The ultra-high temperature special protective sleeve produced by Hebei zeal Province is specially developed and manufactured by our company for the protection of cable and pipeline in high temperature industries such as steel works, coking, metallurgy and so on. It is made of high purity non-alkali glass fiber braided and coated with imported silicone rubber and vulcanized at high temperature. It is very safe and environmentally friendly, and is the best substitute for asbestos and other hazardous products.
The product is wear-resistant, tear-resistant, asbestos-free, loss of about 2%, due to low temperature storage and has good insulation, resistance to liquid metal, spark, iron slag, oil, grease, solvent, but the surface with a layer of silicon surface, gloss, UV, oxidation resistance, weather resistance, good oil resistance and resistance. Dirt, acid and alkali resistant provide protection for liquid metal and metal spray.
It is generally distinguished by different alkali metal oxide content.
E-glass fiber (E glass fiber) Alkali metal oxide content less than 0.05% Chemical stability, electrical insulation properties, good strength, good water resistance, mainly used as electrical insulation materials, glass fiber reinforced materials, etc.
Alkali glass fiber (C glass fiber) Alkali metal oxide content 11.5-12.5% high alkali content, can not be used as electrical insulation material, but its chemical stability and strength is still good. It is generally used for latex fabrics, woven fabric substrates, acidic filter fabrics, and window screening substrates. It can also be used as a glass reinforced plastic material that does not require strict electrical properties and strength. Lower cost and wider use
Why is alkali-free glass fiber water resistant?
The role of water and glass fiber is firstly to attack the alkali metal oxide on the surface of the glass fiber, and the water is alkaline. With the increase of time, the glass fiber and the lye continue to act until the silica skeleton is destroyed, so the alkali-free glass fiber The advantages emerged immediately.
Why alkali-resistant glass fiber has good acid resistance?
Acid and glass fiber surface metal oxides, metal oxides (Na2O, K2O) segregation, dissolved; acid and glass fiber in the role of silicate to generate silicic acid, silicic acid rapid polymerization and gel into a gel, a glass surface to form a A very thin layer of silicon oxide protective film, practice has shown that Na2O, K2O is conducive to the formation of this protective film.
What are the factors that affect the strength of FRP?
1.Effect of Fiber Diameter and Length on Tensile Strength The finer the diameter, the higher the tensile strength and the greater the length of the fiber, the lower the tensile strength.
2.Influence of Chemical Composition on Tensile Strength The higher the alkali content, the lower the strength. E-glass fibers have 20% higher tensile strength than alkali glass fibers. E-glass fiber molding temperature is high, the hardening speed is fast, the structure of the bond can be large sodium oxide, potassium oxide and other basic oxides to help the oxides, which mainly through the destruction of the glass framework, so that the structure is loose, so as to achieve the purpose of dissolution. The higher the content of sodium oxide and potassium oxide, the corresponding decrease in the strength of the glass fiber.
3.Effect of storage time on strength The strength of fiberglass after storage for a period of time will decrease – the aging of fibers. Reasons: Water and oxygen in the air eroded the fibers
4.The effect of the load time on the strength The strength of the glass fiber is especially noticeable when the ambient humidity is lowered with the increase of the applied load time. Reason: The moisture adsorbed in the micro-crack accelerates the micro crack propagation speed under the action of external forces.
Summary: E-glass fiber strength and water resistance and electrical insulation are better than the alkali glass fiber; but the alkali-resistant glass fiber has higher acid resistance and economic advantages than non-alkali glass fiber.
| Electrical insulation
On April 26th, a special provincial aviation supervision and training meeting was held in Shijiazhuang City in the second quarter of the 2018 special environmental protection law enforcement campaign and “Clearwater 2018” special enforcement inspection. The deputy director of the Provincial Environmental Comprehensive Law Enforcement Bureau Ren Liqiang conducted arrangements for the relevant work. The director of Zuo Jun, the discipline inspection team of the Environmental Protection Department of the Province, put forward specific requirements on the work of clean government. Prof. Yang Jingliang from Hebei University of Science and Technology and Deputy Director Wang Yuan of the Provincial Bureau of Environmental Comprehensive Enforcement The staff conducted on-site lectures on the characteristics of the sewage treatment process, law enforcement inspection techniques and applicable laws.
Hebei Zeal Fiberglass Products Co., Ltd. is the largest production and R&D base in China for high-temperature fire-resistant bushings, heat-resistant bushings, flame-retardant bushings, glass fiber bushings, and hasp-type fireproof bushings. It is also an environmentally friendly demonstration enterprise in Hebei Province. I would like to follow the chairman’s sentence: Green Mountain is Jinshan Yinshan. We do our best for blue sky business in China.
The 2017 International Group North superior business conference held in Baoding, Hebei Zeal as a good corporate fireproof materials career actively participated in the meeting.
The meeting reviewed the course of development of the outstanding representatives of businesses, from the course of domestic enterprises gradually to the foreign trade enterprise transformation, witnessed the great change of Chinese products to the world, Hebei Zeal as the leading enterprise in high-temperature industry, provide the high quality fire sleeve, flame retardant sleeve, and other high temperature resistant insulating fireproof material to abroad, at the same time bring Chinese service, wisdom, and friendly spirit of unity to the whole world.
Hebei Zeal will have been committed to the development and production of refractory materials business, make Chinese North foreign trade enterprise to strive for further improvement.
Firesleeve, made of high quality purified silicone rubber coated with alkali free fiberglass. Widely used for cable, pipes, hydraulic hoses protection in steel mills, coking, metallurgy and other high temperature industries. It has the characteristics of heat insulation, flame retardancy, wear resistance, high temperature resistance, insulation and fire protection. Protection of large machines within the high temperature environment, normal operation, protection of workers safety, fire prevention and other disasters. Hebei Zeal fiberglass materials as high temperature protection business leader, plays an important role in the global heat protection enterprise, Hebei Zeal will remain committed to the flame resistant sleeve and other high temperature resistant material production and research and development, not only contribute to the domestic high temperature protection utilities, but also product to the world, let the world fall in love with China manufacturer.