丝瓜视频看污片APP_丝瓜APP官网下载安装IOS_丝瓜成版人APP破解版_丝瓜APP官网下载地址安卓版

1. Purpose:

This machine is suitable for testing the degree of damage and discoloration of dyed leather materials after friction.

II. Principle:

This tester uses dry or wet wool felt placed on the surface of the friction hammer, and after a certain stroke and speed of reciprocating friction, the test piece is clamped on the friction table for a certain number of times to evaluate its degree of damage and discoloration.

III. Standards:

This instrument is manufactured in accordance with standards such as QB/T 2537 and ISO 11640.

4、 Instrument specifications:

*Friction hammer load: 500 ± 25g

*Auxiliary load: 500 ± 10g

*Test speed: 40 ± 2r/min

*Friction stroke: 35-40mm

*Wool felt: 15x15mm, thickness 5.5 ± 0.5mm

*Sample size: 120mmx20mm

*Clamp spacing: Min: 80mm

*Sample tension: Max: 20%

*Counter: LED LCD display 0~9999 times can be set

*Volume (WxDxH): 21x41x38cm

*Weight (Kg): ≈ 20Kg

*Power supply: 1 ? AC 220V 3A