Kusiyana kwa Mphira Wachilengedwe ndi Kupanga Mphira Wopangidwa

Mfundo Zofunika Kwambiri

• Kusiyana kwenikweni ndi kubwerezabwereza, osati mankhwala: kufalikira kwa zinthu mkati ndiMayunitsi 8-12 a Mooney a rabara yachilengedwe poyerekeza ndi 3-5 MU ya SBR, NBR kapena EPDMkuchokera kwa wogulitsa m'modzi.
• Mphamvu yobiriwira imayendetsa dongosolo lanu lodulira ndi10-30 peresenti ya liwiro la chakudyapa geji yomweyo ya 0.5 mm, ndi silikoni kumapeto pang'ono.
• Kuchotsa madzi oundana (Cryogenic deflashing) pa-150 madigiri CelsiusZimaphimba polima iliyonse yodziwika bwino chifukwa kusintha kwa galasi kumayambira madigiri -125 mpaka madigiri -20 okha, koma kuwala kofewa kwa silicone kumachokera ku mphamvu ya mpweya yokha.
• Silicone ndi FKM nthawi zambiri zimafunaMadigiri 200-250 Celsius atachira kwa maola 4-24; rabara lachilengedwe nthawi zambiri limamalizidwa pambuyo popanikizidwa.

Yankho lalifupi:Rabala yachilengedwe ndi rabala yopangidwa ndi zinthu zosiyanasiyana zimasiyana pakupanga m'malo anayi omwe amawononga ndalama:Kugwirizana kwa batch pa good-in, mphamvu yobiriwira pa cutter, mawonekedwe a flash failure pa deflashing unit, komanso ngati gawolo likufunika kuchiritsidwa kwachiwiriRabala yachilengedwe imafalitsa mayunitsi 8-12 a Mooney pakati pa mabala koma imasunga mawonekedwe ake bwino, kotero kuti zopinga zodulira zimatha kuyenda mokulirapo. SBR, NBR, EPDM, FKM ndi silicone zimakhala zofanana koma zimakhala ndi mphamvu yobiriwira yochepa ndipo nthawi zambiri zimafuna madigiri 200-250 Celsius pambuyo pochira zomwe NR siimapempha.

Mzere wopanga sutaya ndalama mu labu ya chemistry. Umataya ndalama pamene mzere ukutambasula pansi pa cholembera chodyetsa, pamene misozi ikugwa m'malo mosweka, kapena pamene gulu la zinthu limachira mofulumira ndi 15 peresenti kuposa lomaliza. Bukuli likutsatira gawo kuyambira pakulowa m'zinthu mpaka pakulongedza ndipo limangosonyeza kusiyana komwe kumakakamiza kusintha kwa malo.

Kodi N’chiyani Chimasiyana Pakati pa Mphira Wachilengedwe ndi Wopangidwa?

Kusiyana komwe kumafika pa malo ogulitsira ndi kubwerezabwereza, osati kapangidwe ka mamolekyu.Rabala yachilengedwe ndi cis-1,4-polyisoprene yomwe imachotsedwa ku mitengo ya Hevea ndipo imayesedwa ndi dothi, phulusa ndi zinthu zosungunuka. Chifukwa sichimapangidwa kuti chigwirizane ndi cholinga, mumapeza chilichonse chomwe chimapangidwa nyengo yonse. Rabala yopangidwa, yomwe imagawidwa m'magulu ang'onoang'ono.ISO 1629ndi banja, imasinthidwa kukhala polimeri malinga ndi zomwe zafotokozedwa.

Popeza kuti cholowera chimodzi chimayikidwa m'magawo ndipo chinacho chimayikidwa m'magawo, NR imasintha makonda anu ndipo rabara yopangidwa imasintha zifukwa zanu.Kusagwirizana kumeneku kukufotokoza kusiyana kulikonse komwe kulipo pansipa.

Nchifukwa chiyani kusinthasintha kwa gulu kumasankha kulekerera kwanu kodula?

Chifukwa chakuti njira iliyonse yodulira yomwe mumagwiritsa ntchito ndi lingaliro la kukhuthala kwenikweni. A Makina odulira a rabara a CNCImasunga kulondola kwa chakudya cha 0.1 mm kapena kuchepera ndipo imadula makulidwe a 0-20 mm mpaka ma stroke 80 pamphindi, koma pokhapokha ngati chinthu cholowa mu tsamba chili ndi kuuma komwe kumaganiziridwa.

Rabala lachilengedwe liyenera kutsukidwa musanasakanizidwe, kotero limakufikirani ndi mbiri yodula yomwe imasiyana kwambiri ndi zambiri. Pazinthu zonse zomwe makasitomala amalemba, ma NR nthawi zambiri amafalitsa mayunitsi 8-12 a Mooney (ML 1+4 pa madigiri Celsius 100) pomwe ma SBR, NBR ndi EPDM amafalitsa 3-5 MU - zomwe ndi zomwe takumana nazo.

