催眠
发表于 2025-3-26 21:28:41
Rotational Molding,xially in a heating chamber. To obtain this mold rotation in two planes perpendicular to each other, the spindle is turned on a primary axis, while the molds are rotated on a secondary axis (Fig. 14–1)..Rotational molding (also popularly known as rotomolding) is best suited for large, hollow product
打击
发表于 2025-3-27 03:39:22
Calendering,hem and passing them through nips of a series of cooperating rolls, into a sheet of specified thickness and width. This web may be polished or embossed, as required, and may be of either a rigid or a flexible character, with the “hand” controlled by the formulation and the process.
ANNUL
发表于 2025-3-27 08:58:51
Vinyl Dispersions,astisol may range from a pourable liquid to a paste, depending on the formulation. When heated to about 150 to 170°C (302–338°F), the dispersion turns into a homogeneous hot melt. When the hot melt is cooled to around room temperature (25°C, 77°F), it becomes a tough vinyl product..Most vinyl applic
Finasteride
发表于 2025-3-27 10:04:24
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EPT
发表于 2025-3-27 17:15:35
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Creditee
发表于 2025-3-27 20:18:23
Cellular Plastics,lastic or thermoset, can be made into a cellular or foamed form with the resulting products having densities ranging from 60 pounds per cubic foot (pcf) all the way down to 0.1 pcf..Basically, cellular plastics can have either of two structural configurations: (a) the closed-cell type, in which each
腐败
发表于 2025-3-27 23:36:19
Rotational Molding,s, modular bathrooms, telephone booths, boat hulls, garbage cans, light globes, ice buckets, appliance housings, and toys (Fig. 14–2). The technique is applicable to most thermoplastics but is most widely used with polyethylene..Rotational molding offers a number of advantages:
连锁
发表于 2025-3-28 05:00:16
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责难
发表于 2025-3-28 10:20:21
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jagged
发表于 2025-3-28 12:51:47
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