PTFE sananne ne don ƙarancin juzu'i (0.05-0.10). Amma yaushe Ana amfani da tef mai zafi mai zafi na PTFE a aikace-aikacen gogayya mai zamewa - irin su titin jagora, sawa tube, lanƙwasa, ko hatimin zamewa - gogayya kawai bai isa ba. Babban kalubalen shine juriya abrasion.
Ba tare da zaɓin da ya dace ba, murfin PTFE yana lalacewa cikin makonni, yana fallasa ma'aunin fiberglass kuma yana haifar da gazawar bala'i. Ba a ƙera madaidaicin tef ɗin mara sanda ba don madaidaicin lamba mai zamiya.
Aokai PTFE ya haɓaka kaset ɗin PTFE masu jurewa don buƙatar aikace-aikacen zamewa. Wannan jagorar ya ƙunshi mahimman la'akari guda biyar: ma'aunin juriya na abrasion, ingancin sutura, kwanciyar hankali na zafi, aikin manne, da dabarun shigarwa.
Me yasa Taber abrasion al'amura: Tsaftace PTFE shafi yana sawa cikin sauri a ƙarƙashin lamba mai zamiya. Cikakken PTFE (tare da fiber carbon, graphite, MoS₂, ko fiber gilashi) yana rage yawan lalacewa. Tef ɗin mai jurewa na ƙima na iya cimma <5 MG asara a kowace 1000 hawan keke - 20-50x mafi kyau fiye da PTFE da ba a cika ba.
Ƙayyadadden ƙayyadadden ƙayyadaddun PV: Matsakaicin samfuran izini na lamba Matsa lamba (P) da saurin zamewa (V). Wucewa wannan iyaka yana haifar da saurin lalacewa, zafi fiye da kima, ko gazawar sutura. Koyaushe nemi PV masu lankwasa daga mai siyar ku.
Aokai PTFE yana ba da maki tef mai jurewa tare da asarar Taber abrasion a ƙarƙashin hawan 10 mg/1000 - ingantaccen gwajin ASTM D4060 mai zaman kansa. Tsarin mu mai cike da fiber-carbon yana kiyaye μ ƙasa da 0.15 koda bayan zagayowar 10,000.
2. Rufe Quality & Substrate Gina
Siga
Shawara
Me yasa
Kauri mai rufi (bangon aiki)
≥0.05 mm (0.08-0.15 mm don nauyi mai nauyi)
Rufe mai kauri yana ba da rayuwa mai tsayi
Nau'in sutura
Cika PTFE (carbon, graphite, MoS₂, fiber gilashi)
Mafi girman juriyar abrasion vs. ba a cika ba
Rufe mutunci
Babu ramuka, cikakken sintet
Yana hana fitowar fiberglass da wuri
Tushen masana'anta ƙarfi
≥200 N/cm
Yana tsayayya da mikewa a ƙarƙashin juzu'i
Nau'in saƙa
Ƙarfi mai ƙarfi na fili ko satin saƙa
Aramid masana'anta don matsananciyar lodi
3. Resistance Heat & Thermal Kwanciyar hankali
Ci gaba da zafin jiki na sabis zai cika buƙatun aiki (yawanci ≥260°C)
Babu m shafi mai laushi ko ƙarar ƙura a babban zafi
Bayan tsufa na thermal a 250 ° C na tsawon sa'o'i 100, ƙarfin jurewa da lalata aikin abrasion ba zai wuce 20% ba.
4. Ayyukan Layer na Adhesive (Don Kaset ɗin Manne Kai)
Nau'in mannewa
Juriya na Zazzabi
Anti-Creep
Dace da zamewa
Silicone PSA
≤260°C
Yayi kyau tare da madaidaiciyar hanyar haɗin gwiwa
Zaɓin na yau da kullun
Acrylic PSA
≤150°C
Talakawa karkashin zafi
Ba a ba da shawarar don zamewa mai zafi ba
Babban + silicone
≤260°C
Madalla
Don ƙaramin-makamashi-makamashi (misali, bakin karfe)
Lura: Don aikace-aikacen zamewa mai nauyi mai nauyi inda tef ɗin ke ƙarƙashin ci gaba da damuwa mai ƙarfi, la'akari da ɗaure injin (rivets, clamping tube) ban da mannewa.
5. Surface Texture & Kauri Uniformity
Rubutun saman: Ƙaƙƙarfan rubutu mai ɗanɗano yana taimakawa riƙe tarkacen lalacewa mai kyau, hana ƙayyadaddun spikes ko lalacewa irin nau'in garma da abubuwan da aka tara suka haifar.
