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CN103667794A 一种在钢铁表面制备高强耐蚀复合涂层的方法 无效 - 撤回

  • 专利标题： 一种在钢铁表面制备高强耐蚀复合涂层的方法
  • 专利标题（英）： Method of preparing high-strength anti-corrosion composite coating on steel surface
  • 申请号： CN201210337787.1
    申请日： 2012-09-07
  • 公开(公告)号： CN103667794A
    公开(公告)日： 2014-03-26
  • 发明人: 杨子润 , 王树奇 , 李新星 , 刘学然 , 王敏
  • 申请人： 盐城工学院
  • 申请人地址： 江苏省盐城市迎宾大道9号
  • 专利权人： 盐城工学院
  • 当前专利权人： 盐城工学院
  • 当前专利权人地址： 江苏省盐城市迎宾大道9号
  • 主分类号： C22C19/03
  • IPC分类号： C22C19/03 ;  B22F7/02
一种在钢铁表面制备高强耐蚀复合涂层的方法
摘要：
本发明提出了一种钢铁表面制备高强耐蚀复合涂层的方法，所述方法包括以下步骤：将重量百分比为11.6％Fe粉、8.2％Al粉、5.2％C粉、53.8％Ni粉和21.2％Ti粉均匀混合；将混合均匀后的涂层混料制成2～3mm厚的压坯，将钢(铁)粉制成12～15mm厚的基体压坯；在保护气氛状态下将涂层混料压坯和钢(铁)基体压坯两端面经600目砂纸打磨清理，然后按照钢(铁)基体压坯在下，涂层压坯在上顺序放入石墨模具中；在真空状态下对压坯进行热压烧结反应并保温扩散，其中最高烧结温度1000-1150℃，保温时间120-180min，最高施加压力30-45MPa，压力施加速率与升温速率同步。通过该方法制备的TiC增强的Ni3Al基复合涂层与粉末冶金钢(铁)基体实现了界面原位冶金结合，其组织致密，性能优越，具有广泛的应用领域。
摘要（英）：

The invention discloses a method of preparing a high-strength anti-corrosion composite coating on a steel surface. The method comprises the following steps: uniformly mixing 11.6wt% of Fe powder, 8.2wt% of Al powder, 5.2wt% of C powder, 53.8wt% of Ni powder and 21.2wt% of Ti powder; preparing a uniformly mixed coating mixture into a green compact which is 2mm-3mm thick, and preparing the steel (iron) powder into a base body green compact which is 12mm-15mm thick; polishing and clearing two end surfaces of the coating mixture green compact and the steel (iron) base body green compact by 600-mesh abrasive paper under a protective atmosphere state, placing the steel (iron) base body green compact and the coating green compact into a graphite mould from bottom to top in sequence; carrying out hot-pressed sintering reaction onto the pressed blanks under a vacuum condition, and preserving heat for dispersion, wherein a highest sintering temperature is 1000 DEG C-1150 DEG C, heat-preserving time is 120 minutes-180 minutes, highest applied pressure is 30 MPa-45 MPa, and pressure applying velocity is synchronous with heat-up velocity. TiC-strengthened Ni3Al-base composite coating prepared by the method and a powder metallurgical steel (iron) base body realize interface in-situ metallurgical bonding, and therefore, the high-strength anti-corrosion composite coating is compact in texture, excellent in performance and wide in application field.

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