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 Posted: Thu 12:17, 20 Jan 2011 Post subject: Moncler jacken Filter used to solve the crankshaft |
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Filter used to solve the crankshaft and trachoma slag defects
The end of the tank and floating silicon iron three breeds. Slag perlite cover together. Pouring temperature is 1300 ~ l350C. Crank a box of four, single wet sand mold casting of hot metal from the short end of the crankshaft main journal (timing gear side) into the cavity. 2, slag, and the distribution of trachoma and trachoma causes the distribution of slag and part of Table l. Visible defects mainly in coral song short end of the spindle secondary and connecting rod journal and other hot metal flows through the site first, j Si check 【; -7 table, I, 1 liter cloth part of depression phthalate short end of the main journal axis of silicon rods fan spindle neck neck pull the long end total waste 355202j519 hl Jae () causes the slag is: perlite is sometimes used in cake residue has not been fully melted,[link widoczny dla zalogowanych], while scattered particles floating in the molten iron; coupled with cross-casting process Uehara Road shorter (100mrn), so that when the slag is not enough with floating; In addition, the hot metal filling is not stable,[link widoczny dla zalogowanych], easy to form a small secondary slag. Trachoma causes are: clay sand ash up to 15; the wet sand of low intensity. Is red sand in the casting; Also, put any pressure iron man accidentally poured the sand out of a few. 3, the filter specifications XR Ⅲ type of high temperature glass fiber A of the technical performance indicators in Table 2. In particular, modern cast iron melting point of the work of four Phase 2 capsule faded smell of virtual work, carving degree temperature gas evolution intensity of Ju Kun Wei-resistant properties of gypsum (℃) (℃) () (N, 4 根) (cm '/ s ) 【| / cm) is not black magic by foot type 100kS 17501450 8O 5 (50ram gate) for $ 195 ductile iron crankshaft,[link widoczny dla zalogowanych], changes in the casting process is relatively small by filtering useless. Note that the main point is: (a) pore size filter donkey-hide with 2.5 × 2.5mm. A hole is too small, the resistance of hot metal through the larger mesh is too large l, small slag particles easily pass through, would not achieve the role of Java files. (B) the appropriate length of the runner up, so that waste products have more time to float. (C) filter placed in the save with the lap runner, well placed in its last set of Java packages to enhance the set of residue effect. (D) filter filtration area of the hills, blocking the original area of 3 times. (E) Si-placed to make a solid filter, the suppressed part of the width of about 15ram, and refractory clay fixed. Indiscriminately on the hot metal organic maple filter file depression effects, can stay and catch too fast inclusions, but also to San adsorbed on A small hole around the inclusions. In general,[link widoczny dla zalogowanych], the early stage in the casting process,[link widoczny dla zalogowanych], the role of mechanical residue is the main file, in the casting process, the late inclusion of the adsorption of a small pride would rise significantly. Meanwhile, the filter also ignored the slow flow, the throttling effect, so that a smooth flow of hot metal, slag floating in the runner is easy to set the Java package. 5. Effects of S195 Crankshaft were compared before and after adding the filter test, the result is added after the filtration A trachoma slag and scrap rate dropped from 23 to 3, the effect is significant. In addition, 485,495,380 and 4102, and other filtration indiscriminately ductile iron crankshaft, the effects are satisfactory Gao. The role of post vent cut more than the island Chin, lead. Flesh <t stuffy /: @ f a j Island Iridium /;, tl [),, f c with the production of cast QT45m10 Shandong Special Automobile Works Church --- D 2 high-quality cast ductile iron ferrite low demand sulfur, high temperature, low-manganese, which has a cabinet for small and medium enterprises, is too difficult. Cast using ordinary nodulizer block, the effect is often not ideal. The end of 1992, I plant the introduction of new pink car Jilin nodulizer beam cast, were cast ductile iron test, access to the production of ferrite ductile cast iron some experience. 1. Production conditions, using 4t / h with two rows of very cold air from the cupola of acid, hot metal temperature t400 ~ 1460 , the ball of the total amount of interfering elements <0.1. Ji Lin Dongfeng powder beam using nodular cast, coke metallurgical coke in Shanxi, soil coke, pig iron using Yantai Iron Z14, modern cast iron 1994 fourth Q12. M Ⅱ 0 Orb treatment, with 75SIFo0.7 ~ 1.0 in the milling stream inoculation, after the birth by type of birth, will 75SiFe powder and rare earth ferrosilicon into the preparation and use a certain percentage of social-caking agent made from cylindrical blocks of birth , on the lower part of the sprue, and some depth with the surrounding sand mold clamping. Jane Qu rock set slag, covered. 2. Nodulizer powder beam characteristics and beam treatment process powder is characterized by nodular reaction of layered, smooth, less burning of magnesium desulfurization effect, adding to the time the package is not red hot temperature is appropriate. Measures are as follows: (1) nodular powder beam without spring after joining Real, covering 2 ~ 3kg iron I (2) using 1.5 ~ 2t ladle as well, by agent and the molten iron so the ball contact surface of a 95 -
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