Haƙuri na kauri: Jimlar kauri da aka sarrafa tsakanin ± 0.02 mm a kan cikakken mirgina don tabbatar da shigar da ruwa da guje wa rushewar da wuri.
Maganganun Haɓakawa don Yanayin Zamiya Mai Girma
1. Raw Material Gyaran
Gyara
Tasiri
Mafi kyawun Ga
Carbon fiber filler
Yana inganta juriyar abrasion, yana ƙara μ dan kadan
Bakin karfe, plating mai wuyar chrome, aluminum-anodized mai wuya
Guji m simintin ƙarfe (free graphite cushe cikin PTFE)
Rigakafin ƙwayar cuta mai wuya
Yakin kura, tsaftacewa na yau da kullun
Abubuwan da aka haɗa suna haifar da lalacewa mai tsanani
Maɗaukakin busassun man shafawa
PTFE ko busassun busassun busassun fluorine (marasa gurɓata, juriya mai zafi)
Yana rage gogayya da haɓaka zafi
3. Tukwici na Ƙirƙirar Shigarwa & Tsarin Tsarin
Auna
Aiwatarwa
Amfani
Kariyar gefen
Saita gefuna a waje da yankin rikici; amintacce tare da ƙwanƙwasa ƙarfe ko saka cikin tsagi; inji chamfer/takaitaccen tip a kan mating part
Yana kawar da bawon irin shebur
Cikakken haɗin gwiwa
Degrease da roughen tushe (batsa zuwa Sa2.5); mirgine tef sosai don fitar da iska; don nauyi mai nauyi, haɗa manne tare da ɗaurin inji
Yana hana ƙaura da kama iska
Modular zane mai maye gurbin
Dutsen tef akan madaidaicin madaidaicin madauri/subplate
Sauyawa mai dacewa na lokaci-lokaci, yana adana daidaiton kayan aiki
Ƙarshe - Ƙa'idodin Zaɓin Ƙaƙwalwar Ƙira guda uku
Don yanayin yanayin zamewar da aka mai da hankali kan abrasion, ba da fifiko:
Cikakken gyaran gyare-gyare na PTFE - Fiber Carbon, graphite, MoS₂, ko gilashin fiber filler da cika fuska yana inganta juriya na Taber (manufa <15 MG / 1000 hawan keke, daidai <5 MG).
Ƙarfin ƙarfi mai ƙarfi - Fiberglass tare da ≥200 N / cm ƙarfin ƙarfi, ko masana'anta na aramid / carbon don matsananciyar lodi.
Sarrafawar takwaransa mai ƙarfi - Kula da Ra 0.2-0.4 μm, yi amfani da bakin karfe ko chrome mai wuya.
Ƙarin buƙatun:
Nemi bayanan gogewar Taber da iyakokin PV daga masu kaya.
Shigarwa tare da kariya ta gefen (tsalle-tsalle, saka tsagi, sassan mating).
Don ci gaba da zamiya mai nauyi mai nauyi, haɗa manne tare da ɗorawa na inji.
Zane don sauyawa na zamani inda zai yiwu.
A taƙaice, zaɓar tef ɗin zafin jiki mai zafi na PTFE don aikace-aikacen gogayya na zamiya mai ƙyalli yana buƙatar wuce ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙima da ƙayyadaddun zafi. Mayar da hankali kan asarar Taber abrasion (<15 mg/1000 cycles), cike da gyare-gyaren shafi, ƙarfin juzu'i (≥200 N/cm), da rashin ƙarfi na mating (Ra 0.2-0.4 μm). Kariyar gefen da ta dace, cikakken haɗin kai, da ƙirar ƙira ta ƙara tsawon rayuwar sabis.
Ka guji tef ɗin PTFE da ba a cika ba don hulɗar zamiya mai ƙarfi - zai ci gaba da sauri. Madadin haka, saka maki masu jure lalacewa tare da ingantattun bayanan gogewa.
Kuna buƙatar tef ɗin PTFE mai jure lalacewa don aikace-aikacen ku na zamiya? Aokai PTFE yana bada carbon-fiber, graphite, da MoS₂ cike da maki tare da asarar Taber abrasion ƙasa da 10 mg/1000 hawan keke. Tuntube mu tare da matsin lamba, saurin ku, da abin takwaransa don shawara.
