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
        欧美人妻一区二区蜜臀| 久久91精品国产91久久麻豆| 人妻成人免费在线视频| 亚洲中文字幕人妻诱惑| 亚洲男人天堂一区二区| 熟女少妇丰满一区二区| 成人女人性毛片免费视频| 日本在线看片免费人成视频1000| 久久久精品一区二区欧美| 狠狠90色一区二区三区| 国产裸体舞一区二区三区| 99久久久精品国产性黑人| 亚洲精品久久激情国产片| 成人一区二区免费视频| 国产成人综合精品久久| 东京热加勒比日本几大| 岛国熟女一区二区三区| 日产精品一区二区三区| 日本免费有码中文字幕| 亚洲一二三四区中文字幕| 中文字幕人妻日韩精品| 欧美成人精品免费在线| 亚洲精品综合中文字幕| 国产乱妇激情呻吟视频| 美女视频黄频大全免费| 婷婷无套内射影院| 国产女奸网站在线观看| 中文字幕有码视频熟女| 亚洲中文字幕巨乳人妻| 在线中文高清资源免费观看| 日韩欧美亚洲精品国产| 国产精品白丝在线播放| 亚洲av综合国产av| 国产精品分类在线播放| av不卡秒播在线播放| 黄色污污污网站在线观看| 99视频精品全部在线观看| 欧美黄页在线观看视频| 国产亚洲一区二区三区夜夜骚| 中文字幕一区二区三区四区久久 | 韩国精品福利一区二区三区|