Kufalikira kwa MU 8-12 kumakhala pafupifupi 15-20 peresenti ya kuuma kwa compound., zokwanira kusintha momwe mzere umadyera, momwe umabwerera pambuyo pa tsamba, komanso ngati nkhope yodulidwayo ndi yozungulira kapena yong'ambika.

Ziwerengero zofalikira ndi zomwe timakumana nazo, osati malire a katalogi - ziwoneni poyang'ana zomwe mwapeza.

Kodi Mphira Wachilengedwe ndi Wopangidwa Umagawanika Kuti Pakuchotsa Flash?

Kugawanika kuli mu momwe flash imalepherera, osati kuchuluka kwake.Rabala lachilengedwe limasalala ndipo limang'ambika kukhala zingwe, SBR ndi NBR flash zimasweka, ndipo silicone flash ndi yofooka mokwanira kuti ichotsedwe.

Kuzizira ndiye chinthu chofanana ndi china chilichonse. Kusintha kwa galasi kumayambira pa -125 digiri Celsius ya silicone mpaka -20 digiri Celsius ya FKM, kotero amakina oyeretsera madzi a nayitrogeni cryogenic deflashingPa -150 digiri Celsius, zonsezi zimayikidwa pansi pa mfundo yofooka. Chipangizo chathu cha LN2 chimasunga 80 L ya voliyumu ya roller (15-20 kg ya zigawo zazing'ono) ndipo chimazungulira mkati mwa mphindi zosakwana 8 pa 20-70 RPM ndi chiwopsezo choposa 98 peresenti.

Cryo si njira yokhazikika. Flash yofewa, yopepuka pang'ono imabwera ndimakina opukutira mpweya pogwiritsa ntchito mphamvu ya pneumaticpamlingo wa pafupifupi 4 kg/min, chifukwaMukapanda kutero, mukanalipira nayitrogeni yamadzimadzi kuti mugwire ntchito yomwe mpweya wa theka la sekondi watha kale.. Yambani ndi zidutswa za zidutswa pa -80 digiri Celsius poyamba ndikutsika madigiri 10 nthawi imodzi; kutentha kwambiri komwe kumadutsabe mawonekedwe anu a flash ndi komwe kumasunga nayitrogeni.

Kodi Mafakitale Opangidwa Amafunika Kuchiritsidwa Kachiwiri?

Kawirikawiri inde, ndipo mphira wachilengedwe nthawi zambiri ayi.Kupopera kwa NR nthawi zambiri kumamalizidwa mkati mwa makina osindikizira. Silicone ndi FKM zimafunika kuchiritsidwa pambuyo pochotsa zinthu zofooka ndi kulumikiza kwathunthu, kapena kuuma ndi kukanikiza kumapitirira kuyenda ziwalozo zitayikidwa m'bokosi.

Chida choyenera ndiuvuni wozungulira wa vulcanization yachiwiri, osati kukanikiza kachiwiri. Zipangizo zathu za XCJ-K600 (600 L) ndi XCJ-K900 (900 L) zimayenda kuyambira kutentha kwa chipinda mpaka madigiri 280 Celsius pa chotenthetsera cha 10.5 kW, zimasuntha mpweya wa 3,000 CBM/H kudzera mu ng'oma ya octagonal kotero kuti malo aliwonse aziona kutentha komweko, ndikuvomereza nthawi iliyonse yochira kuyambira maola 0 mpaka 99.99.

Ikani mankhwala ochizira pambuyo pa chithandizo pa khadi lophikira m'malo mokumbukira munthu amene akuchizira.Nthawi yodziwika bwino ya maola 4 yomwe imasinthasintha kufika maola 6 imasintha kuuma ndi kupsinjika, ndipo chitetezo cha kutentha kwambiri chimakhalapo chifukwa chakuti FKM imayaka pambuyo pochira.

Kodi Kuchepa kwa Thupi Kumawononga Bwanji Kulekerera Kwanu Musanadule Chilichonse?

Kuchepa kwa fupa ndi komwe gawo lodulidwa bwino limakhala gawo lolakwika.Kuchepa kwa 1.5-4 peresenti kumatanthauza kuti kutalika kwa kudula kuyenera kugawidwa ndi chimodzi kupatulapo chithunzi cha shrinkage, osati kuyikidwa pamlingo wojambulira.ASTM D2000imakhazikitsa magulu olimba ndi olekerera koma osati kuchepa, kotero chiwerengerocho chiyenera kuchokera ku mayeso anu.

