Zinc and zinc alloy surface treatment method

[ Method 1] Common solvents for degreasing: trichloroethylene, acetone, methyl ethyl ketone, ethyl acetate, and gasoline.
[
Method 2] After degreasing, it was immersed in the following solution at room temperature for 2-4 minutes : hydrochloric acid ( 37% ) 10-20 water   90-80 washed with warm water, washed with distilled water, at 66
-71 °C Dry for 30 min .
[
Method 3] in the following solution
38 ° C Immersed 3-6min: sulfuric acid (d-1.84) 2 1 Water 8 weight sodium chromium by cold water, distilled water, in 40 ° C Dry down.

Load Moment Indicator

A load moment indicator is an instrument used in determining whether a certain load could be carried by the Tower Crane or not. When the operator runs the tower crane, load moment indicator could show the comprehensive working condition of the tower crane, which help him run the tower crane safe and effective.

Models of load moment indicator: RC-A5-I load moment indicator, RC-A5-I Tower Crane Load Moment Indicator, Load Moment Indicator CXT30.

When more than one set of tower crane work at the same time, Tower Crane Anti-collision Safety System will be required. A multi-function Safety System for Tower Crane integrated load moment indicator with anti-collision & zone protection system and remote online monitoring system. It indicates real time working states of tower crane and tower crane group both in operator cabin and online. In the meantime it combines functions including black box, anti-collision & zone protection.The system is applicable to various types of level-jib and luffing tower cranes. It adopted the most advanced ARM embedded intelligent microprocessor technology, high precision digital azimuth sensor, weighing sensor, angle sensor.which greatly enhanced data processing capability with higher precision and higher stability.


Tower Crane Load Indicator,Zone Protection System,Tower Crane Anti-Collision Safety System,Anti-Collision System,Crane Monitor System

SHEN YANG BAOQUAN BUSINESS CO., LTD , https://www.sytopkittowercrane.com