Ob-tivthaiv polyurethane rau cov ntaub ntawv: ib tug txheej txheem cej luam, cov nta thiab xyuas

Ob-tivthaiv polyurethane yog ib tug polymer uas yog ua los ntawm ob cov khoom xyaw. Tus thawj ua isocyanate compound, thaum lub sij hawm thib ob compound tej zaum yuav ua tau ib tug hydroxyl pab pawg neeg. Lub ntsiab sib tham, lub resulting polymer yog tsim los ntawm ib tug polyurethane qauv.

polyurethane hom

Rau lub polymer yuav tsum tau muab cov curing neeg sawv cev thiab puag nyob rau hauv lub tsim nyog proportions. Ob-tivthaiv polyurethane tej zaum yuav sawv cev los ntawm variation ntawm tus mob khaub thuas thiab kub polymerization. Cov yav tas kev xaiv cov ntaub ntawv uas yuav tsum tau raug tus kab mob rau kom kub thaum lub sij hawm yav tas los yog polymerized ntawm tej yam ntuj tso kub.

Ntsiab nta

Lub piav ntaub ntawv no yog siv los tsim, muaj siab zog yam ntxwv, lawv yog resistant rau hostile kev kawm thiab teeb meem influences, raws li zoo raws li tsa kub. Tag nrho cov nta yog expanding cov uas ntawm kev siv ntawm polyurethane. Nws yog tsim rau zus tau tej cov:

• xim tsev;
• adhesives;
• sealants;
• varnishes.

Tom qab nws muaj pes tsawg leeg acquires zoo heev flowability, uas tso cai rau manufacture therefrom qhov chaw rau casting technology. Ib qho piv txwv yog faib lub tes tsho npaj. Nyob rau hauv no tsab xov xwm peb tham txog ib tug ob-tivthaiv polyurethane casting ntau ntau yam. Cov khoom zog yog txiav txim los ntawm tus thawj yam. Nyob rau hauv no tseem ceeb heev ib feem ntawm lub isocyanate hardener thiab puag.

ntxiv nta

Cov khoom zog tej zaum yuav txawv nyob ntawm seb qhov sib ntxiv ntawm ntau yam, xws li fillers thiab dyes. Ib txhia polyurethanes hloov lub roj hmab, vim hais tias yus muaj los ntawm siab elasticity. Polyurethanes yuav pom tias muaj peev xwm sawv ntawm es nws yeej zoo vim txhua yam kev puas tsuaj, uas ua rau lawv tshwj xeeb tseem ceeb nyob rau hauv lub lag luam.

Txheej txheem cej luam ntawm thaj chaw siv

Ob-tivthaiv polyurethane pom coob leej ntau tus niaj hnub no. Khoom siv rau qhov siv thiab ua hniav nyiaj hniav kub, ntawm txawv mechanisms thiab castings zog. Cov kev ua tau thaj chaw ntawm lub resulting qhov chaw yog heev. Qhov no pub rau cov kev siv ntawm cov khoom nyob rau hauv txawm mob hnyav. Raws li ib tug tshwm sim, tsis tau muaj nyiaj ntiav tus khov, nyuaj thiab sib resistant Cheebtsam. Raws li tus tom kawg yuav tsum:

• iav;
• ntoo;
• Pulleys;
• log;
• chais;
• toothed koj cov menyuam;
• sealing hais;
• Ntau yam kev tiv thaiv coatings;
• clutch;
• pipelines;
• Paub meej ntawm bearings;
• lub tes tsho.

Paub meej yog txaus siab pab raws li ib tug siab zoo thiab ntev, vim hais tias lawv yog resistant rau hnav thiab mas check. Kua ob-tivthaiv elastic polyurethane ntaub ntawv lub hauv paus ntawm lub log rau cov tsheb thauj khoom thiab forklifts. Raws li ib tug tshwm sim, cov khoom yuav tsum tau, uas yog ntau npaum li cas check dua roj hmab. Lawv yog cov npaj txhij mus ua hauj lwm txawm tias thaum lub tsuj taw kev puas tsuaj.

Cov khoom yog lub hauv paus txoj kev txhawb nqa thiab qhia chais, uas yog siv nyob rau hauv ua ke nrog rau cov conveyor siv thiab cov conveyor. Lub ntsiab yog npaj txhij mus ua hauj lwm ntev npaum li cas tshaj roj hmab siv kis tau tus mob, kev thiab kev.

Cov khoom siv rau lub damper thiab kev khi ntsiab, vim hais tias nws muaj ib tug ntau dua kuj hnav thiab durability. Uas yog vim li cas cov roj hmab qhov chaw nyob rau hauv xyoo tsis ntev los ntau thiab ntau ntau hloov los ntawm polyurethane. Yooj nyob rau hauv cov ntaub ntawv no tseem nyob rau ntawm tib theem. Ob-tivthaiv polyurethane molding tau pom daim ntawv thov nyob rau hauv qhov siv thiab ua cov kav dej, uas yog yus muaj los ntawm lub dag lub zog thiab tshuaj kuj. Hais yog tau nyob rau hauv ib tug piece. Tsis tas li ntawd, siv ib tug ntaub ntawv uas yuav tsis tau tsuas yog tiv thaiv pipelines los ntawm lub sab hauv, tab sis kuj nyob nraum zoov.