Pakuchepa kwa 3 peresenti, gasket yomalizidwa ya 50.0 mm imafunika kudula kwa 51.5 mm. Seti ya 50.0 mm ndipo gawolo lili kale ndi kukula kwa 1.5 mm musanayang'ane - cholakwika chomwe wogwiritsa ntchito sangathe kuchiwona ndipo kasitomala sangachilandire.

NR imasuntha ndi 1.5-3 peresenti ndipo imachepa kwambiri kudutsa tirigu kuposa momwe imakhalira, chifukwa unyolo umazungulira panthawi yopera. Silicone ndi FKM zimasuntha ndi 2-4 peresenti ndipo zimayankha kutentha kwambiri kuposa nthawi, kotero njira yomweyi pamakina osiyana imatha kugwera kunja kwa kulekerera.

Ndi Njira Yotani Yoyeretsera Yoyenerana ndi Polima Iti?

Gwirizanitsani chotsukiracho ndi chomwe pamwamba pake panyamula, osati ndi chomwe chapangidwa ndi gawolo.Ziwalo za NR zimafika zitaphikidwa ndi talc kapena sopo zomwe sizinyamula zinthu zopangidwa, ndipo NR imatupa m'madzi pomwe silicone siitero.

Themakina oyeretsera ndi kuumitsa a rabaraXCJ-QXJ 600 imagwiritsa ntchito ng'oma yosapanga dzimbiri ya 304 yokhala ndi mainchesi 600 ndi kutalika kwa 1,000 mm, imatenga 15-30 kg pa katundu aliyense ndipo imagwiritsa ntchito magulu atatu a magawo asanu ndi limodzi. Imagwiritsa ntchito 20 L/min ya madzi (0.1 tonnes pa kutsuka kwa mphindi 6) ndi 2.5 kWh kuti itsuke ndi kuuma kwa mphindi 20 pa 12 kW / 380 V, yokhala ndi ma nozzles ozungulira omwe sasiya malo obisika.

Pa NR, gwiritsani ntchito kutsuka kwaufupi kwambiri komwe kumachotsa fumbi, chifukwa kumiza kwa nthawi yayitali kumatupa gawolo mukaliyang'anitsitsa kale. Pa silicone, gawo lowonjezera limapeza malo ake: kutsuka kwa madzi okha kumasiya filimu yomwe pambuyo pake imawonekera ngati kulephera kwa mgwirizano pa intaneti ya kasitomala.

Kodi Mungakonze Bwanji Mzere wa Compound Yatsopano?

Yesetsaninso m'magawo asanu, ndipo musadumphe yoyamba.Ma switch ambiri olephera amalephera chifukwa palibe maziko omwe adalembedwa, kotero palibe amene angatsimikizire zomwe zidasintha.

1. Sungani zomwe zikubwera.Lembani kukhuthala kwa Mooney, kuuma kwake, mphamvu yake yokoka komanso nambala ya malo atatu musanagwire malo.
2. Dulaninso chinthu choyamba pa liwiro la chakudya katatu.Sungani yochedwa kwambiri yomwe imasunga kulekerera, chifukwa liwiro lowonjezera pa chinthu chobiriwira chocheperako limangogula zinyalala.
3. Pezani zenera losweka pa zidutswa.Yambani pa -80 digiri Celsius ndikutsika madigiri 10 mpaka kuwala kutuluke m'malo mong'ambika.
4. Yerekezeraninso kutalika kwa kudula kuchokera ku kuchepetsedwa komwe kwayesedwa.Yesani magawo asanu maola 24 mutachira, osati tsiku lomwelo, chifukwa kuchepa kwambiri kumachitika pawindo limenelo.
5. Lembani njira yodziwira matenda pambuyo pochira kwa woyang'anira.Chiŵerengero cha kukwera, kutentha kogwira, nthawi yogwira ndi kuzizira, zonse zinayi, osati malo okhawo omwe akhazikitsidwa.

Pomaliza: Ndi Zinthu Ziti Zomwe Muyenera Kuziyika Pamodzi?

Konzani zinthu zomwe mungayang'anire kuti zigwirizane ndi momwe mukufunira.Chopangidwa ndi mankhwala chokhala ndi ma MU atatu chimakupatsani mwayi wochita zinthu zolimbitsa thupi komanso kufufuza zinthu zochepa zoyambirira, zomwe zimakhala zamtengo wapatali kuposa mphamvu iliyonse yeniyeni. NR imapeza malo ake pomwe kulimba mtima ndi mphamvu ya kung'ambika ndikofunikira kuposa kubwerezabwereza - kenako mumagulanso kupirira ndi liwiro lochepa la chakudya komanso kutsuka kwakanthawi kochepa.

Kaya mumagwiritsa ntchito banja liti, zoikamo zimakhala mu makina, osati mu polima. Tumizani compound yanu, gauge ndi flash specifications ndipo tidzafanizirakuyeretsakapena kuchepetsa kukhazikika kwake.