1 overview for a long time, in chemical, petroleum, pharmaceutical and food industries, control, transmission medium corrosion resistant valves are generally used in the line of stainless steel, enamel, ferrosilicon, ceramics and ptfe corrosion-resistant materials, glass fiber reinforced plastic is nearly 50 years developing rapidly a compound material. Glass fiber reinforced plastic with glass fiber reinforced material, reinforced plastic synthetic resin as the binder. With the development of China's glass fiber reinforced plastic, as reinforced material of plastic base, is made of glass fiber expanded to carbon fiber, boron fiber, aramid fiber, alumina fiber, silicon carbide fiber and so on. Due to the other glass fiber reinforced plastic material has better resistance to chemical corrosion, glass steel tube and the valve has been widely used. The general stainless steel valve in the high temperature hydrochloric acid and alkali conditions can't be used alternately, glass fiber reinforced plastic valves on price only 1/3 of the same size stainless steel valves. 2 analysis of the current domestic matrix resin is mostly the material of glass fiber reinforced plastic ball valve using modified phenolic resin, generally USES the short cut fiber reinforcing fiber. The glass fiber reinforced plastic ball valve can only be used under the condition of PN6, greatly limits the range of application, make FRP excellent corrosion resistant performance is not done in play. In order to meet the industry's growing valve use requirements and the need of all kinds of harsh demanding use environment, must be the existing FRP valve materials and processing technology was improved, make it suitable for higher pressure range. Of continuous glass fiber reinforced glass reinforced plastics, this paper firstly studies the material mechanics performance, on the basis of the known FRP material performance parameters of the export of glass fiber reinforced plastic ball valve design points. 3 ball Industrial Valves material selection used in the manufacture of the valve to the current domestic glass fiber reinforced plastic substrate materials mainly to two categories, epoxy resin and phenolic resin ( Including the modified varieties, such as: polyvinyl butyral modified phenolic, xylene modified phenolic resin, epoxy phenolic formaldehyde resin, etc. ) Give priority to, vinegar FRP valve and modified gorge nan resin glass fiber reinforced plastic Industrial Valves has a small amount of production. As the reinforced material glass fiber is different form, but limited to the molding process, mainly in the form of short cut fiber reinforced. Short glass fiber reinforced composite material performance is not high, the working temperature of all kinds of glass fiber reinforced plastic valve cap for 120 ~ 140 ℃, commonly working pressure of 0. 8 to 1. 0MPa。 The scope of work pressure equivalent to the low pressure the pressure of work area. Ball valves with FRP is introduced in this paper by continuous glass fiber cloth for enhanced body, with vinyl acetate resin ( vinyl Ester Resins） As the substrate material of composite materials. Continuous glass fiber cloth reinforced glass fiber reinforced plastic has good impact strength, creep, have good heat resistance, forming closed narrow, etc. Similar with glass fiber reinforced plastic pipe application conditions, vinyl resin heat resistance, corrosion resistance and processing performance is good, often used in the anticorrosion protection of chemical equipment. With continuous glass fiber cloth to replace the traditional short cut fiber as reinforced material can greatly improve the percentage of glass fiber content in the glass fiber reinforced plastic and enhancement effect. Glass fiber is the main bearing parts, glass fiber reinforced plastic glass fiber content to improve the overall will mean FRP mechanics performance boost. 4 material mechanical performance test 4. 1 test material test with material, composite material namely thick plate made from continuous glass fiber reinforced vinyl resin, fiber structure and forming process and new type glass fiber reinforced plastic ball valve production adopted by the continuous enhancement of fiber structure and molding process conditions are consistent, fiber content is the same. To facilitate the test surface ( Between the layers) Loading conditions, the performance of the composite materials, production of raw materials plate thickness is 60 mm. 4. 2 test process according to the standard requirements of the size of the test sample, made eight groups ( Each set of 5) The sample. Fix the specimen on the CSS electronic universal testing machine, and the load sensor, controller, power amplifier and computers connected to work together. Along the surface of inside and outside two direction, cutting sample 5 root, root cutting of 10 specimens. Test under the environment of 25 ℃, each set of test repeat five times. （ l） Tensile test test the loading speed of 1 mm/min, record the corresponding displacement load curve, connected sensors, in-plane tensile use YJY - at the same time 13 b stretch meter records corresponding to the load deformation curve. By computing will record the load deformation curve is converted into the corresponding stress strain curve, get the overall composite materials tensile elastic modulus and tensile strength. （ 2) Compression test test loading speed of 0. 5 mm/min, at the same time, record the corresponding displacement load curve. Compression test strength side cylinder is a diameter of 80 mm, sample at the center of the cylinder, beam through testing machine moved up and down the sample strength. Will record the load deformation of a curve is converted into a corresponding stress strain curve, get compressive elastic modulus and compression strength of the composite material. ( 3) Bending test test the loading speed of 1 mm/min, sample as a laminated beam, transverse three point bending test, and record the corresponding center displacement load curve. By computing will record the load deformation curve is converted into the corresponding stress strain curve, get the bending elastic modulus and bending strength of the composite. ( 4) Shear test loading rate is 0. 5 mm/min, at the same time, record the corresponding displacement load curve. Through calculation will record the load deformation curve into a corresponding stress strain curve, the shear strength of the composite.
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