Ɔkwan Bɛn so na PTFE Ntama a Ɛwɔ Ɔhyew a Ɛkorɔn Di Ɔhyew Ahodwiriw Ho Dwuma Yiye?

Wɔ mfiridwuma mu nneɛma pii mu no, . PTFE ntama no ntumi nkɔ ɔhyew a ɛkɔ so daa mu. Ɛnya ɔhyew mu nsakrae ntɛmntɛm – efi frigye so kɔ fononoo so, efi afiri a wɔde tintim nneɛma a ɛyɛ hyew so kɔ mframa a atwa ho ahyia so, anaasɛ efi ɔhyew a wɔde siw ano kɔ baabi a ɛyɛ nwini. Wɔfrɛ eyi thermal shock.

Asɛmmisa no ne sɛ: so PTFE ntama a ɛyɛ hyew kɛse betumi atra ase bere a ɔhyew a ɛsakra mpɛn pii, a ɛsakra ntɛmntɛm a ɛrepaapae, ɛrensɛe, anaasɛ ɛrenhwere adwumayɛ?

Mmuae no gyina ɔhyew a ɛwɔ hɔ no so. Wɔ ne dwumadie anohyetoɔ a ɛyɛ daa mu no, PTFE ntama yɛ adwuma yie paa. Nanso pia no kɔ soro dodo, na nea wɔde akata so no bedi nkogu.

Aokai PTFE asɔ ɔhyew a ɛko tia ahwɛ wɔ yɛn nneɛma ahorow no nyinaa mu. Saa akwankyerɛ yi kyerɛkyerɛ ɔhyew mu nsonsonoe a ahobammɔ wom, sɛnea ade no yɛ adwuma, ne nea ɛsɛ sɛ wɔkwati mu.

Tolerable Temperature Nsonsonoe Range – Dɛn na Ahobammɔ?

1. Adwumayɛbea a ɛfata (-70°C kosi 260°C) .

Ɔhyew a ɛkyinkyini ntɛmntɛm wɔ saa beae yi mu no remma ntama no nsɛe ade pefee. Sɛnea wɔtaa de di dwuma ne sɛ wɔtaa sesa nneɛma a wɔde sie awɔw mu wɔ -50°C ne mfiri a wɔde mia nneɛma a ɛyɛ hyew wɔ 260°C ntam. Ade no trɛw na ɛtwetwe, nanso PTFE a wɔde akata so no da so ara yɛ nea ɛte saa na fiberglass substrate no mpaapae.

Nhwɛsoɔ a wɔde di dwuma: Nsuo-drying mfiri a belt no sesa wɔ deep freeze (-40°C) ne drying oven (150°C) ntam. PTFE ntama di eyi ho dwuma da biara da.

2. Nsonsonoe a ɛtra so wɔ ɔhyew mu (bɛyɛ 250°C delta) .

PTFE ntama a ɛyɛ fɛ tumi gyina ɔhyew a ano yɛ den ano – sɛ nhwɛso no, wɔde bɛhyɛ nsuonwini a ɛyɛ 10°C mu ntɛm ara bere a wɔde ahyɛ 260°C (250°C a ɛtɔ gu fam) mu akyi. Ade a wɔde kata so no renpaapae anaasɛ ɛremfi bere a wɔadi akɔneaba mpɛn pii akyi no. Wɔde Aokai PTFE sɔhwɛ agye eyi atom.

3. Asiane beaeɛ – ɛboro 300°C

Asiane a ɛwɔ hɔ sɛ ɛbɛsɛe no kɔ soro kɛse sɛ ɔhyew mu nsonsonoe no kɔ soro bio a, te sɛ onwini a ɛba ntɛmntɛm fi ɔhyew a ɛboro 300°C mu. Sɛ ntama no boro 300°C (a ɛbɛn PTFE no nwene a ɛyɛ 327°C) pɛ a, ade a wɔde kata so no bɛyɛ fã bi a nwene na ɛyɛ mmerɛw wɔ mfiri mu. Afei onwini a ɛba mpofirim no ma ɛyɛ ketewaa kɛse na ɛpaapae.

Adwumayɛ Nnyinasosɛm – Substrate vs. Coating

Ɔhyew shock adwumayɛ no gyina fiberglass substrate ne PTFE coating no su a ɛboa.

1. Fiberglass substrate – akyi dompe a ɛyɛ den

• Nsuo a ɛyɛ mmerɛw a ɛboro 800°C

• Ɔhyew ntrɛwmu nsusuwii a ɛba fam koraa (bɛyɛ 5 × 10−6/°C) .

