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In recent years, there are four kinds of automatic painting techniques commonly used in domestic and foreign countries. Welded steel pipes are playing an important role in machinery construction. Now this article will introduce the painti...
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Existing ProblemsCompared with the developed countries, the production of seamless steel pipes still have many problems. Now we don't have the conditions to be a great power of seamless steel pipes production.Its major performances are as...
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There are mainly two manufacturing technology of seamless welded steel pipes, cold-drawing and hot rolling. This article is going to introduce the detail process of these two technologies.1. Cold-drawing seamless steel pipes: round pipe b...
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As a popular machinery construction material, seamless steel pipe has gained great attention because of its unique advantages.The production of the seamless steel pipes is orderly continuous process based on united working condition. It is...
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Seamless steel pipes have incomparable features and a large range of applications which make them account for high market demand rate in our country.FeaturesSeamless welded steel pipe is a kind of around, square, rectangular steel with ho...
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The major making techniques of seamless steel pipes are as follows.1. Plug Rolling ProductionProduction equipments consist of punching machine, automatic pipe rolling mill, reeling mill, sizing mill and the reducing mill. Pierce the round...
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