日韩乱码人妻无码系列中文字幕,女人和公猪交内射,亚洲av精品一区二区三区,中文字幕在线亚洲精品

濟(jì)南精美塑料包裝廠為您提供塑料袋、方便袋、塑料袋、食品塑料袋,相關(guān)信息發(fā)布和資訊展示,敬請關(guān)注!

濟(jì)南歷下精美塑料包裝廠

服務(wù)熱線: 18764138233

熱門:
行業(yè)動(dòng)態(tài)

濟(jì)南塑料袋:pe塑料袋的特點(diǎn)是什么?

來源:http://m.lusp7.com/ 日期:2022-10-14

pe塑料袋在我們的生活中經(jīng)常使用。它們分為許多不同的類型,適用于不同的領(lǐng)域。在我們的日常生活中,我們經(jīng)常使用PE塑料袋。pe是聚乙烯的簡稱,聚乙烯是由乙烯聚合而成的熱塑性樹脂。它具有許多優(yōu)點(diǎn),可用于服裝、箱包、電子產(chǎn)品等包裝。這主要是由體育的突出特點(diǎn)決定的。PE塑料袋的特點(diǎn)是什么?下面是PE塑料袋廠家的介紹。
Pe plastic bags are often used in our life. They are divided into many different types and are applicable to different fields. In our daily life, we often use PE plastic bags. Pe is the abbreviation of polyethylene, which is a thermoplastic resin polymerized from ethylene. It has many advantages, can be used for clothing, bags, electronic products and other packaging. This is mainly determined by the outstanding characteristics of sports. What are the characteristics of PE plastic bags? The following is the introduction of PE plastic bag manufacturers.
 
優(yōu)良的耐腐蝕性和電氣絕緣(特別是高頻絕緣)。可采用氯化、化學(xué)交聯(lián)、輻射交聯(lián)等方法改性。低壓聚乙烯具有熔點(diǎn)高、硬度高、強(qiáng)度大、吸水率低、電性能好、抗輻*性能好等特點(diǎn);高壓聚乙烯具有良好的柔韌性、伸長率、沖擊強(qiáng)度和滲透性;UHMWPE具有較高的沖擊強(qiáng)度、抗疲*性能和耐磨性。低壓聚乙烯適用于制造耐腐蝕零件和絕緣零件;高壓聚乙烯適用于制膜;高分子量聚乙烯(UHMWPE)適用于減震、耐磨、傳動(dòng)部件。
 
Excellent corrosion resistance and electrical insulation (especially high-frequency insulation). It can be modified by chlorination, chemical crosslinking, radiation crosslinking, etc. Low pressure polyethylene has the characteristics of high melting point, high hardness, high strength, low water absorption, good electrical properties, and good radiation resistance; High pressure polyethylene has good flexibility, elongation, impact strength and permeability; UHMWPE has high impact strength, fatigue resistance and wear resistance. Low pressure polyethylene is suitable for manufacturing corrosion resistant parts and insulating parts; High pressure polyethylene is suitable for film making; High molecular weight polyethylene (UHMWPE) is suitable for shock absorption, wear resistance and transmission parts.

濟(jì)南塑料袋
 
造型特點(diǎn):1。結(jié)晶物料吸濕性小,不需要充分干燥,流動(dòng)性好,對壓力敏銳。適用于成型時(shí)采用高壓注射,料溫均勻,充型速度快,保壓充分。不宜采用直澆口,以防不均勻收縮,增加內(nèi)應(yīng)力。注意澆口位置的選擇,防止縮孔變形。2. 收縮幅度和收縮值大,方向性明顯,易變形和翹曲。冷卻速度要慢,模具要設(shè)有冷料袋,還有冷卻系統(tǒng)。3.加熱時(shí)間不宜過長,否則會(huì)發(fā)生分解。4. 當(dāng)軟塑件有較淺的側(cè)槽時(shí),可以用力脫模。5. 熔體可能斷裂,不建議與溶劑接觸,防止開裂。
 
Modeling features: 1. Crystalline material has low moisture absorption, does not need to be fully dried, has good fluidity and is sensitive to pressure. It is suitable for high-pressure injection during molding, with uniform material temperature, fast filling speed and sufficient pressure holding. The straight gate should not be used to prevent uneven shrinkage and increase internal stress. Pay attention to the selection of gate location to prevent shrinkage deformation. 2. Large shrinkage amplitude and value, obvious directivity, easy to deform and warp. The cooling speed should be slow. The mold should be equipped with a cold material bag and a cooling system. 3. The heating time should not be too long, or decomposition will occur. 4. When the soft plastic parts have shallow side grooves, force demoulding is allowed. 5. The melt may break, so it is not recommended to contact with the solvent to prevent cracking.

少妇高潮毛片免费看a片| 色综合久久无码五十路人妻| 超薄丝袜足j好爽在线| 国产精品9999久久久久| 97人人添人澡人人爽超碰| 100国产精品人妻无码| 夜夜爽日日澡人人添| 日韩乱码人妻无码中文字幕| A级毛片无码免费真人久久| 欧美性大战久久久久久久| 亚洲国产欧美在线人成| 高清av电影| 国产强被迫伦姧在线观看无码| 久久久久黑人强伦姧人妻| 天下第一社区视频www国语| 久久久久免费毛a片免费| 国产大片b站观看| 99偷拍视频精品一区二区| 极品美女扒开粉嫩小泬| 无码人妻精品一区二区三18禁| 久久国产精品无码一区| 欧美性大战xxxxx久久久| 亚洲av无码久久精品狠狠爱浪潮 | 国产精品日本一区二区在线播放| 精品少妇无码av无码专区| 88国产精品视频一区二区三区| 法国性xxxx精品hd| 无码视频一区二区三区 | 12裸体自慰免费观看网站| 日韩乱码人妻无码中文字幕| 久久久久99精品成人片直播| 亚洲国产精品无码久久九九大片| 精品一区二区免费视频蜜桃网| jizz国产精品| 丰满少妇被猛烈进入a片| 动漫精品一区二区三区在线观看| 无码国精品一区二区免费| 24adc年龄确认18周岁进入| japanese50mature日本亂倫| 中文字幕无码毛片免费看 | a级毛片毛片免费观看丝瓜|