Q:What is the difference between rubber expansion joint and rubber joint?

It is divided into 3 kinds: flange type, fixed flange type and thread type by connection. The structure can be divided into single sphere, double sphere and curved sphere. A tubular rubber component is composed of inner and outer layers of rubber, cord and steel ring, which is vulcanized and molded and then combined with a metal flange or a parallel joint. This product can reduce vibration and noise, and can be compensated by thermal expansion and cold contraction due to temperature changes. It is widely used in various piping systems. Rubber joint is a kind of pipe joint with high elasticity, high air tightness, medium resistance and weather resistance. The product uses rubber elasticity, high air tightness, medium resistance, weather resistance and radiation resistance etc., using polyester cord fabric skew high strength, strong stability and the hot and cold composite, after high pressure, mold temperature and curing. As the rubber joint has good comprehensive performance, it mainly acts as shock absorption, noise elimination and noise reduction. Therefore, it is widely used in chemical, construction, water supply, drainage, petroleum, light and heavy industries, freezing, sanitation, plumbing, fire fighting, power and other infrastructure projects.

Q:Is it necessary to use rubber products for steel structure buildings?

Some of the steel structures with small deformation are designed with rubber pads at the sliding bearings.

Q:Will rubber products fade?

It looks like, especially if it's outdoors for a long time

Q:How do rubber undergo vulcanization?

In the process of hot vulcanization, the general temperature is 10 degrees higher, and the curing time is shortened by about half. Rubber is a bad conductor of heat, which can easily cause uneven vulcanization.

Q:What are the differences in the properties of neoprene models?

Good physical and mechanical properties, oil resistance, heat resistance, fire resistance, sunlight resistance, ozone resistance, acid and alkali resistance, chemical reagents. The disadvantage is cold resistance and poor storage stability. With high tensile strength, elongation and reversible crystallinity, good adhesion. Aging resistance, heat resistance. Excellent oil resistance and chemical resistance. Weatherability and ozone resistance are second only to that of ethylene propylene rubber and butyl rubber. The heat resistance and the nitrile rubber, the decomposition temperature of 230~260 DEG C, short-term resistance at 80~100 DEG 120~150 DEG C, can be used for a long time, with a certain flame retardancy. Oil resistance second only to nbr. Good resistance to inorganic acids and alkalis. Cold resistance is slightly worse, electrical insulation is poor. Rubber poor storage stability, will have a "sulfur" phenomenon, Mooney viscosity increased, hard rubber. Foreign brands are: AD 1, 30 (USA), A-90 (Japan), 320 (Germany), and MA40S (France).

Q:What's the difference between plastic and rubber?

1. the main component of plastic raw material is graphite2.: plastic raw material is made of polymer synthetic resin (polymer) as main ingredients. The infiltration of various auxiliary materials or additives, the pressure at a certain temperature, and has the plasticity and fluidity, can be molded into shape and maintain the same shape of material under certain conditions.

Q:How can I get rid of the rubber?

One way is to use rubber deodorant is a kind of used to remove or reduce the acid degradation, all kinds of rubber produced in the processing or in the process of the use of alkoxy compounds, aldehydes, vinyl compounds, ammonia, CO2 plastic smell of chemical additives, the smell if inhaled for a long time will stimulate the senses give a person, discomfort or even harmful to the body, have two times of pollution to the environment, the chemical composition of different varieties of rubber and odor molecules are different, and in the actual development of Chinese ocean chemistry and etc. Ma'anshan Keli chemical is used in chemical chelation is also used, is the other mechanism, in addition to taste rubber both the rubber agent itself, also want to consider a variety of additives such as odor curing agents released, in addition to the use of rubber ingredients to improve rubber products and improve the level of environmental protection, rubber The production environment is of great help to the comprehensive utilization of regenerated rubber resources. A form of powder or liquid used in rubber, usually based on odor and odor characteristics

Q:Silicone is silicone rubber? Extracted from there?

Generally speaking, silica gel can be divided into two categories: organic silica gel and inorganic silica gel according to their properties and components. According to its composition, it is divided into extruded silica gel and molded silica gel.

Q:How to remove the rubber front?

The other is the freeze trimming method. Is a use of ultra low temperature makes the rubber and plastics flash rapid embrittlement of liquid nitrogen, and in this state, the flash frozen particles of high-speed jet impact products (fash), which not only can flash with high quality and high efficiency removal of rubber products (fash) and keep the special trimming equipment of all plastic products itself does not change. D shell Ba Quan?? especially in Japan, in the basic use of frozen trimming.

Q:How to improve the mobility of rubber material

Fully plasticated rubber use, reduce the Mooney viscosity, improve its ductility.