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闃荤噧PBT B4406G4|宸存柉澶珅鍔犵簴20%
闃荤噧PBT B4406G4|宸存柉澶珅鍔犵簴20%
鐢�(ch菐n)鍝佸児(ji脿)鏍硷細锟�28
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    闃荤噧PBT B4406G4|宸存柉澶珅鍔犵簴20%

    闃荤噧PBT B4406G4|宸存柉澶珅鍔犵簴20%


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    PBT鏄� 鍫�(ji膩n)闊岀殑宸ョ▼鐔卞鏉愭枡涔嬩竴锛屽畠鏄崐绲�(ji茅)鏅舵潗鏂欙紝鏈夐潪甯稿ソ鐨勫寲瀛�(xu茅)绌�(w臎n)瀹氭€�銆佹(j墨)姊板挤(qi谩ng)搴�銆侀浕绲曠罚鐗规€у拰鐔辩┅(w臎n)瀹氭€�銆傞€欎簺鏉愭枡鍦ㄥ緢寤g殑鐠�(hu谩n)澧冩浠朵笅閮芥湁寰堝ソ鐨勭┅(w臎n)瀹氭€с€�PBT鍚告繒鐗规€у緢寮�銆傞潪澧炲挤(qi谩ng)鍨�PBT鐨勫嫉鍔涘挤(qi谩ng)搴︾偤50MPa锛岀幓鐠冩坊鍔犲姂鍨嬬殑PBT寮靛姏寮�(qi谩ng)搴︾偤170MPa銆傜幓鐠冩坊鍔犲姂閬�(gu貌)澶氬皣灏�(d菐o)鑷存潗鏂欒畩鑴�銆�PBT鐨勭祼(ji茅)鏅跺緢杩呴€燂紝閫欏皣灏�(d菐o)鑷村洜鍐峰嵒涓嶅潎鍕昏€岄€犳垚褰庢洸璁婂舰銆傚皪(du矛)浜庢湁鐜荤拑娣诲姞鍔戦鍨嬬殑鏉愭枡锛屾祦绋嬫柟鍚戠殑鏀剁府鐜囧彲浠ユ笡灏�锛屼絾鑸囨祦绋嬪瀭鐩存柟鍚戠殑鏀剁府鐜囧熀鏈笂鍜屾櫘閫氭潗鏂欐矑鏈夊崁(q奴)鍒ャ€備竴鑸潗鏂欐敹绺巼鍦�1.5%~2.8%涔嬮枔銆傚惈30%鐜荤拑娣诲姞鍔戠殑鏉愭枡鏀剁府0.3%~1.6%涔嬮枔銆傜啍榛�(di菐n)锛�225鈩冿級鍜岄珮婧畩褰㈡韩搴﹂兘姣�PET鏉愭枡瑕佷綆銆傜董鍗¤粺鍖栨韩搴﹀ぇ绱勭偤170鈩�銆傜幓鐠冨寲杞�(zhu菐n)鎻涙韩搴︼紙glass trasitio temperature锛夊湪22鈩冨埌43鈩冧箣闁�銆傜敱浜�PBT鐨勭祼(ji茅)鏅堕€熷害寰堥珮锛屽洜姝ゅ畠鐨勭矘鎬у緢浣�锛屽浠跺姞宸ョ殑鍛ㄦ湡鏅�(sh铆)闁撲竴鑸篃杓冧綆銆�

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    宸ヨ棟姊濅欢

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    Injection molding problem poly (butylene terephthalate)(PBT) is a general engineering plastic. The melting point of PBT is 225 ~ 235 掳C, and the crystallinity of PBT is up to 40% . The viscosity of PBT MELT is less affected by temperature than shear stress, so the effect of injection pressure on the melt fluidity of PBT is obvious in injection molding. PBT has good fluidity and low viscosity in the melting state, which is next to nylon. Anisotropy of PBT molded parts. POLYBUTYLENE terephthalate (PBT) is easily degraded under high temperature in water. When choosing screw injection molding machine for injection molding machine. The following points should be considered. 1 the material consumption of the product should be controlled at 30% ~ 80% of the rated injection quantity of the injection molding machine. It is not suitable to produce small products with large injection molding machine. The three-stage progressive screw should be used, the ratio of length to diameter is 15 ~ 20, and the compression ratio is 2.5 ~ 3.0. Self-locking nozzle shall be used with a heating and temperature control device. When molding flame-retardant PBT, the relevant parts of injection molding machine should be treated with anticorrosion.


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