Document a42vq2V7LGZMoGM9542joYrge

BMiiBK praiMte. IM. 2210 lbrwtt **., AW. / Mart*. toxjt 30311 / XAWC Vm Co* 404 TWI1MJ141W April 11, 1972 Mr. J. J. Marino, Chief Engineer Quigley company, xnc. 235 E. 42nd Street Hew York, N. Y. 10017 . Dear Mr. Marino: Thank you for your interest in Glasroek products. Please find enclosed literature describing Glasroek castables as requested through our subsidiary Findlay Refractories. Should you need additional information or samples, please let us hear from you. Very truly yours GLASROCK PRODUCTS, INC REFtal cc: Mr. John Oakes Mr. l. D. Leonard Ralph E. Frost, Supervisor Fused Silica customer Services 75 02261 3IA8R0GK product*, Inc. PRODUCT INFORMATION GIASROCK CASTABLES Glasrock Castables Include our 3 and 8 Series. These castables are tailored for use to save tine on the job. and to allow for easy forming of refractory linings in hard-to-get-to places for shapes that are difficult to manufacture The growing family of GPl Castables allows a wider choice of selection for the specific and varying needs of our customers. Tvoical Product Data _ Brand Chemical Analysis Major Oxides: Si02 CaO AI2O3 Recommended Temo. Limit: Water needed (added) for vibration castinc: Bulk Density, pcf: after 220 F after 2200 F after 2750 F Cold Crushing Strength, psi i after 220 F after 2000 F after 2750 F Linear Change, %: after 220 F after 2000 F after 2500 F Castable 8201 63% 8 29 2600* F 16% 113 110 ee 7000 5000 -0.5* -1.2 - Castable 840 70 % 7.5 22.5 2700*F 15% 117 111 3600 2600 -0.1 -0.3 - Castable 320 Tr. % 4 95.3 3400 F 9% 169 164 157 6000 5300 5000 -0.2 -0.3 -0.7 Castable 820T (Technical Grade), similar to Castable 8201, is carefully controlled as to shrinkage on heating and shows a maximum of 0.2% linear shrinkage after 600 F for 24 hours and a maximum of 0.5% linear shrinkage after 19 hours at 2000 F. Castables 820 I. T and 840 all contain fused silica as the main ingredient. A high purity, hydraulic setting cement is used as the binder. Many of the physical properties of Masrock R are preserved in these convenient castables, including: volume stability, thermal shock resistance, low thermal conductivity, and light weight. 628 75 02262 Castable 8201 is fine grained and is easily east into narrow openings or for thin linings; casting is the recommended method of *placesat. Castable 840 is a coarser mix better suited to vibration easting or ram- s* ming in thick sections. Castable 840 has excellent volume stability; its price indicates its economy in large installations. Castable 820 is carefully formulated to meet stringent volume stability requirements; ceramic tooling is a prime application for Orade T. Castable 820 is excellent even under severe cyclic temperature conditions up to 2100F. Castable 320 is a very high alumina, high strength castable ideally suited for lining high temperature units and high abrasive working areas. The 95% AI2O3 content assures its chemical inertness, even to strongly reducing atmospheres. Where high chemical purity and high temperatures are involved, Castable 320 is a candidate for the job. Even though they are specialized, theGlasroek Castables are easily in stalled. The forms, molds, etc. shold be treated to prevent sticking; oiling the surfaces is recommended. The amount of tempering water used is dependent upon the manner of in stallation; for ramming, the lowest amount is added, for vibration cast ing, a greater amount is needed, and, for pourable casting, the largest proportion is used. Dry mixing of the castable is recommended before any water is added. The water then should be added in such a way as to spread it out throught the mixing batch. The water should be added quickly and mixed to a homo geneous consistency. The fast setting hydraulic binder used requires that thorough mixing and emplacement all take place within 20 to 30 min utes after first introduction of water. The warmer the water and air temperature, the shorter the time available before stiffening starts. Applications Some of the uses for Glasrock Castables include: Aircraft Tooling Hearths and Furnace Walls Brazing Tools Kiln and Furnace Doors Precision Special shapes Burner Blocks and Ports Heat Treat Plates Stack Liners ' Blowpipe Diners Discharge Rings Oxygen Lance Tips Coke Oven Doors, Flues Hot Metal Troughs Car Tops Chemical Reactor Liners Incinerators Surface configuration, chemistry and temperature conditions will dictate the choice of castable. Contact your GPI representative for assistance in selection. 628 ?5 02263