8, turning: The rough, fine steel roll body parts to the drawing requirements of size. The working Surface roughness of the roll body shall not be more than 1.6 m; the radial runout tolerance of the roller face to the mounting position of the roller bearing on the supporting surfaces of the two ends of the shaft shall be 0.025 mm; the roundness of the working face of the roll body shall be 0.036 mm; the bearing fit shall be machined to K6 precision. Then frame center frame, car end face, drill hole to size. 9, according to the pattern of the pattern of steel roller processing pattern requirements. Then hard chromium layer, thickness of 0. 03 ~ 0. 05 mm. 10. Correct static balance of steel rollers. 11. Sand blasting is powered by Compressed air to form a high speed jet beam to blast the material shot glass beads, steel shot, steel sand, quartz sand, carborundum, iron sand and sea sand to the surface of the work piece to be processed at high speed Because of the impact and cutting action of Abrasive on the surface of the workpiece, the surface of the workpiece can be cleaned and the surface roughness can be different, and the mechanical properties of the workpiece surface can be improved Therefore, the fatigue resistance of the workpiece is improved, the adhesion between the workpiece and the coating is increased, the durability of the coating film is prolonged, the leveling and decoration of the coating are also beneficial, and the impurities, impurities and oxide layers on the surface are removed At the same time, the surface of the medium is coarsened, the surface residual stress of the substrate and the surface hardness of the substrate are increased.

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