Kodi mabampu amapangidwa ndi chiyani: momwe mungadziwire nokha zinthuzo
Zamkatimu
Nthawi zambiri, zida za thermosetting zimagwiritsidwa ntchito ngati pulasitiki ya bumper pagalimoto. Sangathe kutambasulidwa kapena kusungunuka. Mwa izi, zogwiritsidwa ntchito makamaka zimapangidwira, zomwe zili mu chipinda cha injini pafupi ndi injini.
Ziwalo za thupi zodzikonza zokha zikawonongeka chifukwa cha ngozi kapena kuyendetsa magalimoto kwa nthawi yayitali, funso limakhala lofunikira kwa eni ake: ndi pulasitiki yanji yomwe mabampu amapangidwa ndi galimoto. Izi zidzafunika panthawi yokonza, kubwezeretsa ziwalo za thupi ndi manja anu.
Zida zomwe mabampu amagalimoto amapangidwira
Mitundu yamakono yamagalimoto ili ndi mabampa apulasitiki otsika mtengo. Zida za thupi zotere sizimadwala dzimbiri, zimatengera bwino kugwedezeka.
Chokhazikika pulasitiki bumper
Opanga makina amagwiritsa ntchito mapulasitiki a thermo- ndi thermoset.
Oyamba amasiyanitsidwa ndi chakuti chifukwa cha kutentha kwakukulu amayamba kusungunuka. Otsatirawa sali pansi pa izi, ndiye kuti, sasintha dziko lawo kutentha.
Chinthu choyenera kwambiri chomwe ma bumpers amapangidwa ndi thermoplastic, yomwe imasungunuka mosavuta, yomwe imalola dalaivala kukonzanso zida za thupi ngati pali zizindikiro zowonongeka kapena kuvala kwachilengedwe. The mankhwala madera aumitsa kachiwiri pambuyo kuzirala.
Nthawi zina zinthu za bumper yagalimoto zimakhala zosakanikirana ndi mapulasitiki. Mwa kuphatikiza mitundu yosiyanasiyana ya mapulasitiki, chinthu chatsopano, cholimba kwambiri komanso cholimba kwambiri chimapezeka, chomwe ma bumpers amapangidwa pamagalimoto. Kuti asinthe mawonekedwe agalimoto, oyendetsa galimoto nthawi zambiri amawongolera zida zamagulu: kutsogolo ndi kumbuyo. Luso lapamwamba pakusintha mawonekedwe agalimoto ndikudzipangira pawokha bumper ya pulasitiki yagalimoto. Izi zikhoza kuchitika pogwiritsa ntchito zipangizo zotchuka.
Polycarbonate
Polycarbonate ndi chinthu chomwe chilibe ma analogi pakati pa odziwika thermoplastics. Zinthuzo sizimakhudzidwa ndi nyengo. Katundu wake wamkulu ndi kukana chisanu. Makhalidwe ena:
- mphamvu;
- kusinthasintha;
- kuwala;
- kukana moto;
- kukhazikika.
Chophimba cha polycarbonate
Polycarbonate ili ndi katundu wotenthetsera kutentha kwambiri, pomwe kutentha kwambiri kwa ntchito kumayambira -40 mpaka 120 digiri Celsius.
galasi la fiberglass
Fiberglass imatanthawuza zinthu zophatikizika. Ndi yosavuta kukonza, kugonjetsedwa ndi kutentha kwambiri. Ndi fiberglass yopangidwa ndi utomoni. Ili ndi kukhazikika kwakukulu, komwe kumakhudza kumasuka kwa kukhazikitsa ndi kukhazikika pakugwira ntchito: kugunda malire kapena kukhudza mpanda mopepuka kumawononga gawo losalimba la zida za thupi. Panthawi imodzimodziyo, teknoloji yoyenera pamagulu awa iyenera kugwiritsidwa ntchito kuti ikonzedwe. Nthawi zina, gawolo liyenera kumamatidwa, kwina liyenera kuwotcherera.
Bomba la fiberglass
Chowonongeka cha fiberglass body element chingathe kukonzedwa motere:
- kuyeretsa ndi kutsuka pamwamba;
- sungani m'mphepete mwa ming'alu ndikuchotsa ulusi wotuluka wa zinthu ndi chopukusira;
- kulumikiza zinthu pamodzi ndikuzikonza ndi guluu;
- gwiritsani ntchito utomoni wa polyester ku ming'alu;
- ikani magalasi a fiberglass ophatikizidwa ndi guluu pakupuma;
- pambuyo pozizira, perani;
- putty malo opangira, degrease, prime mu zigawo zingapo;
- pentanso.
Pambuyo kukonza, tikulimbikitsidwa kuti musasambitse galimoto muzosamba zothamanga kwambiri kwa milungu ingapo.
Polypropylene
Pulasitiki yamtunduwu, yomwe imatchedwa "PP", ndiyo pulasitiki yodziwika kwambiri yopangira ma bumpers a galimoto - imakhala ndi kukana kwambiri, mphamvu komanso yoyenera kwambiri popanga zida zatsopano zamagalimoto.
Chophimba cha polypropylene
Zopangidwa kuchokera ku zinthu zotanukazi zimayamwa mphamvu: kuwonongeka kochepa kumatha kuchitika m'miyendo ya anthu akagundidwa. Pulasitiki ilibe kusamata bwino kuzinthu zina.
Momwe mungadziwire chomwe bumper yagalimoto imapangidwa
Kuti mukonze bwino zida za thupi zomwe zawonongeka, muyenera kudziwa mtundu wa zinthu zomwe muyenera kuthana nazo. Kuti muchite izi, pezani zilembo kumbuyo kwa gawo la pulasitiki.
Pakhoza kukhala kapena palibe code pa malonda. Zikatero, chitani zotsatirazi kuti mudziwe pulasitiki.
Dulani chingwe chopapatiza kuchokera pamalo osadziwika bwino. Iyeretseni ku utoto, dothi. Ikani pulasitiki "yopanda kanthu" mumtsuko wamadzi. Ngati chidutswa chodulidwa sichipita pansi, ndiye kuti muli ndi thermoplastic (PE, PP, + EPDM) - chinthu chomwe zida zambiri za thupi zimapangidwira. Mapulasitikiwa amayandama pamwamba pamadzi chifukwa kachulukidwe kawo kamakhala kochepera kamodzi. Zipangizo zokhala ndi mikhalidwe ina zimamira m'madzi.
Njira ina yodziwira kuti ndi yamtundu wina wa pulasitiki ndiyo kuyesa moto. Onani kukula kwa lawi, mtundu ndi mtundu wa utsi. Choncho, polypropylene imayaka ndi lawi la buluu, ndipo utsi uli ndi fungo lakuthwa, lokoma. Polyvinyl chloride ili ndi lawi lamoto; ikatenthedwa, chinthu chakuda, chonga malasha chimapangidwa. Mayesowa sapereka zotsatira zolondola chifukwa chakuti zinthuzo zimakhala ndi zowonjezera zosiyanasiyana.