• Ɔhyew a ɛnyɛ papa

Saa nneɛma yi kyerɛ sɛ ahwehwɛ nhama no ntrɛw anaasɛ ɛntwetwe kɛse bere a ɔhyew no kɔ so no. Wɔkura nsusuwii a ɛyɛ den mu wɔ ɔhyew a ɛma ɛyɛ hyew ase na wɔko tia nhyɛso a ɛpaapae yiye. Substrate no nyɛ ade a ɛyɛ mmerɛw no.

2. PTFE coating – ade a ɛto ano hye

• Ɔhyew ntrɛwmu nsusuwii bɛyɛ fiberglass (100-150 × 10−6/°C) mmɔho 30 kosi 40 .

• Bere a ɛyɛ hyew na ɛyɛ nwini ntɛmntɛm no, ade a wɔde kata so no trɛw na ɛtwetwe kɛse koraa sen nea ɛwɔ ase no

• Eyi de adwennwen kɛse ba wɔ bonding interface no so

Nea enti a ɛda so ara yɛ adwuma: PTFE a wɔde kata so no yɛ teateaa (mpɛn pii no ɛyɛ 10-30 μm) na ɛyɛ mmerɛw. Ade a wɔde hyɛ nsu mu no kyekyere no denneennen wɔ fiberglass no ho. Wɔ ɔhyew a ɛfata mu no, ade a wɔde kata so no betumi atrɛw na asan ayɛ yiye a ɛnpaapae. Sɛ ɔhyew a ano yɛ den anaasɛ wɔnyɛ no yiye a, nhyɛso no boro nea wɔde akata so no ahoɔden so.

Aokai PTFE hyɛ no nsow: Yɛn ntama a ɛyɛ fɛ no de impregnation passes pii di dwuma, na ɛma PTFE tumi hyɛn fiberglass weave no mu kɔ akyiri. Eyi ma mfiri 'anchor' a ɛko tia delamination bere a thermal cycling – nsonsonoe titiriw bi fi coatings a ɛba fam a ɛtra soro nkutoo.

Nneɛma Titiriw a Ɛka Thermal Shock Resistance

Ɛnyɛ PTFE ntama nyinaa na ɛyɛ pɛ. Nneɛma abiɛsa na ɛkyerɛ sɛnea ade pɔtee bi gyina ɔhyew kyinhyia ano yiye.

1. Mfiridwuma a wɔde yɛ nneɛma – impregnation quality ho hia

Ntama a ɛyɛ papa no fa akwan horow pii a wɔfa so de nsu gu mu na wɔyɛ no sintering mu . PTFE hyɛn nhama a ɛwɔ ntam no mu kɔ akyiri, na ɛyɛ anchoring nhyehyɛe a ɛyɛ den. Saa 'locked-in' bond yi ko tia delamination wɔ thermal shock bere mu.

Nneɛma a ɛba fam de ade a wɔde kata so a ɛtwam pɛnkoro na edi dwuma. PTFE no tena soro nkutoo. Wɔ ɔhyew a ɛsakra ntɛmntɛm ase no, ade a wɔde kata so no yi fi hɔ te sɛ sticker a ɛnyɛ den.

2. Coating thickness – thinner yɛ papa

Nneɛma a wɔde kata so a ɛyɛ tratraa no dannan ne ho yiye ma ɛne substrate no deformation hyia. 5-10 μm a wɔde kata so no bɛbɔ ne ahwehwɛ nhama no. 30-50 μm a ɛyɛ den a wɔde kata so no yɛ den na ɛda adi sɛ ɛbɛpaapae.

3. Substrate grade – nwene a ɛyɛ den, nhama a ahoɔden wom kɛse

Ntama a wɔde nhama ayɛ a wɔanwene no denneennen a ahoɔden wom kɛse no nni baabi a ɛda hɔ kwa na ɛtumi gyina pintinn wɔ ne kɛseɛ mu yie. Wɔsan nso ma asase ani pii ma PTFE anchoring. Ntama a ɛnyɛ papa a wɔanwene a wɔabue mu no taa yɛ nea anoano sɛe na ɛyera wɔ nea wɔde kata so wɔ ɔhyew kyinhyia ase.

