Why is it best to use aluminum dihydrogen phosphate as a binder when producing steel-plated skateboards?

At present, most steel mills will use slide gate to pour steel because of the high temperature of molten steel, long pouring time, many times of switching, frequent shrinkage and punching, harsh working conditions of the slide plates used, and strict quality requirements. If the slide plates are not of good quality, the thermal shock stability is poor, and the erosion resistance is low, during pouring, the slide plates are often too large or cracked due to erosion of the steel holes through the slide plates by the molten steel, resulting in lax closing and steel piercing accidents.

Therefore, the quality requirements for raw materials and binders are particularly high in the production of skateboards. Through experiments, we first select water glass, phenolic resin and aluminum dihydrogen phosphate as binders for products. Products using water glass as binders have poor high humidity performance and serious scouring and erosion after casting steel. Products using phenolic resin as binders have good high temperature performance, but their normal temperature performance is brittle. Particles are easy to fall off when grinding bricks and produce pits, thus affecting their use. In addition, during the brick making and pouring process, phenol in the resin and amine in hexamethylenetetramine both escape, causing unpleasant smell and environmental pollution. Moreover, the price of phenolic resin is also relatively high, thus increasing the cost of products. After comparison, aluminum dihydrogen phosphate was finally selected as the binder. Bricks made of aluminum dihydrogen phosphate binder overcome the disadvantages of bricks bonded with phenolic resin, and the bricks bonded with phenolic resin have better performance at normal temperature and high temperature.

Zhengzhou Yucai Phosphate Chemical Factory specializes in the production of sodium hexametaphosphate, sodium pyrophosphate, sodium tripolyphosphate, disodium hydrogen phosphate, industrial phosphoric acid, trisodium phosphate, aluminum dihydrogen phosphate, solid aluminum dihydrogen phosphate, liquid dihydrogen phosphate Aluminium, sodium dihydrogen phosphate and other phosphate series products, after more than 30 years of continuous pursuit and development, relying on skilled chemical technology and product development, equipment renewal and established a good cooperation and sharing relationship with many universities, In the chemical industry, we have branded (Yucai Phosphate)!