Inoita Zvakanaka Sei PTFE Yakakwira-Tembiricha Mucheka Inobata Thermal Shock?

Mune akawanda maindasitiri ekushandisa, PTFE jira harina kuratidzwa nekupisa kwakadzikama. Inosangana nekushanduka kwekushisa nekukurumidza - kubva mufiriza kuenda muhovhoni, kubva muchitsina chinopisa kuenda kumhepo yakadzikama, kana kubva kune chinovhara kupisa kuenda kunzvimbo inotonhorera. Izvi zvinonzi thermal shock.

Mubvunzo ndewokuti: inogona PTFE yakakwirira-tembiricha jira kurarama yakadzokororwa, kukurumidza tembiricha kushanduka pasina kutsemuka, delaminating, kana kurasikirwa kuita?

Mhinduro inobva pane tembiricha. Mukati memiganho yaro yekushanda, PTFE jira rinoita zvakanaka kwazvo. Asi isundidzire kumusoro, uye kupfeka kuchakundikana.

Aokai PTFE yakaedza kupisa kutyisa kuramba pane yedu chigadzirwa renji. Gwaro rino rinotsanangura kusiyana kwetembiricha kwakachengeteka, mashandisiro anoita zvinhu, uye kuti zvii zvekudzivisa.

Tolerable Temperature Difference Range - Chii Chakachengeteka?

1. Kushanda kwakajairika (-70°C kusvika 260°C)

Rapid tembiricha bhasikoro mukati merudzi urwu hazvizokonzerese kukuvadza kuri pachena kune jira. Mamiriro ekushandisa akajairika anosanganisira kugara uchichinja pakati pekutonhora pa -50 ° C uye inopisa yekutsikirira midziyo pa260 ° C. Izvo zvinhu zvinowedzera uye zvibvumirano, asi iyo PTFE yekupfekedza inoramba yakasimba uye iyo fiberglass substrate haina kuputika.

Muenzaniso kushandisa: Kuomesa-kuomesa midziyo apo bhandi rinochinjana pakati pechando chakadzika (-40°C) nehovhoni yekuomesa (150°C). PTFE jira rinobata izvi zuva nezuva.

2. Musiyano wetembiricha yakanyanya (yakatenderedza 250°C delta)

Machira ePremium PTFE anogona kutsungirira kuvhunduka kwakanyanya - semuenzaniso, kunyudzwa pakarepo mumvura inotonhora ye10 ° C mushure mekusangana ne260 ° C (kudonha kwe250 ° C). Iyo yekupfekedza haizotsemuka kana kubviswa mushure mekudzokorora kutenderera. Izvi zvakasimbiswa neAokai PTFE bvunzo.

3. Nzvimbo yengozi - pamusoro pe300 ° C

Ngozi yekukuvara inokwira zvakanyanya kana musiyano wetembiricha ukawedzera, sekutonhora nekukurumidza kubva kune tembiricha iri pamusoro pe300 ° C. Kana jira radarika 300°C (padhuze nePTFE's melting point ye327°C), the coating inova semi-yakanyungudutswa uye ine michina isina simba. Kutonhodza kamwe kamwe kunobva kwakonzera kuderera kukuru uye kutsemuka.

Kushanda Nheyo - Substrate vs. Coating

Iko kupisa kwekutyisa kwekuita kunotarirwa nezvinopindirana zvefiberglass substrate uye PTFE coating.

1. Fiberglass substrate - musana wakagadzikana

• Kupfava kunodarika 800°C

• Yakanyanya kuderera coefficient yekuwedzera kupisa (inenge 5 × 10⁻⁶/°C)

• Kutadza kupisa conductivity

Izvi zvinoreva kuti girazi fibers haawedzere kana chibvumirano zvakanyanya nekushisa. Vanochengetedza zviyero zvakagadzikana pasi pekutyisa kwekushisa uye vanodzivisa kushungurudzika kuputsa zvinobudirira. Iyo substrate haisi iyo isina simba link.

2. PTFE coating - the limiting factor

• Coefficient yekuwedzera kwekupisa inosvika makumi matatu kusvika makumi mana nguva yefiberglass (100-150 × 10⁻⁶/°C)

• Munguva yekudziya nekukurumidza uye kutonhora, iyo yekuputira inowedzera uye zvibvumirano zvakanyanya zvakanyanya kupfuura iyo substrate

• Izvi zvinounza kushushikana kukuru pane bonding interface

Nei ichiri kushanda: Iyo PTFE yekupfekedza itete (kazhinji 10-30 μm) uye inochinjika. Iyo impregnation process inoisunga zvakasimba kune fiberglass. Mukati meyakajairwa tembiricha renji, iyo yekupfeka inogona kutambanudza uye kupora pasina kuputika. Pakupisa kwakanyanya kana nekugadzirwa kwakashata, kushushikana kunopfuura simba rekuputira.

Aokai PTFE chiziviso: Yedu premium-giredhi jira rinoshandisa akawanda impregnation inopfuura, ichibvumira PTFE kupinda zvakadzika mukati mefiberglass weave. Izvi zvinogadzira 'anchor' yemuchina inoramba delamination panguva yekupisa bhasikoro - mutsauko wakakosha kubva kumachira emhando yakaderera anogara pamusoro chete.

Zvinhu Zvikuru Zvinokanganisa Thermal Shock Resistance

Haasi ese machira ePTFE akaenzana. Zvinhu zvitatu zvinotaridza kuti chimwe chigadzirwa chinoshingirira sei kuchovha bhasikoro.

1. Tekinoroji yekugadzira - impregnation quality nyaya

Machira emhando yepamusoro anopinda akawanda impregnation uye sintering process . PTFE inopinda zvakadzika mumagapu efiber, ichigadzira yakasimba anchoring chimiro. Iyi 'yakakiyiwa-mukati' chisungo chinopikisa delamination panguva yekuvhunduka kwekushisa.

