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ASTM A36 hot rolled steel sheet
Bbn Steel
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发表于
18年9月5日
类别
Sheets
关键词
A36 steel
A36 sheet
A36 mild steel
A36 carbon steel
A36 material
A36 grade
A36 steel price
A36 steel sheets stock
价格/单位
US $600.00 / 公吨
最少订货量
1.00 公吨
付款方式
L/C, D/A, T/T, Cash, D/P(CAD), Other
产品产地
China
包装条件
seaworthy
交货时间
5 天
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产品详细信息
ASTM A36 hot rolled steel sheets are easily to occur iron oxide residual problems in production, which leads to surface pock and the qualified rate of production decline. That further affects enterprise benefits. In view of the actual production situation, the following measures should be taken:
1. Optimize the heating process. The heating should be based on entrance temperature of the finishing rolling machine. The heating temperature should be uniform, and the temperature difference on 2 en
ds should be controlled within 20 degrees. If the rolling machine break down, you should reasonably arrange temperature holding time of ASTM A36 steel billets to be rolled, in case too long temperature holding time facilitates increase of iron oxide skin.
2. Optimize finishing rolling enter speed. In order to ensure the effect of the roll descaling and ensure the quality of the rolled piece, the inlet speed of the rolling mill of different sizes should be optimized.
3. Optimize the descaling process. The number of descaling working pumps is increased to ensure the descaling pressure; double beams can be used in the descaling after the furnace and before the finishing rolling. Control rolling rhythm, avoid more than two points (including two points) descaling and the phenomenon of rolling.
4. The improvement of nozzles. If the thickness of the intermediate ASTM A36 steel billet changes greatly, the distance between the upper nozzle and the slab should not be too far away. The nozzle height should be lowered to ensure that the blow force of the nozzles is not decreased, and the nozzle angle is adjusted at the same time.
5. Add water retaining chain. In order to ensure the seal of the descaling water, two water retaining chains and a backjet are added, and 9 reverse nozzle are set up, and a water collector with a slope inside the descaling box is set up.
6. Improve the finishing roll surface.
With above measures, the pock defects of ASTM A36 hot rolled steel sheets is reduced from 10% to 0.2%, rolled commuted rate decreased from 12% to 5.24%, the effect is significant.
http://www.steel-plate-sheet.com/Sellinglist/Treatment-of-iron-oxide-residual-problems-of-ASTM-A36-hot-rolled-steel-sheet.html
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公司详细资料
公司名称
Bbn Steel
会员自
2018年9月5日
国家
China
列表
销售产品 (2)
客戶需求 (0)
描述
BBN steel is world class steel materials suppliers, mainly supply carbon steel, low alloy steel, vessel steel, corten st...
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ASTM A36 hot rolled steel sheet
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Bbn Steel
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