Maupangiri Osankhira a PTFE High-Temperature Tepi Yowongoleredwa & Anti-Stick Application of Injection Molding Machines

Jiangsu Aokai New Materials, katswiri wopanga PTFE ndi zinthu za fluoroplastic, amagawana njira zosankhidwa za tepi ya PTFE yotentha kwambiri pobowola ndi zotsutsana ndi ndodo pazida zomangira jakisoni.

I. Kusankha Motengera Kutentha: Yang'anani kwambiri Kukaniza Kutentha kwa Zomatira ndi Gawo Lapansi

Tepi ya PTFE imakhala ndi magawo awiri: gawo lapansi (nthawi zambiri nsalu ya fiberglass yokhala ndi PTFE) ndi zomatira kumbuyo. Zomatira zosanjikiza nthawi zambiri zimakhala zolepheretsa ntchito.

1. Kutentha kosalekeza kogwira ntchito ≤ 260 ° C (Mapulasitiki ambiri & mapulasitiki ainjiniya pang'ono)

Zida zogwirira ntchito: PE, PP, PS, ABS, PVC yofewa, EVA, komanso PA, PBT ndi zipangizo zina zomwe zimakonzedwa pamtunda wotsika. Kusankhidwa kovomerezeka: Tepi yokhazikika ya fiberglass yolimbitsa magalasi a PTFE yokhala ndi zomatira za silikoni (PSA). Makulidwe ake: 0.13 mm kapena 0.18 mm, kusanja kufananizidwa ndi kulimba kwa ntchito. Mfundo zazikuluzikulu: Uwu ndiye mulingo woyenera kwambiri wogwirira ntchito wa tepi ya PTFE, wokhala ndi kukhazikika kwamankhwala komanso magwiridwe antchito.

2. Kutentha kosalekeza kogwira ntchito 260°C ~ 300°C (Mapulasitiki apamwamba aukadaulo)

Zida zomwe zingagwiritsidwe ntchito: PC, PA66, POM, PET, PPA yotentha kwambiri, PPO yosinthidwa ndi nkhungu zina za jekeseni wotentha kwambiri. Kusankhidwa kovomerezeka: Tepi ya Fiberglass PTFE yopangidwa ndi zomatira za silicone zosagwira kutentha kwambiri. Zomatira wamba za silicone zimakalamba mwachangu, zimataya mphamvu ndikusiya zotsalira pansi pa kutentha uku. Makulidwe ake: 0.18 mm kapena 0.25 mm. Zomatira zokulirapo komanso zigawo za gawo lapansi zimapereka chitetezo chabwinoko chamafuta komanso kukana kuvala. Chitsimikizo chofunikira: Tchulani makina omatira omwe ali ndi kutentha kwanthawi yayitali kuposa 280 ° C kwa ogulitsa, ndikuwonetsetsa ngati zomatirazo zitha kuyipitsa nkhungu pakutentha kwakukulu.

3. Kutentha kwambiri pompopompo 300 ° C ~ 400 ° C (Mapulasitiki apadera otentha kwambiri kapena malo otentha am'deralo)

Zipangizo zomwe zingagwiritsidwe ntchito: PEEK, LCP, PPS, PEI, makamaka zopezeka pafupi ndi nozzles zotentha zothamanga ndi mitu yotulutsa pang'ono. Chenjezo losankhira: Palibe zomatira zodalirika zolimbana ndi kupanikizika zomwe zimatha kupirira kutentha uku. Tepi iliyonse yomatira ya PTFE idzalephera nthawi yomweyo, kutulutsa mpweya ndikuyipitsa zinthu zomalizidwa. Njira zina:

1. Nsalu ya fiberglass ya PTFE yopanda zomatira, yokhazikika mwamakina pogwiritsa ntchito mafelemu omangira nkhungu, mizere kapena zomatira zotentha kwambiri (zomatira zomwe sizimamva kupanikizika monga zomatira za silikoni).

2. Tepi ya filimu ya PFA yopangidwa ndi fusible, yomangika pa nkhungu kudzera pa kuwotcherera mpweya wotentha. Imapirira mosalekeza 260 ° C ndi kuwonekera kwakanthawi kochepa kwa 300 ° C, komabe sikungasinthidwe mosinthika ngati tepi yodzimatira. Malingaliro ena okometsedwa: Pazifukwa zotentha kwambiri, nkhungu PTFE zokutira kapena nano ceramic high-temperature zosagwira zokutira ndizovomerezeka.

II. Zosankha Zotengera Katundu: Kulimbana ndi Kuvala Kwamatch, Kukaniza Kuwonongeka ndi Zofunikira Zotulutsa

Thupi ndi mankhwala katundu wa pulasitiki wosungunuka kudziwa chofunika padziko magwiridwe antchito ndi structural mphamvu ya tepi.

1. Zida zolimba kwambiri / zokonda nkhungu

Zoyimira: EVA, zomatira zotentha zosungunuka, TPE, TPU, masukulu ena osinthidwa a PP. Mfundo zazikuluzikulu zosankhidwa: Sankhani tepi yotulutsidwa kwambiri yokhala ndi PTFE yayikulu komanso zokutira wandiweyani. Ikani patsogolo tepi ya filimu ya PTFE (yopanda kulimbitsa magalasi a fiberglass, mphamvu yocheperako, yoyenera madera osapanikizika kwambiri) kapena tepi ya PTFE yopangidwa ndi fiberglass. Zowoneka pafupi ndi PTFE yoyera imapereka magwiridwe antchito apamwamba kwambiri odana ndi ndodo.

