The importance of helmet testing equipment for detecting the quality of helmet materials
Titanium Elbow,Titanium Alloy Elbow,90 Degree Titanium Elbow,45 Degree Titanium Elbow Baoji Qiyuexin Metal Material Co., Ltd. , https://www.qyxtitanium.com
A safety helmet is a hat that protects the human head from damage caused by falling objects and other specific factors. The most important part of the helmet consists of a cap shell, a cap liner, a chin strap, and other accessories. The quality of the cap and cap lining material also directly affects the quality of the helmet. How to determine the level of the cap shell and cap liner material, this can be determined by the helmet detection equipment for various performance testing of the helmet, the higher the performance requirements, the better the material. The following is a brief introduction to the introduction of the cap material and cap lining material:
1. Cap shell material The cap shell material of the helmet mainly includes synthetic resin, metal, glue and plastic. The cap material plays an important role in the overall impact resistance of the helmet. Therefore, suitable materials should be selected according to the caps of different structural forms.
Synthetic resin materials are widely used at present in China, and their types include unsaturated resins, polycarbonate, ABS, high molecular polyethylene, modified polypropylene, etc. The helmets made of these materials have good impact resistance. And light weight, good appearance quality, with a variety of structural forms to choose from. The impact resistance of a helmet requires a helmet impact tester in a helmet detection device to detect this performance.
The helmets of colloidal materials have good impact resistance and rigidity (which can be judged by the hard hat lateral stiffness tester of helmet testing equipment), high temperature resistance, corrosion resistance and antistatic performance. They have long been underground miners. The preferred use of a hard hat.
The use of bamboo strips to make hard hats is a unique material for China. It was adopted in southern China in the early years. The helmet prepared from bamboo strip has good toughness, good impact resistance, best air permeability, and poor puncture resistance. Generally, the steel plate at the top of the cap shell enhances the puncture performance, and the puncture performance can be detected by the helmet. Hard hat puncture tester to judge. The bamboo helmets are not resistant to combustion (combustion performance is determined by the helmet flame retardant testing machine of the helmet testing equipment) and cannot be used in workplaces with fire sources, and the bamboo safety helmets are hand-woven, and the quality is not easy to guarantee. . In recent years, the number of bamboo helmets in our country has become less and less.
Safety helmets made of metal materials (such as aluminum alloys) are inferior to plastic and glass steel helmets in impact resistance, and they cannot be used in workplaces where there is a risk of electric shock.
2. Hat lining material The material of the helmet visor is mainly high- and low-pressure polyethylene, synthetic fiber, cotton belt and so on. The cap lining material should have good strength and impact resistance, and should deal with skin harmlessness and allergic effects. When choosing the cap lining material, it should consider the coordination and cooperation with the cap shell performance.
This article is an article of Qingdao Zhongbang Instrument Co., Ltd. If you need to reprint it, be sure to add the source of the description. Reproduce the misappropriation without permission.