Yadda Fiberglass Thermal Shrinkage Yana Shafar PTFE Tef Dimensional Stability

A Tef ɗin PTFE wanda ke raguwa, murƙushewa, ko warps yayin amfani shine gazawar filin gama gari. Tushen tushen sau da yawa yana komawa zuwa siga guda ɗaya: ƙimar rage zafin zafin fiberglass..

A lokacin PTFE sintering a 360-400 ° C da m curing a 150-200 ° C, fiberglass masana'anta yana jurewa haɓakar zafi kuma, mafi mahimmanci, raguwar da ba za a iya jurewa ba daga ragowar damuwa na saƙa. Idan ba a kawar da wannan damuwa ba kafin rufewa, ya zama ɓoyayyiyar lahani - yana sa tef ɗin ya ragu, lanƙwasa, ko lalata lokacin zafi.

Aokai PTFE yana amfani da cikakken zafin jiki na fiberglass substrates don kawar da wannan matsalar. Wannan labarin ya bayyana tushen dalilin raguwar thermal, tasirin sa a kowane mataki na sarrafawa, da kuma ainihin bayani: masana'anta da aka riga aka saita da zafi tare da <0.5% shrinkage a 400 ° C.

Tushen Tushen – Rage Damuwa daga Saƙa

Thermal shrinkage ainihin ya samo asali ne daga ragowar damuwa na ciki da aka tara yayin zanen fiber gilashi da saƙan masana'anta. Gilashin fiberglass ba tare da cikakken saitin zafi ba zai fuskanci raguwar da ba za a iya jurewa ba da zarar ya yi zafi sama da iyakar sakin damuwa (abin ban mamaki yana farawa sama da 300 ° C).

Duk wani abin da ba a kammala ba ko rashin takurawa damuwa ya zama ɓangarorin ɓoyayyiyar matsala da ke haifar da rashin kwanciyar hankali girma na tef. Wannan damuwa yana 'kulle' a cikin tsarin masana'anta yayin sakar kuma yana fitowa ne kawai lokacin zafi zuwa isasshen zafin jiki.

Tasiri A Lokacin PTFE Sintering - Matsayin Mahimmanci

PTFE sintering zafin jiki ya kai 360-400 ° C, da nisa fiye da farkon zafin jiki na fiberglass thermal shrinkage, sa wannan mataki ya zama yanke shawara factor ga girma aiki.

1. Kulle damuwa yana haifar da lahani mai ƙima

Idan an sarrafa shi a ƙarƙashin ƙarancin tashin hankali, gilashin fiberglass ɗin yana raguwa cikin yardar kaina kuma da ƙarfi, yana haifar da ƙarancin tsayi da faɗin girma. Idan an yi amfani da tashin hankali mai yawa don hana raguwa, filayen gilashin suna da ƙarfi da ƙarfi. A kusa da 380 ° C, narkakkar PTFE yana kutsawa kuma ya nannade zaruruwan da aka shimfiɗa; bayan sanyaya da siffata, latent shrinkage halin da ake ciki yana kulle har abada a cikin substrate a matsayin m saura tensile danniya. Da zarar tef ɗin ya sake ɗumamawa a cikin matakai na gaba, wannan ragowar damuwa yana haifar da raguwar ƙasa kuma kai tsaye yana lalata kwanciyar hankali.

2. m substrate flatness rushe shafi uniformity

Matsakaicin raguwar zafin jiki mara daidaituwa a cikin yankuna daban-daban na masana'anta (misali, gefen gaba da yankin tsakiya) yayin ɓarkewar ɓarna yana haifar da nakasar da suka haɗa da gefuna masu igiya, tafkuna masu cudanya, da ɓarkewar saman . A m substrate surface take kaiwa zuwa m shafi kauri a cikin m matakai, sauƙi haddasa iska kumfa ko matalauta adhesion a lokacin lamination, da kuma a kaikaice deteriorating duka girma da kuma aikin kwanciyar hankali na ƙãre kaset.

Tasiri A Lokacin Maganin Manne - Taimakon Damuwa na Sakandare

Tsarin mannewa (manufofin siliki-matsi-matsi, acrylic adhesives, da sauransu) suna warkewa a 150-200 ° C. Wannan zafin jiki ya yi ƙasa da kewayon sikelin duk da haka ya isa don kunna saura kulle damuwa a cikin abin da ke haifar da sakamako mara kyau.