Durability wɔ Practical Applications mu – Nea Ɛsɛ sɛ Wɔhwɛ kwan

Wɔ nnwinnade a ɛhwehwɛ sɛ wɔma ɛyɛ hyew na wɔma ɛyɛ nwini mpɛn pii, te sɛ:

• Heat sealers (kyinhyia wɔ sikɔne kakraa biara mu) .

• Nneɛma a wɔde tew nneɛma ho a wɔde mia ɔhyew so

• Welding ahobammɔ nneɛma

• Freeze-thaw sakre so mfiri

Premium PTFE ntama a ɛyɛ hyew kɛse tumi gyina ɔhyew kyinhyia mpempem pii ano a enni huammɔ.

1. Sɛnea huammɔdi ba – ɔbrɛ nkakrankakra

Di nkogudi nyɛ nea ɛba mpofirim. Ɛkɔ so anammɔn biara:

1. Mpaapaemu nketenkete ba PTFE a wɔde kata so (a aniwa nhu) no mu .

2. Nneɛma a wɔde kata so fi ase hwere nneɛma a ɛnyɛ nea ɛbata ho wɔ mmeae a adwennwen wɔ no

3. Edge peeling pue wɔ creases anaa anoano a wɔatwa

4. Coating delaminates, na ɛda fiberglass adi

5. Fiberglass frays ne ntama a ɛtetew

Nhwehwɛmu a wɔyɛ no daa (akyinhyia mpempem kakraa biara) betumi ahu mpaapaemu ntɛm ansa na adi huammɔ kɛse.

Nsɛm a Wɔde Di Dwuma & Afiri a Ɛtaa Ba – Nea Ɛsɛ sɛ Wɔkwati

PTFE ntama a eye sen biara mpo betumi asɛe denam dwumadie a ɛmfata so.

1. Mma ɛnnwo ntɛmntɛm da mfi ɔhyew a ano yɛ den (>300°C) mu .

Sɛ wɔma ntama no yɛ hyew boro 300°C (ɛbɛn baabi a ɛbɛbɔ 327°C) na afei wɔma ɛyɛ nwini mpofirim (sɛ nhwɛso no, wɔdum wɔ nsu mu anaasɛ mpo wɔde hyɛ mframa a ɛyɛ hyew mu ara kwa) a, PTFE a wɔde kata so no bɛtew kɛse na ebetumi mpo afi ase aporɔw. Eyi ma ɛpaapae ntɛm ara, ɛho tew, na ɛsɛe daa . Ɛsɛ sɛ wɔbara oprehyɛn yi denneennen.

Ahobammɔ: Sɛ wopɛ sɛ wotra ase kyɛ a, ma ntama no hyew nkɔ fam nsen 260°C. Nsrahwɛ ntiantiaa a ɛkɔ 280-300°C no yɛ nea wotumi gyina ano ma adesuakuw ahorow bi, nanso ɛnyɛ ahodwiriw-nwini da mfi saa ɔhyew no mu.

H3: Twe wo ho fi nneɛma a ano yɛ nnam ne nea wobɛkotow dodo ho

Ɔhyew a ɛyɛ hu a wɔde mfiri a ɛsɛe ade ka ho – te sɛ nsensanee, nsensanee, anaa nsensanee a ano yɛ nnam – ma ɔsɛe no yɛ ntɛmntɛm kɛse. Wɔayɛ ade a wɔde kata so a wɔabɔ no mmerɛw dedaw; afei thermal cycling trɛw mpaapaemu fi mfiase.

Adeyɛ pa: Hwɛ ntama no mu daa. Sɛ wuhu nsensanee a wotumi hu, nsensanee, anaasɛ anoano a wɔama so ansa na wɔakɔ so de thermal cycling akɔ so a, sesa.

Nsɛm a wɔaboaboa ano – Thermal Shock Akwankyerɛ a ɛfa PTFE Fabric ho

Aokai PTFE yɛ PTFE ntama a ɛyɛ hyew a ɛkorɔn a ɛwɔ impregnation passes pii ne coatings a ɛyɛ tratraa a ɛyɛ mmerɛw a wɔayɛ no yiye ama ɔhyew a ɛko tia. Sɛ wopɛ dwumadie a ɛwɔ ɔhyew kyinhyia a ɛboro soɔ (sɛ nhwɛsoɔ no, onwini a ɛyɛ ntɛmntɛm firi 260°C), di yɛn ho nkɔmmɔ na woanya sɔhwɛ ho nsɛm pɔtee ne abasobɔdeɛ ho nyansahyɛ.

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