Zvigadzirwa zvakaderera zvinoshandisa single-pass coating. Iyo PTFE inogara chete pamusoro. Pasi pekukurumidza kuchinja kwekushisa, iyo yekuputira inoputika sechinamira chakasununguka.

2. Coating ukobvu - mutete zviri nani

Zvipfeko zvakatetepa zvinogadzirisa zviri nani kune deformation ye substrate. Iyo 5-10 μm yekupfekedza ichachinja negirazi fibers. Iyo gobvu 30-50 μm coating yakaoma uye inogona kutsemuka.

3. Substrate giredhi - dense weave, yakakwirira-simba filaments

Machira akarukwa, akasimba-akasimba efilament fiberglass machira ane mashoma ma voids uye nani dimensional kugadzikana. Ivo zvakare vanopa imwe nzvimbo yepamusoro yePTFE anchoring. Machira emhando yakaderera, akavhurika-weave anonyanya kukanganisa kumucheto uye kurasikirwa kwekuputira pasi pekupisa bhasikoro.

Kugara muKushanda Zvishandiso - Zvekutarisira

Mumidziyo inoda kudzokororwa kupisa uye kutonhora, senge:

• Heat sealers (kutenderera masekondi mashoma ega ega)

• Kupisa-kudzvanya mapedhi ekuzviparadzanisa nevamwe

• Welding kuchengetedza zvinhu

• Zvishandiso zvemabhasikoro zvinoomesa nechando

Machira ePrimum PTFE epamusoro-tembiricha machira anogona kutsungirira makumi ezviuru zvekudziya kutenderera pasina kukundikana.

1. Kukundikana kunoitika sei - kuneta zvishoma nezvishoma

Kukundikana hakusi kamwe kamwe. Zvinoitika nhanho nhanho:

1. Micro-cracks inokura muPTFE coating (isingaoneki neziso rakashama)

2. Kupfeka kunotanga kurasikirwa nechinhu chisina tsvimbo munzvimbo dzakamanikidzwa

3. Edge peeling inoonekwa pane creases kana kucheka mipendero

4. Coating delaminates, kufumura fiberglass

5. Fiberglass frays uye jira rinobvaruka

Kuongorora nguva dzose (zviuru zvishoma zvezvikamu zvishomanana) zvinogona kuona nokukurumidza kutsemuka kusati kwakundikana.

Mashandisiro Manotsi & Zvakajairwa Pitfalls - Zvekudzivisa

Kunyangwe iyo yakanakisa PTFE jira inogona kuparadzwa nekushanda zvisina kunaka.

1. Usafe wakakurumidza kutonhora kubva pakupisa kwakanyanya (>300°C)

Kana jira racho richipisa pamusoro pe300 ° C (padhuze nekunyunguduka kwe327 ° C) uye rinobva ratonhodzwa kamwe kamwe (semuenzaniso, kudzima mumvura kana kunyange kungoisa kunze kwemhepo yekushisa kwekamuri), iyo PTFE coating ichaderera zvakanyanya uye inogona kutotanga kuora. Izvi zvinoguma nekutsemuka, kusvuuka, uye kukuvara zvachose . Kuvhiya uku kunofanira kurambidzwa zvachose.

Mutengo wekuchengetedza: Kwehupenyu hurefu, chengetedza tembiricha yejira iri pasi pe260°C. Kufamba kwenguva pfupi kusvika 280-300 ° C kunoshivirira kune mamwe mamakisi, asi haambovhunduke-kutonhorera kubva kune iwo tembiricha.

H3: Ramba kure nezvinhu zvinopinza uye kupeta zvakanyanya

Thermal shock yakasanganiswa nekukuvadzwa kwemuchina - senge macrease, zvikweshwa, kana kupeta kwakapinza - kunowedzera kuderera zvakanyanya. A scratched coating yatopera simba; bhasikoro rinopisa rinobva raparadzira mitswe kubva pakutanga.

Maitiro akanaka: Ongorora jira nguva dzose. Tsiva kana ukaona zvikwambo zvinooneka, macrease mamaki, kana kusimudza mupendero usati waenderera mberi nekufambisa bhasikoro.

Pfupiso – Thermal Shock Guidelines yePTFE Fabric

Aokai PTFE inogadzira premium PTFE jira rinopisa rinopisa rine akawanda ekuisa mapasi uye akatetepa, anochinjika mabhandi akagadziridzwa yekupisa kuvhunduka kuramba. Zvemaapplication ane tembiricha yekuchovha bhasikoro (semuenzaniso, kutonhora nekukurumidza kubva pa260 ° C), taura nesu kuti uwane chaiyo data yebvunzo uye kurudziro yegiredhi.

Zviri pamusoro apa zvinopihwa ne Jiangsu Aokai New Materials Technology Co., Ltd.

Kana iwe uchida rumwe ruzivo pamusoro pezvakatemerwa, mamiriro ekushandisa uye zvigadziriso zvakagadziridzwa zvemutsara wezvigadzirwa zvedu, zvinosanganisira PTFE yakakwirira-tembiricha machira, PTFE yakakwirira-tembiricha matepi, PTFE mesh mabhandi, seamless bonding mabhandi emuchina, single-sided PTFE jira, yakakwirira-tembiricha inodzivirira inotakura mabhandi, inodzivirira bhandi regirazi, ndapota taura nesu.

• VaGuo: +86 18944819998

• Mr. Liu: +86 13705266308

Isu tinonamatira kuhuzivi hwesevhisi yehunyanzvi uye kutendeseka, uye tinoyedza kukupa iwe-yekumira mhinduro uye masevhisi ane hanya.