lojmikak
Dołączył: 30 Sie 2010
Posty: 1597
Przeczytał: 0 tematów
Ostrzeżeń: 0/5
Skąd: olvovw
|
 Wysłany: Śro 1:31, 12 Sty 2011 Temat postu: Moncler jacken Shortage of Sb, Bi, prices continue |
 |
|
Prices continue to rise in short supply, Sb, Bi
Turn directions, slowly rotating, paint and wax to make full contact, lift, turn the module, throw off excess paint, and to observe whether the coating evenly coated hanging, not coated to the cusp at and small bubbles, stick with a brush pulp brushing or spray gun, and threw 80 ~ 120 mesh zircon. The complex structure of the ring nozzle not easy to dry, so dry and room temperature should be controlled to about 25 ℃, the humidity at 60%, dry 5hE5.1.2 layer 2 layer 2 making use of 200 to 270 mesh powder and gangue Sol by powder liquid ratio (mass ratio) the ratio of 2.2:1, in the I-mixing bucket full mix, dip slurry, the coating also linked to state testing,[link widoczny dla zalogowanych], not painted with a brush at the brush hanging. 70 ~ 100 mesh gangue spreading sand, dry conditions, with the first layer, the drying time is greater than 8h. 5.2 The production of water glass reinforced layer selection of Layer 3 2.8 3.2 modulus of water glass and the 200 mesh coal gangue powder, press powder liquid ratio of 1.2: l ingredients, stirring in the mixing barrel 2h linked to post-coated, sprinkle sand 40 to 70 mesh gangue, and then release the hardening solution hardening of aluminum chloride 25min, raised to dry, ready to hang the next Tu. Layer 4 to increase powder liquid ratio and powder liquid ratio of 1.3:1, and threw sand level has increased accordingly, and threw 16 to 30 mesh gangue sand. 54 in turn linked to the 6th floor coating, and then stick a layer of paint, dry it 24h. 5.3, after dewaxing process modules will dry it and put in 95 ℃ hot water dewaxing. Because it is a water glass composite shell silica sol, silica sol in the wet strength is relatively low, so when using hot water dewaxing, as soon as possible to heating to 100 ℃, and boiling water can not make wax from the shell as soon as possible of prolapse. 6.1 6 alloy melting fast frequency induction melting furnace at 150kg in the melting charge back, new steel, ferrochrome ingredients calculated by charging, charge all the melting, the temperature to 1600c 【=,[link widoczny dla zalogowanych], add warm ferromanganese, calcium powder mixing, sampling, testing, adjusting the chemical composition, plus coverage of flux protection. 6.2 to 1080 ℃ pouring the module roasting fork on centrifugal casting machine, open the centrifugal casting machine, molten steel were cast in smooth water, stop, next and then pouring the next lift, pay attention to the temperature of the steel, when temperature below 1600 ℃, it is necessary after pouring temperature. 7 Conclusion ring nozzle casting a water glass by sol composite shell, and use self-designed centrifugal casting machine casting, the ring leaves the nozzle filling a full, smooth surface, finished more than 95%. So for the ring, thin-walled parts can be reduced by way of centrifugal casting poured less defects and improve yield. References 1 Xi-year. Shaped castings vertical centrifugal casting technology and application of Special Casting & Nonferrous Alloys, 20H0O (5): 30 ~ 322 China Foundry Association. Casting Handbook. Beijing: Mechanical Industry Press, 2000.3 ginger is not home. Casting. Beijing: Mechanical Industry Press, 2004.4 leaves for a long time salary, Wang Liren, children were good. A sodium silicate composite coating sol casting production in the application. Special Casting & Nonferrous Alloys,[link widoczny dla zalogowanych], 2000 (4): 45 ~ 465 Hai tree. Shell Casting cost composite analysis and process improvement. Special Casting & Nonferrous Alloys, 20H05, 25 (2): 110 ~ 1116 LUO Qiong, Merger and Micropropagated,[link widoczny dla zalogowanych], etc., SKP-27 silica in the precision casting fast in thousands of applications. Casting co. 20H05 (3): 179 ~ 181 (Editors: Wen Wei ),[link widoczny dla zalogowanych],\shortage of supply from China, the U.S. market antimony prices continue to rise now ii grid transaction price USD380H0 ~ 390H0 / t (ii warehouse delivery price), while the previous price of USD3750 ~ 3850 / t. concentrate supplies remain tight, cross- ii Dealers reflects the Chinese supplier firms control the number of suppliers. i; U.S. buyers still want to buy, demand has been good, but the number of transactions did not l; has increased a lot. Chinese enterprises supply a limited number of suppliers, the United States domestic production is also '+ limited, tight supply market. estimated prices will soon break USD4000 / t mark, {+ as supply and demand will continue strong. + t concentrate due to strong demand and short supply, bismuth metal prices has risen, the price + t from USD8.8 ~ 9,2 / kg up to USD9, 2 ~ 9.6/kg, the Chinese supplier firms continue to tt to test the market at higher prices reflected. (metal smelting Information Service center feed)? k + + A + A + + eleven + + A + + + A + + A + A + + A + + A + + A +. 』
相关的主题文章：
[link widoczny dla zalogowanych]
[link widoczny dla zalogowanych]
[link widoczny dla zalogowanych]
Post został pochwalony 0 razy
|
|