2. Magalasi CHIKWANGWANI / mchere wodzaza zida zolimbitsa

Zida zoyimilira: Galasi fiber yolimbitsa PA, PP, PBT, calcium carbonate yodzaza PP. Valani makina: Kusungunula koyenda kumachita ngati sandpaper yamadzimadzi, kuthamangitsa zokutira wamba za PTFE; gawo lapansi lowonekera la fiberglass lidzayambitsa zolakwika zomatira. Zosankha zazikulu:

1. Kukula patsogolo: Sankhani tepi yosamva zolemetsa ya 0.25 mm kapena kupitilira apo.

2. Kulimbitsa: Sankhani zinthu zokhala ndi zokutira zamitundu ingapo za PTFE kapena mankhwala owumitsa pamwamba m'malo mwa zokutira zoonda limodzi.

3. Njira yosinthira: Muzigwiritsa ntchito matepi ngati zogwiritsidwa ntchito nthawi zonse, ndipo khazikitsani zoyendera nthawi ndi nthawi ndikusintha zina m'malo motsatira moyo wanthawi zonse.

3. Zida zokhala ndi zowonjezera zowononga kapena zowotcha

Zida zoyimilira: PVC yolimba (imatulutsa HCl), mankhwala oletsa moto (brominated, phosphorous-based flame retardant precipitation), fluorinated processing aids. Njira yolephereka: Madontho amawononga zomatira kapena kulowa gawo lapansi, zomwe zimapangitsa kuti tepi ikhale matuza ndi delamination.

1. Kukana kwa mankhwala kumamatira: Tsimikizirani kuti zomatira za silikoni zili ndi inertness yokwanira motsutsana ndi ma acid ofooka, mapulasitiki ndi ma precipitates ena.

2. Gawo laling'ono: Sankhani tepi yokhala ndi magalasi olimba a fiberglass ndi PTFE yosindikizidwa bwino kuti musalowetse mpweya / madzi omwe amawononga zomatira kumbuyo.

3. Kukhathamiritsa kwa mpweya wabwino: Phatikizani kutulutsa vacuum ya nkhungu kapena mipope yowonjezera ngati kuli kofunikira kuti muchepetse kuchulukira kwa madzi pa tepi kuchokera komwe kumachokera.

4. Zida zosasunthika

Zochitika zofananira: Kupanga jakisoni wamagetsi amagetsi, kutulutsa filimu ya PP yothamanga kwambiri. Kusankhidwa kovomerezeka: Tepi yotsutsa-malo a PTFE (tepi yakuda ya PTFE yokutidwa ndi conductive mpweya wakuda kapena wosanjikiza wapadera wa anti-static) kuti mupewe kutengeka kwa fumbi ndi kuwopsa kwa electrostatic discharge.

III. Kusintha Kutengera Zida ndi Kagwiritsidwe Ntchito

1. Jekeseni nkhungu kugwetsa

Mabowo, ma slider ndi zonyamulira: Tepi nthawi zambiri imagwiritsidwa ntchito pomatira nkhungu. Tepi yopyapyala ya 0.13 mm yokhala ndi kufalikira kwabwino imafunika kuti igwirizane ndi malo opindika ovuta. Pewani zikhomo za ejector ndi mipata yotulutsa mpweya; samalani magawo olondola chifukwa makulidwe a tepi asintha kulekerera kwazinthu. Ma mbale othamanga otentha ndi malangizo a nozzle: Kutentha kwambiri kumagwiritsidwa ntchito pano; Nsalu ya PTFE yokhayo yokhazikika pamakina yopanda zomatira ingagwiritsidwe ntchito kupewa kung'anima kumamatira. Tepi yodzimatira ndiyoletsedwa kwambiri.

2. Extruders ndi kumtunda zida

Milomo / malo ogulitsa Extrusion: Pewani kusungunuka kwamadzi ndi zingwe padoko lotulutsa. Sankhani tepi yowonda kwambiri (0.08 mm–0.13 mm) yotulutsa kwambiri kuti musasinthe kukula kwake. Manga tepiyo kuyambira kutsogolo mpaka kumapeto kwa chotulukapo kuti muchepetse kulowa m'malo olumikizana. Pelletizer template: Yowonekera molunjika ku kutentha kwambiri kusungunuka ndi ma abrasion fiber fiber. Tepi yolemetsa ya 0.25 mm kapena pamwamba ndiyofunikira, ndipo imayendetsedwa ngati yogwiritsidwa ntchito nthawi zonse. Makanema otulutsa / ma traction atolankhani: Anti-stick komanso yosavuta kuyeretsa. Tepi ya PTFE yokhala ndi silicone imatha kukulungidwa mozungulira, kapena manja a PTFE opanda zomatira atha kutengedwa. Tsimikizirani kutentha kwa tepiyo kumagwirizana ndi kutentha kwapamwamba ngati kutentha kumakhudzidwa.

Zomwe zili pamwambapa zaukadaulo zimaperekedwa ndi Malingaliro a kampani Jiangsu Aokai New Materials Technology Co., Ltd.

Ngati mukufuna kudziwa mwatsatanetsatane, zochitika ntchito ndi mayankho makonda athu zonse katundu katundu kuphatikizapo PTFE mkulu kutentha nsalu, PTFE mkulu-kutentha zomatira tepi, PTFE mkulu-kutentha mauna lamba, msokonezo kutentha atolankhani lamba, single-mbali PTFE nsalu, mkulu kutentha zosagwira magalasi, kukhudzana ndi magalasi zosagwira magalasi, chonde kukhudzana ndi magalasi zosagwira magalasi conveyor.

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