Defects and measures easily caused by plate rolling
2. there are marks on the surface of the workpiece
after rolling, the surface of the workpiece has obvious marks visually, but there is no feeling when touching the hand, and the actual roughness becomes lower, this is due to the slight radial runout of the roller during rolling. The method to overcome is to clean the needle roller bearing, inject lubricating oil and grind the roller profile. 3. the surface of the workpiece is ribbed
although the roughness is relatively low after rolling, there is a more obvious bulge feeling when visually inspecting and touching the surface of the workpiece by hand, this is due to excessive rolling force and feed. At this time, the rolling pressure can be appropriately reduced and the feed quantity can be reasonably selected.
4. surface peeling
when excessive rolling or rolling times are applied, the contact area between the roller and the workpiece is too small, and the installation angle of the roller is too large, the surface peeling phenomenon will be caused, when this situation is more serious, the production of waste products must be avoided.
IV. Lubrication and cooling
lubrication and cooling is an important part of inner hole rolling. When rolling, sufficient lubricating coolant should be input, which not only reduces the heat generated during rolling, prolongs the service life of the roller, refines the surface roughness of the workpiece, but also flushes the surface of the inner hole of the workpiece, ensure that the roller works normally. In this example, we have adopted vulcanized cutting oil with good anti-sticking, anti-corrosion and lubrication and cooling as lubricating coolant, with good results.
we have applied the double-wheel floating rolling technology to the deep hole finishing of shield cylinder and achieved very good results. After rolling, the surface roughness of the inner hole of the oil cylinder reaches 0. 01 ~ 0. 05. The value is greatly reduced compared with that before rolling, which fully meets the technical requirements and provides a new technological approach for deep hole machining.
almost all goods have signs, but the previous signs only serve as instructions and trademarks. With the rapid economic development of various countries in the world in the past 20 years and the emphasis on the appearance, art and decoration of commodities, signage, as an important part of appearance and decoration, has become more and more important. For this reason, commodity designers have paid considerable attention to the development of signs and put forward higher requirements. These requirements are mainly:
1. Signs should have good weather resistance and wear resistance and can withstand the test of various working environments.
Second, the appearance of the sign should be harmonious and beautiful, which can play a role in painting the dragon and clearing the sun.
Third, the manufacturer should be reliable and simple in production process, save materials and materials, and reduce production costs.
4. For the society, the production process should be pollution-free and less pollution-free.
are an important part of the society and they come in handy in any place where there are custom name tags in need of custom name tags.
Excellent quality yet affordable best at ShunDing Metal Nameplate. Don't miss out!
While custom name tags, custom name tags Journalism can help achieve high accuracy._x000D_