Technical requirements of high vertical bright annealing furnace , equipment manufacturers equipment maintenance and stainless steel 304 sheet supply requirements are very strict, which part of the equipment maintenance and spare parts supply and delivery service only , does not provide the drawings , expensive.
Improve the quality of stainless steel and die life , should use different names and stainless steel metal forming material friction material , and taking into account the size of drawing parts and production quantities .
1 large size stainless steel deep drawing stainless steel parts , not very large production volume, in order to stainless steel sheet 304 , should use cast iron HT300, QT600-2 , etc., as convex and concave mold materials, may also be of special cast iron .
2 , small and medium size stainless steel deep drawing parts , copper based alloys generally used as mold material, such as aluminum bronze, aluminum and iron bronze, phosphor bronze .
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2014年5月4日星期日
2014年4月3日星期四
High-chromium stainless steel sheet 304 first
Good heat resistance, corrosion resistance is weak , 11% Cr, 8% of Ni.
409 - the cheapest model ( BAR ) , commonly used as automobile exhaust pipe, is a ferritic qiyi stainless steel 304 sheet ( chrome steel ) .
( High-strength chrome steel ) , good wear resistance , corrosion resistance is poor .
Similar to Brandt 's first high-chromium stainless steel this . Also used in surgical tools , can do very bright .
Good formability , but heat resistance and corrosion resistance worse .
Carbon is slightly higher , after appropriate heat treatment to obtain a higher yield strength and hardness up to 58HRC, are among the most hard stainless steel sheet 304 . The most common application example is the " razor blades ." ( Easy processing ) .
409 - the cheapest model ( BAR ) , commonly used as automobile exhaust pipe, is a ferritic qiyi stainless steel 304 sheet ( chrome steel ) .
( High-strength chrome steel ) , good wear resistance , corrosion resistance is poor .
Similar to Brandt 's first high-chromium stainless steel this . Also used in surgical tools , can do very bright .
Good formability , but heat resistance and corrosion resistance worse .
Carbon is slightly higher , after appropriate heat treatment to obtain a higher yield strength and hardness up to 58HRC, are among the most hard stainless steel sheet 304 . The most common application example is the " razor blades ." ( Easy processing ) .
2014年3月26日星期三
Low yield stainless steel sheets
12 to 30% chromium , 6 to 12% of nickel and small amounts of other elements. The carbon content of the steel is very low, at room temperature was added austenitic or ferritic organization . It has better corrosion resistance than chromium qiyi 430 stainless steel sheet , weldability and formability . The earliest chrome-nickel stainless steel made in 1912 by the German E. B. Strauss and Mao Demirel . The most commonly used modern 18% chromium , 8% nickel, 18-8 stainless steel. This low yield strength steel , not heat strengthened . But working to strengthen the tendency of large , high-intensity obtained by cold wire and strip . Commonly used steel as 0Cr18Ni9, 0Cr17Ni13Mo2 , etc. , used for the production of chemical containers, equipment lining , pipelines , medical devices and instrumentation. Adding copper and molybdenum qiyi stainless steel 304 sheet , such as 0Cr18Ni18Mo2Cu2Ti better corrosion resistance in sulfuric acid, phosphoric acid, non-oxidizing medium.
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