JINGKELIAN QKL-II initial drying crack resistance Tester GB9779 standard

Application

The QKL-II initial drying crack resistance testing machine designed and manufactured according to the national standard GB9779-88 is mainly suitable for the initial drying crack resistance test of architectural coatings and indoor and outdoor building putty under the condition of specified wind speed.

Principle and structure

1. Principle:

A test panel rack parallel to the air flow direction is installed in the wind tunnel. After starting the axial flow fan, use the air volume control device to control the wind speed within 3±0.3m/s, and place the coated test panel in the wind detection tunnel. On the test plate rack in the machine, adjust the drying control time according to the product standard requirements. After the time is up, it will automatically stop and visually test whether there are cracks on the surface of the plate.

2. Structure:

The testing machine is mainly composed of an axial flow fan, a test wind tunnel, a test piece rack, an air volume control device, a timer, an anemometer, etc.

Initial drying crack resistance testing machine X1, operation manual X1

[Note] Because the manufacturer's packaging may be updated or upgraded, the detailed packaging list shall be subject to the latest standard configuration of the manufacturer.