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1. 发明专利

JPS5785685A ELECTROSLAG WELDING METHOD 失效
公开(公告)号：JPS5785685A
公开(公告)日：1982-05-28
申请号：JP16070780
申请日：1980-11-17
申请人： HITACHI LTD
发明人： HOSHINO BUNICHI , ISHIKAWA MASAYUKI
IPC分类号： B23K25/00
摘要： PURPOSE:To melt welding materials by the resistance heat of slag and perform electroslag welding without using filler metal by inserting an electrode horizontally into the slag center in a groove, and flowing electric current through molten slag between the same and the welding materials. CONSTITUTION:An electrode 1 is inserted to the central part of the groove of a start tab 6; a flux is filled in the groove, and an arc is generated between the electrode 1 and the tab 6 to melt the flux, whereby molten slag 2 is formed. At this time, the outflow of the slag 2 from the end parts of the groove is prevented by a back copper shoe 8 and a front copper shoe 9, and the flux is supplied until the molten slag 2 contacts with the bottom end of groove faces 4. Thereafter, the electrode 1 is moved upward and the upper groove faces 4 of the slag 2 are melted successively, whereby the welding is shifted upward while molten metal 5 is formed in the lower part of the slag 2.

2. 发明专利

JPS58199607A Roll stand of rolling mill and its manufacture 失效
标题翻译：轧辊铣刀及其制造
公开(公告)号：JPS58199607A
公开(公告)日：1983-11-21
申请号：JP8312182
申请日：1982-05-19
申请人： Hitachi Ltd
发明人： KITAMURA NORIO , KITA HISANAO , HOSHINO BUNICHI , ISHIKAWA MASAYUKI
IPC分类号： B21B31/02 , B23K25/00 , B23K31/00
CPC分类号： B21B31/02
摘要： PURPOSE:To manufacture a roll stand having an excellent safety in strength, by welding several rolled steel plates for constructing respective upper and lower blocks and left and right posts separately, in manufacturing a roll stand of a rolling mill. CONSTITUTION:A roll stand 1 of a rolling mill is constituted of upper and lower blocks 2, 3 and left and right posts 4, 5, and each of the blocks is constructed with one piece of rolled steel plate and each of the posts with two pieces among rolled steel plates 4a, 4b, 5a, and 5b, respectively. After tack welding respective rolled steel plates through a starting tab used for electroslag welding, the welded body is layed so that the left post is at the top and is mounted on a base 13 by supporting legs 12. Next, a central butting part A of the post 5, butting parts B, C at its both sides and a central butting part D of the post 4, butting parts E, F at its both sides are respectively welded in sequence, by a nozzle of an electroslag welder travelling on a rail 14, to manufacture a roll stand excellent in strength.
摘要翻译：目的：制造具有良好的强度安全性的辊架，通过在制造轧机的轧机机架中分别焊接用于分别构成各自的上下块和左右立柱的多个轧制钢板。构成：轧机的轧机机架1由上下块体2,3和左右立柱4,5组成，每个块体由一块轧制钢板构成，每个柱具有两个分别在轧钢板4a，4b，5a，5b之间。通过用于电渣焊接的起始片固定各个轧制钢板之后，焊接体被放置成使得左柱位于顶部，并通过支撑腿12安装在基座13上。接下来，将中心对接部分A 柱5的两侧的对接部B，C和柱4的中心对接部D，其两侧的对接部E，F分别依次通过在轨道上行驶的电渣焊机的喷嘴焊接 14，制造强度优异的辊架。

3. 发明专利

JPS6358054B2 失效
公开(公告)号：JPS6358054B2
公开(公告)日：1988-11-14
申请号：JP8312182
申请日：1982-05-19
申请人： HITACHI LTD
发明人： KITAMURA NORIO , KITA HISANAO , HOSHINO BUNICHI , ISHIKAWA MASAYUKI
IPC分类号： B21B31/02 , B23K25/00 , B23K31/00

4. 发明专利

JPS60152383A METHOD AND DEVICE FOR CONTROLLING DEPTH OF MOLTEN SLAG AND SLIDING PARTITION PLATE FOR ELECTROSLAG WELDING 失效
公开(公告)号：JPS60152383A
公开(公告)日：1985-08-10
申请号：JP630384
申请日：1984-01-19
申请人： HITACHI LTD
发明人： TAKASE TOSHIAKI , HOSHINO BUNICHI , OGURI TADAKAZU
IPC分类号： B23K25/00
摘要： PURPOSE:To control automatically molten slag to an optimum depth and to enable full automation of electroslag welding by comparing the depth of the molten slag detected by utilizing ultrasonic vibrators and optimum depth and controlling the amt. of the flux to be charged. CONSTITUTION:The surface and depth of molten slag 3 are detected by utilizing plural pieces of ultrasonic vibrators 11 arranged on the side of a sliding partition plate 8 for the slag 3 on the side opposite from the slag 3. The detected depth and the preset optimum depth are compared. The amt. of the flux to be charged is caluclated from the deviation thereof and a control device 6 for charging the flux is controlled according to the calculated amt. The control quan tity of the plate 8 is calculated frm the surface of the slag 3 detected in the above-mentioned way. A device 10 for driving the plate 8 is controlled according to the calculated value, by which the slag is automatically controlled to the optimum depth.

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