slide_image_contaminants

Varnish

Varnish

Nkọwa

Nkwụnye ego dị gịrịgịrị, siri ike, na-adọrọ adọrọ, nke na-enweghị mmanụ, nke sitere na ihe fọduru nke organic mejupụtara, yana nke a na-akọwapụta ngwa ngwa site na ike agba.A naghị ewepụ ya ngwa ngwa site na iji ihe dị ọcha, kpọrọ nkụ, dị nro, ihe nhicha na-enweghị lint, ọ na-eguzogidekwa ihe mgbaze juru.Agba ya nwere ike ịdị iche, mana ọ na-apụtakarị na agba ntụ, aja aja ma ọ bụ amber.Isi mmalite: ASTM D7843-18

Varnish-1

Kedu ka esi etolite varnish

A, mmanụ aṅụ na-emebi ọrụ n'ihi kemịkalụ, thermal, stress mechanical nke na-eme ka mmeghachi omume nke oxidation mmanụ na-eme ngwa ngwa na nhazi varnish na-amalite site na oxidation.

varnish-cycle-1200x262
Nkeji 1: Oxidation

- kemịkalụ:Ọtụtụ mmeghachi omume kemịkalụ na-eme ka mmanụ ahụ dị afọ.Oxidation nke mmanụ na-eduga n'ọtụtụ ngwaahịa ire ere, gụnyere ụmụ irighiri ihe na acid na-adịghị edozi.Okpomọkụ na ọnụnọ nke nkọwa igwe (Iron, ọla kọpa) na-eme ka usoro ahụ dịkwuo elu.Ọzọkwa, mmanụ na-ekuku nke ukwuu na-enwekarị ike ịnweta Oxidation.

- Thermal:Mgbe ikuku ikuku na-abanye n'ime mmanụ ahụ, oke ọdịda mmanụ nwere ike ime n'ihi ọnọdụ a maara dị ka PID (Pressure-induced Dieseling) ma ọ bụ PTG (Pressure-induced Thermal Deradation).Okpomọkụ mpaghara ahụ karịrị 538 ℃ mgbe ikuku ikuku na-ada n'okpuru nrụgide dị elu, nke na-edugakwa na mbibi okpomọkụ.

- Mechanical:"Ịkpachasị ihe" na-eme mgbe a na-adọwa ụmụ irighiri mmanụ ka ha na-aga n'etiti ebe igwe na-akpụ akpụ.

Nkeji 2: Polymerization

Polymerization na-apụta dị ka ngwaahịa oxidation & mmeghachi omume mgbakwunye na-ejikọta ma mepụta ụmụ irighiri akwara ogologo nwere ibu molekụla dị elu.Mkpụrụ ndụ ndị a bụ polared.Ọnụego nke polymerization molekụla dabere na okpomọkụ na ntinye nke ngwaahịa nke oxidation.

Nkeji 3: Solubility

Ọ na-egosi ike igbari ụmụ irighiri ihe n'ime ngwọta nke okpomọkụ na-emetụta ozugbo.Dị ka ngwaahịa nke oxidation na-aga n'ihu na-emepụta, mmiri mmiri dị nso na ebe saturation.

Temperatures-768x353

Usoro maka ntinye nke particulate varnish na-agbanwe agbanwe.N'ọtụtụ ọnọdụ, ozugbo varnish na-etolite, a ga-etinyeghachi ha n'ime mmiri ahụ wee daa ma ọ bụrụ na solubility nke mmanu na-abawanye.

Nkeji 4: Mmiri ozuzo

Mmiri ahụ enweghị ike igbari ụmụ irighiri mmiri polymerized ọhụrụ ma erute ebe saturation erute ma ọ bụ mmiri na-agafe na mpaghara dị jụụ (Ihe solubility na-ebelata mgbe okpomọkụ dara).Ebe ọ bụ na enweghị ike ijide ngwaahịa ndị ọzọ oxidative na ngwọta, ha na-ebuli ma na-emepụta ahụ dị nro (sludge / varnish).

Nkeji 5: Agglomeration

The insoluble soft ahụ dị mfe agglomerate ọ bụla ọzọ na-etolite ibu polarized ahụ na elu molekụla arọ.

Agba 6: Varnish kpụrụ

Ọla ndị ọzọ polar karịa ndị a polarized ahụ nke mere na ha na-adị mfe imubanye na metal elu (oyi zones, mma nwechapụ, ala eruba) ebe a nnyapade oyi akwa (Varnish) na-guzobere na-adọta ndị ọzọ ahụ rube isi na ya.Ọ bụ otú ahụ ka varnish si malite

Varnish Harzds

Ịrapara na ijide valves

Oke ekpo oke ọkụ

Mbelata arụmọrụ nke ndị na-ekpo ọkụ ọkụ

Mmụba iyi na akụrụngwa dị oke mkpa na valvụ

Ogologo oge ndụ igwe, mmanu, nzacha na akara

Uzo esi achọpụta VARNISH

N'ihi nsonaazụ dị oke ọnụ nke ọnụnọ varnish, ị ga-enyocha ọnọdụ nke ike varnish na sistemụ mmanụ gị.Usoro kachasị nakweere bụMembrane Patch Colorimetry(MPC ASTM7843).Usoro nnwale a na-ewepụta ihe ndị na-adịghị ahụkebe site na nlele mmanụ turbine na-arụ ọrụ na patch (nwere akpụkpọ ahụ 0.45µm) na ụcha akpụkpọ ahụ na-enyocha site na spectrophotometer.A na-akọ nsonaazụ ya dị ka uru ΔE.

MPC-test-1200x609

Ngwọta maka iwepụ VARNISH

Nlereanya Varnish soluble Varnish na-adịghị edozi Mmiri
WVDJ
WVD-II  
WJD    
WJL