Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Powder molding

Kel-F 81 3M Co., St. Paul, Minn. greases molding powders and pellets... [Pg.394]

Plexiglas Acrjlie Plastic Molding Powder, PE-866, Rohm and Haas Co., Philadelphia, Pa. [Pg.271]

Besides appHcation as heat-resistant molding powders for electronic and other appHcations, DAIP copolymers have been proposed for optical apphcations. Lenses of high impact resistance contain 50% DAIP, 20% benzyl methacrylate, and larger amounts of CR-39 (59). A lens of refractive index 71- = 1.569 andlow dispersion can be cast from phenyl methacrylate, DAIP, and isopropyl peroxide (60). Lenses of better impact properties can be obtained by modifying DAIP with aHyl benzoate (61). [Pg.85]

To speed up the molding process, the required amount of molding powder or granules is often pressed iato a block and prewarmed before placing it ia the mold. Rapid and uniform heating is accompHshed ia a high frequency preheater essentially an iadustrial microwave oven. The prewarmed block is then transferred to the hot mold, pressed iato shape, and cured. [Pg.327]

V. Reddy, "In-Mold Powder Coating," Prod. Finish. 53(10), (July 1989). [Pg.327]

Specifications for molding powders vary widely, from a No. 8 to a No. 60 sieve product generally the coarser products are No. 12, 14, or 20 sieve material. Specifications usually prescribe a minimum of fines (below No. 100 and No. 200 sieve). Molding powders are produced with hammer mills, either of the screen type or equipped with air classifiers. [Pg.1873]

Bonechar, Vh in and under 27-40 B27 Phenol-formaldehyde molding powder. 30-40 A36... [Pg.1914]

Resol resins thermoset on heating and are used for adhesives. Novolacs require a further source of formaldehyde in the form of hexamethylenetetramine to produce molding powders. Phenolic moldings are resistant to heat, chemicals, and moisture with good electrical and heat insulation qualities. Complex phenols from, e.g., cashew-nut shell liquid, are used in making brake... [Pg.278]

Density, apparent The weight in air of a unit volume of material including voids usually inherent in the material. Also used is the term bulk density that is commonly used for materials such as molding powders. [Pg.634]

Briquetting,42"45 fusion,40,41 the use of Lueite molding powder,46 and solution of the sample all reduce or eliminate Class II deviations. These operations are usually accompanied by enough dilution to reduce absorption or enhancement effects also. [Pg.174]

Wright, Granular Explosive Molding Powder , USP 3173817 (1965) CA 62, 12968 (1965) 42) E. James, Development of Plastic Bonded Explosives , Univ of Calif, Rept No UCRL-12439-T (1965) 43) B.A. Stott, Castable... [Pg.553]

French et al, Descriptions And Requirements For Explosive, Nylon Plastic-Bonded Molding Powder PBXN-1 , NAVORD Syst Command, OS11632A (1968) 51) EE. Kilmer, Heat... [Pg.553]

Anon, Explosive, Plastic-Bonded Molding Powder (PBXN-5) , MIL-E-81111A(OS> (1973) 62) W.O. Munson, Sheet Explosive Studies , AFWL TR73-19 (1973) 63) K.C. Miller,... [Pg.553]

MMA molding and extrusion polymers are used in the automotive industry for control dials, knobs, instrument covers, directional light covers, and tailgate lenses. The last two are probably the largest application of MMA molding powders. [Pg.290]

Uses Plasticizer for cellulose acetate, nitrocellulose, resins, rubber, elastomers ingredient in lacquers coating agents safety glass insect repellant molding powders perfumes. [Pg.494]

Methyl methacrylate is polymerized to poly(methyl methacrylate), which is used in cast and extruded sheet (32%), surface coatings (24%), molding powder and resins (15%), impact modifiers (13%), and emulsion polymers... [Pg.230]

Which would be more apt to deteriorate in the presence of moisture (a) Lexan molding powder or (b) Lexan sheet ... [Pg.133]

PTFE is produced by the free radical polymerization process. While it has outstanding thermal and corrosive resistance, it is a marginal engineering material because it is not easily machinable. PTFE has low tensile strength, resistance to wear, and low creep resistance. Molding powders are processed by press and sinter methods used in powder metallurgy. It can also be extruded using ram extruder techniques. [Pg.190]

Explosive Composition PBXN-5. It consists of HMX 95 Viton (vinylidene fluoride hexa-fluoropropylene copolymer) 5%, and has a rate of deton of 8760m/sec at density 1.82g/cc. Its military requirements are given in Specification MIL-E-81111A, Explosive, Plastic-Bonded Molding Powder (Feb 1973)... [Pg.275]

Explosive, Plastic-Bonded Molding Powder (PBXN-5) PBXN-5 MIL-E-81111A Feb 1973... [Pg.358]

See other pages where Powder molding is mentioned: [Pg.746]    [Pg.1041]    [Pg.378]    [Pg.265]    [Pg.268]    [Pg.269]    [Pg.270]    [Pg.321]    [Pg.308]    [Pg.1873]    [Pg.278]    [Pg.280]    [Pg.347]    [Pg.421]    [Pg.201]    [Pg.348]    [Pg.542]    [Pg.552]    [Pg.301]    [Pg.302]    [Pg.67]    [Pg.595]    [Pg.740]    [Pg.198]    [Pg.563]    [Pg.579]    [Pg.307]    [Pg.158]    [Pg.296]    [Pg.346]   
See also in sourсe #XX -- [ Pg.59 ]

See also in sourсe #XX -- [ Pg.523 ]

See also in sourсe #XX -- [ Pg.228 ]



SEARCH



Mold powder

© 2024 chempedia.info