做TPR橡皮擦,擠出溫度不知道怎么調(diào)控,有氣泡形成和兩邊輕微開裂怎么解決?
有氣泡以及兩邊輕微開裂,可能是造粒和擠出的溫度不夠高,造粒的時(shí)候沒有去掉水分和保證塑化效果。兩邊開裂也有可能是外潤(rùn)滑不夠,擠出的時(shí)候和模具的阻力大,導(dǎo)致邊緣出料慢,就撕裂了。 已經(jīng)做好的料子,把真空口前面的溫度調(diào)高,把真空抽到0.8,看是不是氣泡會(huì)消失。關(guān)于兩邊撕裂的問題,如果提高溫度還不行,可以在造粒好的料子里面外拌一些硬脂酸作為外潤(rùn)滑劑,可能會(huì)解決這個(gè)問題;另一個(gè)辦法是把模具兩側(cè)的溫度升高到比模具上下溫度高10-15℃,這樣兩邊出料速度會(huì)增加,就不容易撕裂了。
| 產(chǎn)品說明Product description | ||||
| ·EN9508E是一款以PP 和EPDM為主基材的高性能彈性體,易加工,耐黃變,耐化學(xué)溶劑性能非常出色。 ·EN9508E is a kind of high performance elastomer material based on PP and EPDM as main material which has excellent yellowing resistance and chemical solvent resistance properties.Also it is easily processed. | ||||
| 關(guān)鍵特性Key characteristic | ||||
| 1.表面啞,手感細(xì)膩柔軟Dumb surface, exquisite and soft touch. 2.可粘接PP,強(qiáng)度非常高Very high bonding strength,adhesive materials:PP. 3.成型快、不粘模具Rapid molding and non-stick mold. 4 抗老化及耐腐蝕性優(yōu)良 Anti-Aging and good corrosion resistance. | ||||
| 功能Function | ||||
| 產(chǎn)品應(yīng)用 Main application | 1 汽車用品 Automotive products | 3.擠出條Extrusion strip | ||
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| 2 運(yùn)動(dòng)器材Sports equipment | 4玩具產(chǎn)品Toy products | ||
| 加工方法Processing method | 注塑、擠出、吹塑成型 Injection molding, extrusion and blow molding | |||
| 環(huán)保認(rèn)證 Environmental certification | ROHS | REACH | EN71-3 | |
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| PAHS | ASTM-F963 | Phthalate | |
| 顏色Color | 本色 Natural | |||
| 氣味Smell | 少許樹脂味A little resin smell | |||
| 外型Appearance | 圓球形小顆粒Cylindrical particle,about 3mm×1.5mm | |||
| 儲(chǔ)藏期Storage period | 常溫下通風(fēng)干燥,24個(gè)月Ventilated dry at normal temperature,about 24 months | |||
| 包裝方式Packaging method | 25公斤/袋 25kg/bag | |||
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