1. Rashin raguwa na biyu yana haifar da lahani da kuma karkatar da girma

Lokacin shigar da tanda mai warkewa, ragowar raguwar damuwa a cikin abin da ke cikin ƙasa yana sakewa kuma yana haifar da raguwar tef ɗin aunawa. Wannan yana haifar da:

• Rage nisa mai yawa

• Micro-cracks, launin kwasfa na orange, ko gazawar haɗin gwiwa akan saman manne (kamar yadda raguwa ke faruwa a lokaci ɗaya tare da warkewa)

• Canje-canje na tsayin daka a cikin kauri mai mannewa da murƙushe na'urorin sakin layi (saboda rashin daidaituwa tsakanin saurin raguwar masana'anta da saurin abin nadi mai linzami)

2. Thermal curling yana kawar da daidaitaccen aiki

Layer na ƙasa yana yin kwangila da rayayye a ƙarƙashin matsanancin damuwa mai zafi, yayin da cikakkiyar manne da aka warke yana da nau'in haɓaka daban-daban na faɗaɗa thermal, yana haifar da rashin daidaituwa tsakanin yadudduka biyu. Tef ɗin yana murƙushewa nan da nan lokacin da aka kwaɓe daga kayan aikin saki ko fallasa ga zafi yayin amfani - kasa kwanciya da kuma rasa ikon sarrafawa da iya aiki.

Ci gaba da Sakin damuwa yayin Amfani da Ƙarshen - Rashin kwanciyar hankali na Tsawon Lokaci

Saura danniya na raguwa ba a cika kawar da shi ba yayin maganin mannewa yana ci gaba da kasancewa cikin aikace-aikacen samfurin da aka gama. Ƙarƙashin masking mai zafi mai zafi, lamination na thermal, ko yanayin hawan keke na zafi (misali, 260°C foda shafi), tef ɗin yana raguwa a hankali da ci gaba.

Sakamakon:

• Iyakoki masu rufe fuska (layin hatimi suna motsawa)

• Ɗaga gefen ko gazawar mannewa

• Cikakken asarar kwanciyar hankali

Wannan shine dalilin da ya sa wasu kaset suna kasawa a cikin filin ko da bayan wucewar dubawa na farko - an saki damuwa a hankali a hankali a kan lokaci da zafi mai zafi.

Maganin Core - Kawar da Ragewa Kafin Sintering

Don kera kaset ɗin mannewa na PTFE masu tsayin tsayi, tilastawa mikewa yayin aiki ba zai iya warware matsalolin raguwa da gaske ba. Dole ne a cimma cikakkiyar cirewar fiberglass shrinkage a tushen.

1. Hanyar Aokai PTFE

1. Yi amfani da cikakken saiti mai zafi (pre-shrunk) gilashin tushe na fiberglass - ƙimar rage zafin zafi sosai ana sarrafa shi ƙasa da 0.5% ƙarƙashin yanayin gwaji na 400°C × 10 mintuna (masu ƙaƙƙarfan ƙa'idodi waɗanda ke akwai don ƙimar ƙima).

2. Ƙara tsarin zafin jiki na zafin jiki kafin PTFE impregnation ko shafi - ƙyale zanen fiberglass don kammala raguwa na kyauta da cikakken sakin duk damuwa na ciki kafin shiga yankin sintering.

2. Sakamakon

Da zarar fiberglass masana'anta ya rage girman raguwar zafin jiki, bambance-bambancen ma'auni a lokacin ɓangarorin na gaba da kuma maganin mannewa zai fito ne kawai daga haɓakar zafin jiki da ƙanƙancewar resin da yadudduka na manne - tare da ƙaramin girma fiye da raguwar raguwar damuwa. Wannan yana ba da garanti mai mahimmanci:

• Kwanciyar hankali (tsawo da faɗi)

• Zazzagewar saman

• Juriya mai zafi da dogaro na dogon lokaci

Aokai PTFE yana zaɓar kawai cikakken saitin fiberglass substrates tare da ƙididdigar ƙima. Za mu iya samar da bayanan gwaji ta kowane buƙatun abokin ciniki.

Takaitawa - Ƙa'idar Pre-Rushewa

Aokai PTFE yana ba da shawarar saitin fiberglass kafin zafin zafi tare da raguwa <0.5% don duk aikace-aikace masu mahimmanci. Ga abokan cinikin da ke buƙatar girma mai ƙarfi, muna ba da ƙima mai ƙima tare da raguwa <0.3% a 400°C.

An samar da wannan abun cikin fasaha ta Jiangsu Aokai New Material Technology Co., Ltd.

Idan kuna buƙatar cikakkun bayanai dalla-dalla, yanayin aikace-aikacen da keɓance mafita don cikakken jeri na samfuranmu ciki har da yadudduka masu zafin jiki na PTFE, PTFE high-zazzabi m kaset, PTFE raga conveyor belts, sumul fusing inji bel, guda-gefe PTFE mai rufi zane, zafi-resistant conveyor bel da high-glazing masana'anta ta hanyar fiber tempera da ke ƙasa

• Mr. Guo: +86 18944819998

• Malam Liu: +86 13705266308

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