Defects and measures easily caused by plate rolling

Defects and measures that are easy to produce when the sign is rolled, sign making, sign making, metal sign, sign, sign manufacturer, nameplate making/> The Law of the surface of the workpiece is better than the pitting. If the surface roughness of the workpiece is thicker after rolling, the surface shows a more obvious trace like a punch, the reason is that the profile of the hard alloy roller has scars. At this time, the roller can be replaced or the profile of the original roller can be ground (Surface roughness value is lower than mine). 2. There are marks on the surface of the workpiece. After rolling, there are obvious marks on the surface of the workpiece, but there is no feeling on 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. Sign making acrylic sign reflective sign glorious brand military brand wine sign making enamel sign luminous sign high light sign Medal Bronze injection molding sign corrosion sign Road sign House sign crystal epoxy sign badge making government agency military large hanging emblem small hanging emblem School badge Medal/commemorative coin badge production, the defects and measures that are easy to produce when the badge and the sign are rolled. If the surface roughness of the workpiece is thicker after rolling, the surface shows a more obvious trace like a punch, the reason is that the profile of the hard alloy roller has scars. At this time, the roller can be replaced or the profile of the original roller can be ground (Surface roughness value is lower than mine).
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.
V. Summary
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.

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