New product of liquid silicon balata and treatment are controlled

Shape with the hot vulcanization of traditional balata craft is compared, of liquid silicon balata shape when craft has a province energy-saving, prevent aftertreatment craft, product n is tall, become this low good point integratedly, consequently its apply extensively at electronic electric equipment, day to change things, spin, mould to make wait for an industry. The newest generation that the high-end orthopaedic insole of Mplus Footcare introduced GE but balata of silicon of liquid of moulding LSR and Kang Ning of LSR Topcoat path is tasted newly electric power of Beijing China International was exhibited 2006 on, company of American path Kang Ning is defeated for Chinese electric power matched an industry to roll out series technology of organic silicon application and product. Director of district of field of of company China electric power Mr Zhu Rong is in Daokangning exhibit during the meeting special did " liquid silicon balata applies at high pressure hollow insulator " report of special subject technology. Organic silicon insulating material because its are scanty water and anti-fouling character, can improve power transmission and distribution system to fight function showing subsidiary channels in the human body through which vital energy mediumly in harsh environment, use at creating insulator of low, medium, high pressure, hollow bushing, lightning arrester and maximum pressure insulation coating. And compare with common plastic balata and photograph of other silicon balata, liquid silicon balata has a lot of prominent dominant positions and characteristic, if not changeful body leaves in extreme temperature, expose Yu Jiang for a long time ultraviolet radiate is very stable, after cable accessory is installed, connect and sealed better, can prevent the surface effectively to show subsidiary channels in the human body through which vital energy to wait. Current, the accessory of cable of liquid silicon balata of company of path Kang Ning already got applied in green Tibet railroad. Green Tibet railroad is average height above sea level is high, geological and complex, frozen earth wide cloth, common power cable accessory cannot satisfy construction of electrified wire netting of this railroad along the line and environment completely to be opposite the special requirement of cable equipment performance. Geermu - Lhasa Duan Quanleng shrinks the outstanding performance performance of cable accessory is profit from path the technology of liquid silicon balata of Kang Ning company and solution. Company of rubber of silicon of Laur of balata of silicon of Laur odd constituent liquid rolls out balata of silicon of a kind of new-style liquid to field. This kind of material uses smooth vulcanization technology (EC) , solved a few problems that balata of silicon of liquid of current double constituent exists. This kind of material can be fastened as monomer (IP) after cooperating adequately, supply. Balata of silicon of double constituent liquid needs to mix before use, inevitably presence is local deserve to compare undeserved problem. To double constituent system, if pump moves abnormal, deserve to compare undeserved material with respect to meeting generation. The vulcanization cycle that mixes to all can not affect balata and physical function. Of double constituent glue store life not 3 days over, should mix equipment so long need not when, must clear its clean. Clear only A and B constituent among them when, scale mixes when after can bringing about equipment, be being enabled undeserved, create the waste of material. The system has the data that uses new smooth vulcanization technology to store longly life, reason should mix equipment long need not when need not clear or clean is changed. With silicon of existing double constituent liquid balata photograph is compared, balata of this kind of new odd constituent silicon has similar property, and deposit stability is improved significantly. Store in storehouse after 6 months, to its function has a test. The photograph before be the same as 6 months is compared, the vulcanization curve of balata of silicon of this odd constituent liquid and physical performance did not vary almost. Through the experiment of a week depositing sample below 71 ℃ , proved the stability of this kind of new system again. The stability with smooth vulcanization good technology makes likewise anxious burn performance profit, be in longer the security that vulcanization process increased below time full a pattern. This worse to the mould is designed and charging a pattern situation is very helpful. What the vulcanization time of balata of silicon of liquid of odd constituent system compares double constituent system is long, because its are anxious,this basically is burn time longer. How much does the vulcanization rate of stable vulcanizing system differ unlike double constituent system. Material can achieve management board of American food medicaments (FDA) requirement. After sample size passes 2 paragraphs of vulcanization, press CFR171.