Xyuas ntawm lwm qhov chaw ntxiv ntawm qhov kev siv

Raws li tau txais kev pab, ob-tivthaiv polyurethane yog siv nyob rau hauv qhuav ntawm adhesives thiab xim tsev thiab varnishes. Cov sib tov tau tom qab polymerization resistant mus rau sab nraud raug nyiaj, nrees tuav thiab npaj txhij mus ua hauj lwm rau ib ntev lub sij hawm. Cov kua polyurethane yog siv tshwj xeeb tshaj yog nyob rau hauv qhov siv thiab ua cov ntaub ntawv, uas yog tau ua los ntawm casting technology. Tom qab, cov khoom uas yog siv rau casting:

• qhob;
• polyester resins;
• siv quav ciab;
• gypsum.

Los ntawm cov lus uas tus tau txais kev pab, ib tug kua ob-tivthaiv polyurethane yog siv kuj nyob rau hauv lub teb ntawm cov tshuaj, nyob qhov twg cov ntaub ntawv uas yog lub hauv paus rau cov hniav yas. Polyurethane yog siv ntau tshaj thiab hniav nyiaj hniav kub raug. Los ntawm no nws yuav txawm yuav nchuav cov plag tsev, uas yog yus muaj los ntawm check, resistant rau hnav thiab siab kuj mus loads.

Raws li tau txais kev pab nyob rau hauv ib co chaw ntawm polyurethane qhov chaw yog superior rau steel rau ib tug xov tooj ntawm tsis. Txawm li cas los, cov tsim txoj kev yog yooj yim npaum li, uas tso cai rau kom tau nyob rau ntawm qhov tso zis ntawm tej yam me me Cheebtsam thiab loj heev castings, thawj uas tej zaum yuav hnyav tsis muaj ntau tshaj li ib tug kab, thaum lub caij nyoog kawg no tej zaum yuav muaj ib tug loj ntawm 500 kg thiab tshaj.

Yog xav paub ntxiv nyob rau hauv polyurethane rau tuaj pwm

Ob-tivthaiv polyurethane ua yam pwm tuaj yeem mas ib tug tej yam muaj pes tsawg tus ntawm castings. Yog hais tias peb yuav sib tham txog tib yam nyiaj muas, cov cam khwb cia pob zeb yuav nqa tawm yam tsawg 1,200 lub sij hawm. Yog hais tias nyob rau hauv tus txheej txheem ntawm ntau lawm daim ntawv siv qhov zoo tshaj plaws cov ntaub ntawv thiab cov ntawv uas cov cov kev npaj ntawm sib tov tau lawm, ces daim ntawv yuav tsum npaj kom txhij los mus tiv mus txog 4,000 castings. Qhov no muaj tseeb txawm rau rooj plaub thaum tus duab twb paub tseeb hais tias los ntawm lub tshuab nqus tsev ua, raws li tau zoo raws li siv rau filling yog tsis heev abrasive, corrosive thiab nplaum cov ntaub ntawv.

Saib cov kab kev los ntawm lub thoob ntiaj teb kev ua lag luam, koj yuav tau to taub hais tias lub polyurethane hnub no yog sawv cev los ntawm ntau hom, highlight ntawm lawv:

• vulkopreny;
• Vulkollan;
• adipreny;
• poramoldy.

Yog hais tias koj xav tau ib tug Lavxias teb sab hom, koj yuav tsum xaiv lub sic-PU 5, SKU-PFL-100. Lawv yog ua los ntawm polyester domestic ntau lawm, tab sis qhov zoo yog tsis zuj zus tshaj lawv txawv teb chaws counterparts. Ntxiv mus, lawv yog ua nyob rau hauv ib co respects.

Hom polyurethane txawv nyob rau hauv cov tshuaj muaj pes tsawg leeg, tus nqi ntawm cov urethane pawg, tsim kho ntawm lub polymer chains thiab cov molecular yuag khoom. Properties yuav tswj tau los ntawm ceev faj xaiv ntawm raw khoom. Cov yuav tau hlau thiab branched saw polymers.

Additives rau polyurethane ntaub ntawv

Ob-tivthaiv polyurethane rau cov ntaub ntawv tej zaum yuav supplemented los ntawm ntau yam tshuaj, namely:

• modifiers;
• fillers;
• dyes.

Lawv yuav tsum tau los txhim kho qhov zoo ntawm cov muaj pes tsawg leeg. Piv txwv li, rau leeb cov tshuaj tiv thaiv modifiers siv, uas yog ntxiv nyob rau hauv daim me me. Nrog kev xav txog cov pigments, lawv yuav tau mus hloov qhov zoo ntawm lub caij txoj kev ntawm cov xim kho. Nyob rau hauv thiaj li yuav txo cov yas ntsiab lus, fillers yog siv uas tso cai rau ntau thiab pheej yig dua cov khoom.

Cam tej zaum yuav:

• talc;
• chalk;
• carbon dub;
• tshuaj, iav, carbon fibers.

Txawm li cas los, qhov no daim ntawv teev yuav tsis muab suav hais tias tag nrho. Polyurethane daim ntawv rau pob zeb muaj xim ntxoov los ntawm lub teeb daj los xim av. Yog hais tias kev siv ntawm tshwj xeeb additives, nws yog ua tau kom tau yuav luag txhua xim.

xaus

Polyurethanes hnub no tau thov nyob rau hauv yuav luag tag nrho cov cheeb tsam ntawm kev lag luam. Ntau cov ntaub ntawv uas yog siv nyob rau hauv lub neej txhua hnub. Raws li ib tug ntawm cov pheej chaw ua kua bicomponent polyurethane. Nws siv yooj yim zog thiab speeded li ua hauj lwm rau lub casting ntawm vaj tse thiab plaster. Nrog kev pab los ntawm polyurethane ua tau zus tau tej cov me me architectural cov ntaub ntawv, paving thiab hniav ntsiab, txawm nyob rau hauv lub tsev.