发明名称 |
HERSTELLUNGSVERFAHREN EINES GEGENSTANDES AUS STAHLBLECH, DER DIREKT-EMAILLIERT WIRD |
摘要 |
Sheet steel is pickled in acid and then given a coating which protects it against corrosion, serves as a lubricating agent during subsequent shaping and is removed by degreasing before nickel-plating and enamelling of the final article. When applied to specific steel sheet 1 mm thick, the coating will withstand 10 cycles of heat and humidity according to DIN50017 without the steel showing any sign of rust. Its lubricating ability is such that a pressed flat bottomed dish 90 mm in diameter, pickled and then coated may be further pressed to a depth of 25 mm by a punch of diameter 50 mm moving at 1.6 mms/sec without rupture up to a force of 65 kN. The coating can be completely removed by immersion in a bath containing 35 g/l sodium metasilicate, 16 g/l trisodic phosphate and 2 g/l nitriloacetic acid at 60 degrees C for 3 mins, followed by immersion in water for 1 min and spraying therewith for 0.5 min. |
申请公布号 |
AT216000(T) |
申请公布日期 |
2002.04.15 |
申请号 |
AT19980400466T |
申请日期 |
1998.02.27 |
申请人 |
SOLLAC |
发明人 |
CHOLET, VINCENT;VONNER, DANIEL |
分类号 |
C23D3/00;(IPC1-7):C23D3/00 |
主分类号 |
C23D3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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