2600 tests. Sample passed the strict test that perhaps opposes Fu and the product that food contacts for a long time. Because have,store longerly life, balata of odd constituent silicon can be supplied with the means that cooperates completely. The existence when this decreased to mix deserves to compare undeserved possibility. Odd constituent is supplied after silicon balata is OK and chromatic, do not need to resemble balata of double constituent silicon adding colorant to mix before mould pressing shapes euqally. Accordingly, simple pump can replace existing mixed juice to measure equipment. Inject of balata of Nextpage liquid silicon shapes because the viscosity of LSR is inferior,control, shape in inject in the process, although be below the circumstance with inject inferior pressure, fill velocity of flow also can be compared fast. The cycle time of contemporary LSR fast vulcanization is shorter (the cycle time below certain circumstance is less than 20 seconds) , to make full use of this one character, forming machine of treatment machinery, inject and component move system must cooperate each other, as a height compositive whole is run. Cold flow path shapes the serious treatment that cold flow path shapes is balata of liquid state silicon is special one of a note of the ancient Chinese five-tone scale. The device of cold flow path that uses at present has two kinds of basic kinds, close namely system and open system, they have actor drawback each. Compare with vented system photograph, close the characteristic with the most typical system is undertake noting model below inferior inject pressure. In equipment adjustable accuse " reduce expenditure mouth " can be opposite of lopsided runner and stock different cut wind shear rare function to undertake fine tuning. Defect is right certain the part that gives size and mould, equipment needs additional adjustment. Open system is used through nozzle or of valve tall cut rate, when inject pressure is reduced, undertake cut flows. Usually, the cavity fill time of open system should be compared close system a little a few shorter. Open system because runner and nozzle are lesser, cavity density is higher. Runner asks to be balanced naturally, and with stock itself shed denaturation to be able to match strictly. Because the flow path dimension of open system is lesser, so normally need not adjustable " reduce expenditure mouth " , need common valve to be able to control flow well only, gain first-rate pressure point. Because LSR viscosity is low,distribute modular line, must ensure the accuracy of the molded lines that distribute a model, avoid occurrence Mao Bian. The geometrical appearance of the component and the position of the line that distribute a model still can affect velar process. In component design, slight root is cut conduce to ensure by model stably union is together between component and mould cavity. Although liquid silicon balata shapes in inject,contract did not contract in the process, but because silicon balata has more expensive hot coefficient of expansion, connect regular meeting to have the systole of 2%-3% after taking off film, refrigeration consequently. Exact contractive data basically depends on stock recipe, but in light of the viewpoint from treatment, if the architect is being conceived when, if a few elements that contract to the influence beforehand consider somewhat, last contractive case can change somewhat, the temperature that these elements basically include to machine, stock takes off pressure of velar temperature, cavity to wait. Exhaust eliminates the optimal method that cavity sluggish leave a blank enrages, it is in each inject shapes in the loop, the method that uses vacuumize will stay in air to drive away in cavity. That is to say, ensure when the design distributes modular line the mould is airtight, vavuum pump passes the clamping apparatus below mould switch to have place cavity vacuumize. Once vacuum is spent,achieve expect standard requirement, shut a mould immediately, begin injection. The method that still has a kind of success application is, use adjust clamping apparatus strength is achieved drive away airy purpose. Maker comes in fill of the LSR when clamping apparatus force is inferior the 90%-95% of cavity, increase clamping apparatus strength again later, avoid balata of silicon of liquid of keep long in stock to spill over at the same time, produce Mao Bian. If sprue uses system of cold flow path, it is very important that effective segregation temperature is installed between hot cavity and cold flow path. If runner is too hot, stock begins solidify before inject, and if refrigeration is too fast, it can absorb overmuch quantity of heat from mould valve area, prevent hindering solidify finish. Close systematic valve or it is actuate is sold, general design is 0.

5-0.

Between 8mm, with assuring the mobile space of the stock that sell and flows all round it. And in vented system, nozzle and valve want normally a few smaller (0.

2-0.

5mm) , so OK better control flow. In addition, drawing of patterns of design of mould material, structure, adiabatic design, goods is the element that needs integrated consideration. CNC Milling