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What should be noticed in roll surfacing welding
[2020-07-03]The roll is the core part of the mill. The use of the roll involves the selection of the type of the mill, the preparation of the roll, the maintenance and periodic repair in the rolling process, these are all factors that affect the mill productivity, product quality and production economy. As the rolling process is a continuous process, the operator needs to constantly monitor the roll status to
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Chinese roll varieties still need to be optimized
[2020-07-03]After years of development, domestic roll manufacturing enterprises can produce all kinds of rolls with different materials, specifications and varieties to meet the needs of all kinds of mills in China. For example, SINOSTEEL has developed more than 50 kinds of roll products instead of imported ones. Its large-scale composite cast steel backup rolls, semi-high-speed steel rolls and cen
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Can Rolls used in industry be damaged
[2020-07-03]Mention Roll we should be heard of, but in recent years in the factory roll often happen a little damage, so in the industry roll is really so weak? In fact, in the roll of all parts of the complex one component is the mill. There will be a preparation procedure before the roll is used. In the preparation procedure, the roll will produce some unnecessary stress, including thermal stress an
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Stainless steel pipe can form rollers
[2020-07-03]In the production of stainless steel tubes (titanium tubes) from stainless steel strips, a process called cold welding is sometimes employed. But cold welding can damage the surface of stainless steel tube (titanium tube) . In addition, the relative tangent velocity between the Tube and the roll is the main reason for the friction between the tube and the roll. Due to the influence of cold welding
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The chemical composition of the roller has been improved
[2020-07-03]Prior to October 18,2009, the control of chemical composition in front of the furnace in the foundry workshop was completed once by hand, and the process control was based on experience. Since the introduction of spectrometer on October 18,2009, chemical composition adjustment in front of the furnace is divided into two tests: initial sample and duplicate sample, which increases the controllabilit
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Effective method of improving roll
[2020-07-03]High-speed steel roll has the advantages of long service life, smooth material surface and even thickness. At present, Centrifugal casting is widely used in industry to produce high-speed Steel Roll Rings, which is simple in process and low in cost. However, due to the high content of CR, V, W, Mo and other alloy elements in high-speed steel materials for rolls, therefore, under the action of Cent
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What conditions must be met for the circulation of rollers
[2020-07-03]Roll is an important consumable in steel rolling process and one of the main products of large-scale casting and forging enterprises. Roll recycling is no doubt the roll from consumables into recyclable durable goods, only the work layer of the roll as a consumable. However, if you want to achieve the cycle of roll use must meet the following basic conditions: 1, a repair of the roll ser
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Rolls are classified according to the method of the process
[2020-07-03]What a roll is: a roll is a tool that uses the pressure created by the rolling of a pair or group of rolls to roll steel, causing the metal to deform plastically. The rollers are mainly subjected to static and dynamic loads, wear and temperature changes during rolling. The common heat treatment types of roll include Stress Relief Annealing, isothermal spheroidizing annealing, diffusion annealing,
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