Iglu yepolyurethane enamathelayo

5. Ukusetyenziswa:

(1) Unyango lwangaphambili: umphezulu wokuncamathelisa uyacocwa.

(2) ubukhulu: sebenzisa i-sawtooth scraper ukufaka iglu kumphezulu wokuncamathelisa ngokulinganayo, unokusebenzisa ukugquma ngomatshini, awukwazi ukusebenzisa ibrashi yebrashi (iglue viscosity inkulu), isixa sokuxubha malunga ne-250g/m2, ngokuthe ngqo eyona meko ilawula ubungakanani beglue.

(3) i-composite: emva kokuba iglue ingaba yi-adhesive composite.

4 emva kokuhlinzwa.

Imilinganiselo yemveliso:

Igama lemveliso ye-polyurethane enamathelayo enegwebu

Iimpawu kufuneka zihambelane

Uhlobo lwePU – 90

I-Viscosity (MPa · s) 3000-4000

Ubume bezinto ezininzi

PH 6-7

Umbala wenkangeleko umdaka

Ixesha lokunyanga imizuzu engama-60

Ukunyanga 90%

Ubomi beshelufu ziinyanga ezili-12

I-polyurethane foam

Iiparamitha zemveliso

Iinkcukacha zokupakisha

Iimbonakalo

Ineempawu zokusebenza okuphezulu, ulwakhiwo olufanelekileyo, ugwebu emva kokunyanga, ukunganyibiliki kunye nokunganyibiliki, ukumelana nobushushu obuphezulu kunye obuphantsi.

Ubungakanani besicelo

Ukwenziwa kweengcango ezikwaziyo ukumelana nomlilo, iingcango ezichasene nobusela, iingcango zendlu, izixhobo ezibandayo, kunye nezixhobo ezahlukeneyo zokumelana nomlilo kunye ne-thermal insulation (uboya bamatye, uboya beceramic, uboya beglasi obucwebe kakhulu, iplastiki ye-polystyrene foam, njl.njl.) yokudibanisa.Kuba isinyithi ukuya kwintsimbi yokubambelela.

Imiyalelo

1. Umgaqo-siseko wokunyanga: Le ngqungquthela yinto enye ye-solvent-free adhesive, ephiliswa ngumswakama ofakwe emoyeni kunye nobuso be-adherend.

I-2.Unyango oluphezulu lwe-adherend: susa ioli kunye nothuli kwindawo yokubambelela.Amafutha amaninzi amaninzi angacocwa nge-acetone okanye i-xylene.Ukuba akukho nkunkuma yeoli, akuyimfuneko ukucoca.Ixesha, ukuba kuyimfuneko, fafaza inani elincinci lenkungu yamanzi kwindawo yerabha ngesitshizi.

I-3.I-Glue yokugqoka: Sebenzisa i-zigzag scraper ukuze usebenzise ngokulinganayo iglue ebusweni be-adherend.I-glue yomatshini nayo ingasetyenziswa, kodwa ukuxubha akufuneki (i-grease viscosity inkulu), kwaye isixa sokugquma simalunga ne-150-250g /㎡.Umphezulu wokunamathelisa unokuncitshiswa kancinane, kwaye uburhabaxa bomphezulu bunokwandiswa kancinane, oko kukuthi, nje ukuba imiphezulu yezinto ezimbini ezincamathelayo idibana kwaye inokuqhagamshelana ngokupheleleyo neglu, ukuba ngaphantsi komthamo wokugquma, kungcono, kuba iglue engaphezulu isetyenziswa, kokukhona Ukufuma okufunxayo kumphezulu we-adherend kulinganiselwe, okuya kuchaphazela ixesha lokunyanga.Ukuba isixa seglue esisetyenzisiweyo siyafuneka, inkungu encinci yamanzi inokutshizwa ngokufanelekileyo.

I-4.compound: inokudityaniswa

I-5.I-Post-treatment: Ngenxa ye-adhesive foam yale rubber, xa i-adhesive layer iphiliswa, iglue inokubhobhoza i-micropores ye-adherend, edlala indima ye-anchoring kunye nokwandisa amandla okudibanisa.Izinto eziphathekayo zihlanganiswe kwaye zinokukhululeka emva kokunyanga (uxinzelelo malunga ne-0.5kg-1kg / cm2).

I-6.Ukucoca izixhobo kunokusebenzisa i-ethyl acetate solvent.

Ukulumkela

1, Sebenzisa i-spatula ye-serrated ye-scraper, njengepleyiti ecaba.Nangona kunjalo, ukuba i-glue isetyenziswe kakhulu, ayiyi kuba ne-glue eshiywe kwindawo yokugqoka.Ukuba iglue isetyenziswe kancinci, iglue iya kuba yinkunkuma eninzi.I-zigzag scraper inzima njengoko injalo, kwaye iglue eshiywe yi-sawtooth ininzi.

2, Imiphezulu emibini edityanisiweyo ekufuneka idityaniswe kufuneka incamatheliswe kwicala elinye.

indlela yokugcina

Le mveliso kufuneka igcinwe kwindawo epholileyo kwaye emnyama ngexesha lokugcinwa.Ngokuqhelekileyo kwiindawo zokugcina iimpahla zangaphakathi, ixesha lokugcina ngunyaka omnye.Emva kokusetyenziswa kweglue nganye, i-barrel eneglue engaphezulu kufuneka ivalwe kwaye igcinwe, kwaye umaleko ophezulu weglue ulwelo luya kuqina kunye ne-crust ngenxa yokungena komswakama.Ukuba ayisetyenziswanga ixesha elide, kufuneka ivalwe ngenitrogen.