Ceramic heater is a kind of high-efficiency heat division uniform heater, excellent thermal conductivity of metal alloy, to ensure uniform hot surface temperature, eliminate hot spots and cold spots of the equipment.
There are two types of ceramic heaters, which are PTC ceramic heating element an...
Cast aluminum electric heater is a kind of electric heater. Electric heater varieties include: cast aluminum heater, cast iron heater, quartz tube heater, stainless steel electric heating tube, No. 10 steel heating tube, heating tube with winding heat sink, VC443, VC442, VC441, VC432 induction he...
1. Color
In general, machine straps are brighter in color than hand straps. Usually, customers can judge by color. The more transparent the color, the purer the raw materials used in the strapping belt, and the better the gloss of the strap. Customers can also distinguish whether it is hand or m...
The previous article introduced the common types of nylon brush filament. In this article, other types of artificial brushes are to be introduced that are used in large quantities.
PP: The biggest feature of PP is that the density is less than 1, and several of them can be placed in water when te...
There are many kinds of brush materials. In early time, people mainly use natural wool. The so-called natural wool are non-synthetic materials that are collected and used directly, such as pig bristles, wool and other. Artificial fiber like PA, PP, PBT, PET, PVC and other plastic filament have th...
(1) Develop and develop fibers with better performance, strengthen the adhesion between the fiber and the matrix, improve the elastic modulus and anti-aging performance of the fiber, improve the dispersion of the fiber in the matrix, and prevent the deterioration of the performance of the fiber i...
2.2 Nylon fiber concrete
Nylon fiber concrete is one of the earliest polymer fibers used in cement and concrete, the price is relatively high, and the application is limited. The incorporation of nylon fiber can significantly reduce the dry shrinkage value of concrete, but the flexural, compressi...
2.1Polypropylene fiber concrete
From the research situation in recent years, it can be seen that polypropylene fiber reinforced concrete is the most widely studied fiber reinforced concrete material. Research at home and abroad focuses on the physical and mechanical properties of fiber concrete,...
1.3 Improvement of impact resistance to concrete
Impact resistance refers to the ability to resist the damage caused by the impact of an object when it is impacted. After organic fibers are incorporated into concrete, the compressive strength and flexural strength of concrete are increased to var...
Due to its high compressive strength and low cost, concrete is the most used building material in the construction field. However, due to its large brittleness, easy cracking, low impact resistance and other shortcomings, it restricts its further development. The use of organic synthetic fibers t...
Concrete is a brittle material with high compressive strength and relatively low tensile strength. With the continuous development of modern construction technology, higher requirements have been put forward for cement concrete, the largest building material. Therefore, ...
30s is a specification of polypropylene, mainly used in the production of membrane crack fiber (agricultural rope, string, spinning, etc.) monofilament, stretch film, tube film, etc. T30s is the lightest of the general-purpose resins, with good rigidity, light transmission, corrosion resistance, ...