abrasion hardness

Gray spot; the toughness matching between base metal and weld; lamination and seperation of steel and abrasion hardness, etc.

内容包括焊缝沟腐蚀问题、灰斑问题、母材与焊缝的韧性匹配问题，钢材分层及断口分离问题以及硬度偏低引起的耐磨性问题等。

Abrasion resistance . Proper hardness . High elasticity.

耐磨损、硬度适宜、高弹性.

Best for the high overlay welding requirement for hardness, resistance to wear, abrasion, and erosion.

适用于硬度要求高, 耐磨损、耐腐蚀材料堆焊.

By Make experiment of plunger case surface abrasion hardness, in the last, adopt high strength engineering plastic to act as anti-abrasive material, make the success, get great result.

通过对柱塞的表面耐磨层进行各种试验，最后采用了高强度工程塑料进行压注试验，取得了成功，效果显著。

Ceramics tile are widely used because they have many good characteristics sue has heat-resistance, abrasion hardness, wear-resistance, acid-proof, low-expansion and low-price.

陶瓷玻化砖具有耐高温、高硬度、耐磨损、耐腐蚀、低膨胀系数、价格便宜等特点，因而其用途非常广泛。