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 Posted: Fri 10:57, 07 Jan 2011 Post subject: air jordans PE-01 type silicate sand collapsing _2 |
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,[link widoczny dla zalogowanych]
PE-01 type silicate sand and application of collapsing Agent
The process of sodium silicate sand impact of fat, especially affected the dry strength. PE-ol collapsing agent on the dry strength of sodium silicate sand can be seen in Table 5, plus PE-Ol-type collapsing agent, sodium silicate sand dry strength increased slightly. This is because the components of a collapsing agent under certain conditions, can produce a certain adhesive force,[link widoczny dla zalogowanych], from the binder, and improve core strength so sand, PE to join a 01 save powder. Not reduce the strength of 3.3 several core sand collapsing agents can compare our current collection to the agents of several collapsing D comparison test, the results can be seen in Table 6, PE collapsing a 01 agent. The comprehensive performance superior to the other several collapsing agent. Especially the 800 \In addition PE-O1 type less collapsing agent added. Low cost, the cost per ton of sodium silicate sand to increase a 0l stains less decline 5PE adding amount of powder and water glass sand Fu dry strength tensile strength of dry powder dosage (MPa) () immediately lh2Oh3Oh45h54h0 maggot 206Z30700.803O00.75007O006500. BO38207l30750O. 663073E0.40.12503400807O8150.8Z50.817 ratio of water glass with the addition of Table 4, 6 different types of bad dose of sodium silicate sand collapsing performance (water glass sand recipes with Table 4) stain powder dispersion models turn to farming increases the amount of core sand j water core temperature and pressure dry tensile strength of silicon (MPa) high-temperature tensile strength of dry residue (MPa) and the origin')()( MPa) lh124h48h400CS00C600 ℃ 700 ℃ 800 ℃ § 00 ℃ 3.5505000.2100285PE a 01 Changchun 3.50D. 004804700.467O. 4l70158O. 108O. 0690089O. 072YK a 1 Qishuyan 2.04.000.004402200. Z670.200Ol220.1050.1370.1930.140 Henan cover a wide 2.03.500270l033303670.1330.0890.1250.1980.17W84 Wu 35l0D0480397l04 (Ⅲ 0.3830.2430.1300.0690.098c1 & 3.530368f03160 · Z95O0Bl4 production applications PE of a collapsing agent 0l-type steel plant in Changchun Bus Factory application test for the small cattle production. has in the bolster, the use of sand core architecture framework, a single roll casting Chen weight were 1200kg and 631kg, wall thickness l8 ~ 30mm, made of zG230 ~ 450. PE 01 stains King stripping a dosage of 0.4 to 0.6, bearing the glass addition is 6.5 to 7.0. After two months of production and application indicates that the production process stability. easy to operate, out of the core sand mix feel good, non-stick for the box, easy liquidity is also very good tight, blowing CO. later. sclerosis speed ', made out of sand the surface smooth and dark green. No moisture absorption,[link widoczny dla zalogowanych], high strength , can still be used after 3 days storage. After pouring the water tank explosion hit, got the cast 『bovine smooth surface,[link widoczny dla zalogowanych], no sticky sand; within the specified time. castings can burst out of the sand core cavity. occasional difficulties for other reasons is not broke The shovel with the wind are more easily removed pit, sand core base car has crisp clean-up significantly reduced the workload of the small cast. More importantly, using the PE-oL collapsing agent into the water after the casting temperature from 540 ~ 560c down to 45o ~ 470 \; C, the casting greatly reduced tendency to crack the \. with non-stick mold, rapid hardening, high strength, non-hygroscopic, powder surface sand core sand, etc. can be stored more than 6h. (2) PEril type of powder material easy to get whipped. the production and use of the process does not produce pollution, non-toxic, non-ignorant, non-corrosive, harmless to human body resistance (3) The production tests showed that adding a 0l-type PE sodium silicate sand collapsing agent,[link widoczny dla zalogowanych], process performance is better. COz after hardening, high strength, pouring into the water after the casting the case of low temperatures can all burst sand core, and the casting surface finish. no sticky sand, pieces of zinc to reduce the small tendency to crack. but also reduce the casting of the clean-up work (4) compared with the existing collapsing agent , PE agent of a collapsing 01 of the performance are superior to the performance of several other agents add less collapsing. low cost with good economic and social benefits. Received: l0 September 1993 at 39
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