描述

Pmma注射材料

PMMA塑料材料

优良的透明度和优异的耐老化性

PMMA具有重量轻、成本低、易于成型的优点

Pmma注射材料

产品详细信息

pmma注塑材料

注塑机选择

对pmma英寸注塑机没有特殊要求。由于其高熔体粘度，需要更深的螺旋槽和更大直径的喷嘴。如果产品的强度较高，则应使用长径比较大的螺钉进行低温塑化。此外，PMM必须使用干燥料斗储存材料

清洁材料管、螺钉和附件。为了防止原材料污染和旧材料或杂质进入螺杆和附件的凹槽中（例如，螺杆末端的鱼雷、溢流止动环将包含先前加工的残留物），尤其是存在热稳定性差的树脂，

，在使用前和机器停止后，应使用螺丝清洁剂清洁零件，以避免附着任何杂质。当乳液没有螺钉清洁时，可以使用树脂（如PE PS）清洁螺钉，或者当温度降至220E时，可以使用PMM二次材料清洁螺钉

由于PMM塑料的流动性差，会产生强烈的摩擦，因此可以清洁材料管道。临时停机时，为了防止原料处于高温，较低的停留时间较长，导致溶液下降。干燥器和物料管的温度应降至240℃以下（如果时间较长，温度应降至100℃以下，重新生产时温度升高）

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Pmma Injection Material

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PMMA Plastic Material
Excellent transparency and outstanding aging resistance
PMMA has the advantages of light weight, low cost and easy molding.

Pmma Injection Material

Product Details

pmma injection material

Injection molding machine selection

There is no special requirement for PMMA inch injection molding machine. Because of its high melt viscosity, a deeper screw groove and a larger diameter nozzle are required

hole. If the strength of the product is higher, a screw with a larger length to diameter ratio should be used for low-temperature plasticization. In addition, PMM must

Use a dry hopper to store materials.

Cleaning of material pipe, screw and accessories. To prevent raw material contamination and old materials or impurities in the recesses of the screw and accessories

(For example, the torpedo at the end of the screw, the overflow stop ring will contain the residue from the previous processing), especially the presence of resin with poor thermal stability,

Therefore, the screw cleaner should be used to clean the parts before use and after the machine is stopped, so that no impurities are attached. When there is no screw cleaning

For lotion, the screw can be cleaned with resin such as PE PS, or it can be cleaned with PMM secondary material when the temperature is lowered to 220E.

Because the poor fluidity of PMM plastic will produce strong friction, the material pipe can be cleaned. When temporarily shutting down, in order to prevent the raw material from being at high temperature

The lower residence time is long, causing the solution to drop. The temperature of the dryer and the material pipe should be lowered below 240C (if the time is longer, the temperature should be lowered to

Below 100C, the temperature rises when re-production).

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