欧美日韩国产一二三四五区,国产区在线观看成人精品,91亚洲精品国产嫩草,国产丰满的富婆自拍对白,久久精品偷拍视频观看,国产av一区二区中文字幕,久久国产超碰女女av,久久不卡国产一区二区,欧美中文字幕一二三四区,亚洲欧美熟妇欲乱又伦

<delect id="d07zl"></delect>

    1. <rt id="d07zl"></rt>
        <rt id="d07zl"></rt>
        Welcome to Shenzhen Zhongyuan Plastic Co., Ltd!

        News



        Tel:(0755)27151698
        Fax:(0755)27150611
        Mailbox:szzyzcl@163.com / szzy@szzy99.com
        Add:Building A1 and A2, No.1 Industrial Zone, yuliu property company, Gongming town, Bao'an District, Shenzhen
        Industry information

        當(dāng)前位置:

        首頁(yè) News Industry information

        Plastic shell raw materials

        Release time:2021-09-13

        Thermoplastic made of polycarbonate and ABS alloy, which combines the excellent characteristics of the two materials, the formability of ABS materials and the mechanical properties, impact strength, temperature resistance and UV resistance of PC, can be widely used in automotive internal parts, office equipment, communication equipment, household appliances and lighting equipment.


        Typical applications: computer and business machine housings, electrical equipment, lawn gardening machines, auto parts dashboard, interior decoration and wheel housing.


        Injection molding process conditions:
        1. Drying treatment: drying treatment must be carried out before processing. The humidity should be less than 0.04%, and the recommended drying condition is 90~110c, 2~4 hours.
        2. Melting temperature: 230~300c.
        3. Mold temperature: 50~100c.
        4. Injection pressure: depends on the plastic part.
        5. Injection speed: as high as possible.


        Chemical and physical properties: pc/abs combines the comprehensive properties of PC and ABS. For example, the processability of ABS and the excellent mechanical properties and thermal stability of PC. The ratio of the two will affect the thermal stability of pc/abs materials.


        Pc/abs blends also exhibit excellent flow characteristics. The shrinkage is about 0.5%. Pc/abs is a modified engineering plastic synthesized by mixing. PC is polycarbonate, and ABS plastic is a terpolymer of acrylonitrile (a), butadiene (b) and styrene (s). This modified plastic has better properties than pure PC and ABS, such as improving impact resistance, heat resistance and hardness.


        Characteristics of PC ABS plastic materials:
        1. The fluidity is slightly worse than hips, better than PMMA, PC, etc., and the flexibility is good.

        2. There are high impact resistance, high heat resistance, (flame retardant) fire V0, enhanced, transparent and other levels.

        3. It has good weldability with 372 plexiglass and is made of two-color plastic parts. The surface can be plated with chromium and painted.

        4. Good comprehensive performance, high impact strength, good chemical stability and good electrical performance.


        Uses: computer equipment shell, other computer parts, typewriter shell, camera, mobile phone and other commercial machine shell, electrical equipment, electronic and electrical parts, small household appliance parts, hair dryer, connector, word processor, medical equipment parts, office supplies, cosmetics containers, food tray, lawn and gardening machinery, automobile headlamp frame, tail lamp cover, instrument panel, interior decoration, wheel cover, food tray, etc.


        Processing conditions of PC ABS plastic raw materials:

        Drying temperature: 104-110 ℃

        Drying time: 3.0-4.0 hours

        Recommended injection volume: 30-80%

        Recommended maximum moisture content: 0.040%

        Barrel temperature: 60.0-80.0 ℃

        Temperature at the rear of the barrel: 249-288 ℃

        Temperature in the middle of the barrel: 254-293 ℃

        Temperature in front of barrel: 260-302c

        Nozzle temperature: 274-302c

        Processing (melt) temperature: 274-302c

        Mold temperature: 60.0-87.8 ℃

        Back pressure: 0.345-0.689 MPa

        Screw speed: 40-70 rpm

        Copyright: Shenzhen Zhongyuan Plastic Co., Ltd. | mold processing customized manufacturer. If you want to know the processing price of the factory, how much is it, and which is good, please contact us Yue ICP Bei No. 17060480
        97SE色综合一区二区二区| 日韩一区二区不卡av| 成人国产三级在线播放| 中文乱码字幕高清在线观看| 无码中文字幕日韩专区| 永久免费AV无码网站在线 | 国产三级精品福利久久| 久久精品亚洲男人的天堂| 国产精品亚洲一区二区极品| 国产精品免费自拍视频| 成人av网址免费观看| 国产精品日本一区二区在线看| 最新国产精品自拍一区| 狠狠内射| 超碰免费av在线播放| 久久精品国产亚洲av热明星| 久久人妻视频免费观看| 免费观看视频在线播放| 国产亚洲精品自在久久| 亚洲专区一区二区三区| 中文字幕乱码亚州精品一区| 免费人成视频网站在线观看不卡| 亚洲动漫精品无码AV天堂| 一区二区三区在线欧洲天堂| 欧美一区二区三区桃花| 亚洲精品午夜精品国产| 18禁黄网站禁片免费观看不卡 | 色噜噜国产精品一区二区| 亚洲欧美日韩色图在线观看| 亚洲中文字幕一区精品自拍| 成人久久精品一区二区| 调教操的好爽视频在线观看| 久青青草视频手机在线免费观看| 亚洲一区二区中文字幕| 亚洲在线一区二区三区四区| 岛国大片视频在线播放| 手机在线免费av网站| 毛片成人夫妻自拍观看| 蜜臀午夜av一二三区| 中文字幕一区二区三区日韩精品 | 男女18禁啪啪无遮挡激烈网站|