Specimen Preparation

常用准备方法是在需作腐蚀试验的已涂覆试片上划出各种垂直、水平和十字形的线性划痕,以便检验涂层对于底层生锈的抗耐度。在这里除使用 VAN LAAR 划痕笔外,也常用 CLEMEN 划痕笔(属于供货范围)。偶尔也为进行网格切割试验而采用一支单式划痕笔。视用户需遵守的具体规定而定,该种划痕笔可用在加速腐蚀试验(例如:凝水试验,气体腐蚀试验,烟雾试验,连续浸水试验,交替浸水试验或短时风化试验)过程中对涂漆或涂层造成合乎定义的划痕损伤。

Specimen Preparation

Specimen Preparation

Scratching Tool acc. to van Laar, Model 426

涂层表面定义的划痕损伤,van Laar 划痕笔尖

Specimen Preparation

Specimen Preparation

SCRATCHMARKER 427

涂层表面定义的划痕损伤,笔尖:直径 0.5 mm

Specimen Preparation

Specimen Preparation

HANDCUTTER 428

涂层表面定义的划痕损伤,Clemen 划痕笔尖

Specimen Preparation

Specimen Preparation

Scratch Stylus acc. to Sikkens, Model 463

涂层表面定义的划痕损伤,Sikkens 划痕笔尖

Specimen Preparation

Specimen Preparation

CORROCUTTER 639

涂层表面定义的划痕损伤,可更换划痕工具