耐擦洗試驗機

ERICHSEN 耐擦洗試驗機494 MC主要用於評估油漆

塗層的耐擦洗性

主要用於評估油漆

塗層的耐擦洗性. 測試參數可靈活設置也可用於客户

特殊的測試用途如測試清潔劑等.

測試原理（摘錄原標準）

a) Test in accordance with DIN 53 778- 2 *)

The scrub body is a defined pig bristle brush, which

is charged with 250 g. The washing fluid is

continuously fed by a micro dosing pump. Whether

the contamination has been removed or the coating

is scrubbed through to the substrate, will be

checked after an agreed number of scrubbing

cycles.

*) withdrawn, replaced by DIN EN ISO 11998

b) Test in accordance with ASTM D 2486

The scrub body is a defined nylon brush, which is

charged with 454 g. The washing liquid is applied

manually during the test at regular intervals and in a

defined amount. For sharpening the wear effect of

the scrubbing action, a narrow thin strip of metal

sheet will be placed centrally and transversely to

the stroke direction unter the foil. The test result is

the number of double strokes up to scrubbed

through to the substrate.

c) Test in accordance with DIN EN ISO 11 998

The scrubbing body is a defined type of abrasive

pad **) loaded with 135 g, which is moistened prior

to the test only once with a defined quantity of the

washing fluid. After scrubbing strain (200 double

strokes) the mass loss per unit area of the coating

and the average layer thickness loss will be

determined.

**) Abrasive pad "3M Scotch Brite, No. 7448" can be obtained

from the local dealer.

工作原理

儀器底部螺絲可調水平，上面裝有鋼槽用於測試. 兩

側配備樣品夾緊裝置.通過精密地步進馬達和微處理

器確保運行速度準確可靠，具有極高的重複性.

可旋轉的摩擦刷固定架可以同時安裝3個摩擦刷，這

樣可以同時進行3個測試.

通過按鍵和6位顯示屏進行操作，具有以下功能:

- 控制行程 (啓動，停止,重置),

- 設置測試參數 (摩擦速度, 路徑,摩擦次數),

- 可存儲最多20個測試程序。

尺寸 (WxDxH) (590 x 370 x 280) mm

重量 (淨重) approx. 22 kg

電源 (100 - 240) VAC

(適配器) (47 - 63) Hz, 24 VDC / 3 A

摩擦速度 (5 - 70) 次/min

摩擦路徑 (10 - 300) mm,