亚博网app

2
1
1
Previous
Next

ABOUT US

Nanjing Juli Chemical Machinery Co., Ltd
  • 2005

    /Year

    Founded in 2005

  • 1600

    Million yuan

    Registered capital of 16 million yuan

  • 20000

    Covers an area of more than 20,000 square meters

Nanjing Juli Chemical Machinery Co., Ltd. is a company specializing in the development of plastic polymer compounding and modifying equipment with co-rotating twin-screw extruder as the core, as well as the technical development of related processes and engineering fields, as well as the scientific research, development and production of auxiliary equipment Manufacturer company. There are many senior engineers, senior experts and experienced on-site commissioning engineers who have been engaged in research and production in the twin-screw field (formerly Coperion Keya, Ganhua Machinery, South Rubber and Plastics) for many years. The registered capital is 16 million yuan.

Nanjing Juli Chemical Machinery Co., Ltd

Top Ten Chinese Twin Screw Extruder Companies

Top Ten Enterprises in China's Modified Plastics Industry

PROJECTS

南通环洋新型建材有限公司
pro

Twin Screw Extruder

企业理念

Sheet Extruder

企业理念

Single Screw Extruder

pro

Degradable Material Extrusion

企业理念

Twin Screw Underwater Pelletizing

企业理念

Screw Elements

PROJECTS

Nanjing Juli Chemical Machinery Co., Ltd

Establish a brand and enter the world

NEWS CENTER

Nanjing Juli Chemical Machinery Co., Ltd

About the structure process analysis of twin screw extruder

Next,theeditorofJuliwillgiveyouabriefintroductionaboutthestructureandprocessanalysisofthetwin-screwextruder:  1.Plasticizingarea  Theplasticizingzoneistoheattheinjectedresintoformamoltenstate.Theconditionssuchastheheatingtemperatureandtimeinthisregionarenotparticularlylimitedaslongasthefluoropolymerhavingaspecificunstableterminalgroupisinamoltenstate.Inthelatterhalfoftheplasticizationzone,itispreferabletoprovidedevolatilizationholestoremoveatleastapartofvolatilecomponentsundernormalpressureorreducedpressure.Then,thepartialpressureofvolatilecomponentsinthestabilizationregiondescribedlatercanbereduced,andthestabilizationtreatmentcanbeeffectivelypromoted.  2.Stabilizationtreatmentarea  ThestabilizationzoneistomeltandkneadandconvertspecificunstableendgroupsintoaCF2H.Thestabilizationtreatmentareaispreferablyformedbyusingakneadingdiscwithoutpropulsion.Here,melt-kneadingiscarriedoutinthepresenceofwaterandoxygen.Itcandirectlyintroducepurewater,ionexchangewater,etc.orwatervapor;itcanalsobeaccompaniedbythefluoropolymertobetreated.Theamountofwateraddedisthesameasthenumberofunstableterminalgroups,butitisactuallypreferabletosupplyanexcessamount,forexample,atleast10timestheamount.Thepressureinthestabilizationzoneisgenerallycontrolledat0.2~10MPa,andthesettemperatureiscontrolledat280~430℃.Thetimetomaintainpressurizationisusuallylessthan10minutes.  Accordingtotheprincipleoftheextrudertoremoveunstableendgroups,themelt-kneadinginthestabilizationzoneispreferablycarriedoutinthepresenceofoxygeninadditiontothepresenceofwater.Airisusuallyusedintermsofeconomy.Inthepresenceofoxygen,thecarbongeneratedbythemoltenkneadedproductisalsoburned,whichcaninhibitthecoloringofthefluoropolymer.Oxygenisaninertgastotheunstableterminalgroupscarboxylandfluorinatedacylgroups.Duringtheprocessofmeltingandkneading,itcanimprovethedevolatilizationefficiencyofvolatilecomponents.  Three,devolatilizationarea  Thedevolatilizationzoneremoveshigh-temperaturevolatilecomponentsgeneratedbythedecompositionofspecificunstableterminalgroups.Theabsolutepressurevariesaccordingtothemoltenstateofthemoltenkneadedproductandtheoperatingconditionsofthescrewofthekneader.Generally,thepressureisreducedtothepointwherethemoltenkneadedproductdoesnotintrudeintotheexhaustnozzle.Itcanbe0.01to0.1MPa,andthetemperatureiscontrolledat25O~Claughataround.  Inthepresenceofacertainamountofwaterandoxygen,FEPextrudingthroughatwin-screwextrudercaneffectivelyremovetheunstableterminalgroupsofFEP.SimplifiestheprocessingprocessofFEPunstableendgroupsandsavesproductioncosts.Whentheobtainedstabilizedpolymerismelt-formed,nobubblesorvoidsaregeneratedinthefinishedproduct,anditisnotcolored. Formoreinformationabouttwinscrewextruders,pleasevisit//www.yuma-tech.com/ About the structure process analysis of twin screw extruder

CONTACT INFORMATION

No. 77 Tangtong Road / No. 9 Boguang Road, Hushu Town, Jiangning District, Nanjing City

OFFICIAL ACCOUNTS

Welcome to follow us

er

ONLINE MESSAGE

Username used for comment:
客户留言
Description:
验证码

Copyright © 2020 Nanjing Juli Chemical Machinery Co., Ltd. All Rights Reserved. 苏ICP备13041019号-2  Powered by www.300.cn

亚博游戏官网必威体育app手机版官网下载亚博体育下载app下载乐投娱乐letou