Before preform injection molding, PET grain must be dried to a moisture content of 0.05% or less, so that it can create a good non-crystalline transparent preform. PET is a hygroscopic material, if the moisture content is too high, will produce at a high temperature hydrolysis process, the PET molecular chains and thermal decomposition of acetaldehyde, reduce physical and mechanical properties, the crystallization rate of speed, when the Preform Injection, will Preform partially crystalline bleaching, affecting the quality of the product. PET is a polymer, the most important feature is its molecular weight, molecular weight is the number of uniform molecular PET molecular chains, the number of molecules of longer chain link, the better the physical properties of PET. PET is a crystalline resin, a specific gravity of about 1.4, a melting point of 245 ℃, the molding temperature between about 290 ~ 315 ℃. Usually used in the manufacture of PET plastic container grain, must pay attention to the following features: (1) molecular weight (2) acetaldehyde content (3) the content of diethylene glycol (4) a carboxyl group (5) the percentage of total polymer ( 6) Melting point (7) a glass transition point (8) the degree of crystallinity. Polyethylene terephthalate (of PET) , having the features: (1) excellent in gas barrier properties (2) pressure resistance, creep resistance (3) Impact resistance (4) transparency, surface gloss (5) itself is odorless and Paul fragrance security (6) on food hygiene, and beautiful, easy molding, has been widely used in food containers. Here are some notes for the PET preform injection molding process, for all my friend, much know-how experience, much near to the perfect production. The final result is that the bad quality &bad production of PET preform in the customer factory, which will waste the money &energy &time of all. And in order to reduce the sell cost, many manufacturers also present the general purpose injection molding machine with C type of screw &big shot weight, while they obviously ignored to bring the important notes to the customer before they make a decision focus on the PET PREFORM PRODUCTION. Q:Are you a trading company or a manufacturer?Ī:We are an Original Equipment Manufacturer so that we can provide you high quality machines in reasonable price, Welcome to visit us.Many friends would like to adopt the general purpose injection molding machie to produce the PET preform. Q:What’s your guarantee or the warranty of the quality if we buy your machines?Ī:We offer you high quality machines with 1 year guarantee and supply life-long technical support. Q:When can I get my machine after I paid?Ī:Normally production time is around 30-60days,the exactly depend on what kind of machine you order.The shipping time is based on your destination port.
#Pet preform mold how to
Q:How to install my machines when it arrives?how much the cost?Ī:We will send our engineers to your factory to install the machines and train your staff how to operate the machines.Customer pay air tickets go and back,accommodation and USD80/day/person. Japan High Speed Steel SKD51 for Valve Pin, with HRC 57-60.Īmerica Dupont Seal in Valve Pin, withstands 350 degree temperature.īeryllium Bronze(with HRC 30-32) and H13(with HRC 38-42) for NozzleĪ:We will send one year enough easy broken spare parts together with the machines,shipping together.During the warranty time,we will supply the spare parts with our cost including the delivery fees.Ī:According your machines order,we will send one or two engineers to your plant,it will take about 10 days to 25 days. Hot runner made by our own factory.You also can choose YUDO,SINO,HUSKY or other famous brand hot runner system as your choice.We have cooperation with all the hot runner system supplier. Hot runner with vavle gate system(Germany HOTSET heaters)
#Pet preform mold manual
2), Excellent hot runner system and cooling system.ģ), High quality materials and proven pet preform mould/mold design ensure long life timeĤ), Pneumatic Pin Valve strcuture without manual cut tail,reduce the labor force.ĥ), Double self-lock structure ensures mold thickness tolerance less than 0.1mmĢ), Use imported heaters,like Germany HOTSET and Italy ROTFILģ), Cavity-to-cavity control system ensure nozzle temperature fluctuates within 1oCĤ), Hot Runner Balance design ensures evenly force,uniform heating and identical preforms.ġ), Sprial Water Cooling Way on cavity enhances cooling performance.Ģ), Cooling System on neck and move neck plates enhance cooling performance.ģ), Precise Distributary Plate distributes cooling water into cavity evenly,quicken preform cooling.
#Pet preform mold professional
Glass bottle juice with pulp hot filling lineġ), More than 10 years experience in PET Mould/MoldĢ), Devote to professional packaging solutions for beverage,daily chemail, medicineġ), Core,Cavity and Neck can be interchanged.Glass Bottle Beer Filling Line Solution.
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