1.Kuchenesa kwepurasitiki
Tsanangudzo yePlasitiki: Chiitiko chekuchinja kwerabha kubva kune elastic kuita chinhu chepurasitiki pasi pesimba rekunze zvinhu chinonzi plasticization.
(1)Chinangwa cheKunatsa
a.Ita kuti rabha yakasvibira iwane imwe dhigirii yepurasitiki, yakakodzera kune inotevera nhanho yekusanganisa uye mamwe maitiro
b.Batanidza iyo plasticity yerabha mbishi uye ive nechokwadi kunyangwe mhando yezvinhu zverabha
(2)Kutsunga kwemusanganiswa wepurasitiki unodiwa: Mooney pamusoro pe60 (theoretical) Mooney pamusoro pe90 (chaiyo)
(3)Plastic refining muchina:
a. Vhura chigayo
Zvimiro: Kunyanya kushanda nesimba, kuderera kwekugadzirwa kwemagetsi, kusashanda zvakanaka kwemamiriro ezvinhu, asi inoshanduka, ine mari shoma, uye inokodzera mamiriro ezvinhu ane shanduko dzakawanda The speed ratio yemadhiramu maviri eguyo rakashama: mberi neshure (1:1.15) -1.27)
Nzira dzekushanda: Yakaonda kupfuura mapurasitiki ekunatsa nzira, roll kuputira epurasitiki yekunatsa nzira, yekukwira furemu nzira, kemikari plasticizer nzira.
Nguva yekushanda: Nguva yekuumba haifaniri kudarika maminitsi makumi maviri, uye nguva yekupaka inofanira kuva maawa 4-8.
b.Musanganisi wemukati
Zvimiro: Kubudirira kwekugadzirwa kwepamusoro, kushanda kuri nyore, kushomeka kwevashandi, uye plastiki yakafanana. Nekudaro, tembiricha yakakwira inogona kukonzera kuderera kwemuviri uye mechanical zvinhu zverubha zvinhu
Nzira yekushandisa: Kuyera → Kudyisa → Kuisa Purasitiki → Kuburitsa → Kudzosera kumashure → Kudzvanya → Kutonhodza uye kuburutsa → Kuchengeta
Nguva yekushanda: 10-15 maminitsi Nguva yekupaka: 4-6 maawa
(4)Nguva dzose plasticized rabha
Rubber zvinhu zvinowanzoda kuumbwa zvinosanganisira NR, hard NBR, hard rabber, uye zviya zvine Mooney rating ye90 kana pamusoro.
2.Kusanganisa
Tsanangudzo yekusanganisa ndeyekuwedzera zvakasiyana-siyana zvekuwedzera kune rubber kuita rubber yakasanganiswa
(1)Vhura musanganisi wekusanganisa
a.Kupeta roller: Putira rabha yakasvibirira pane yekumberi roller uye uve nepfupi preheating process ye3-5 maminetsi.
b.Maitiro ekudya: Wedzera izvo zvinowedzera zvinoda kuwedzerwa mune imwe hurongwa. Paunenge uchiwedzera, teerera kune huwandu hweglue yakaunganidzwa. Zvishoma zvakaoma kusanganisa, nepo zvakawanda zvinokunguruka uye zvisiri nyore kusanganisa
Kudyisa kutevedzana: rabha mbishi → inoshanda mumiriri, yekugadzira rubatsiro → sarufa → kuzadza, inopfavisa mumiriri, inoparadzira → kugadzirisa rubatsiro → accelerator
c.Maitiro ekunatsa: anogona kusanganisa zvirinani, nekukurumidza, uye zvakanyanya zvakaenzana
Nzira yebanga: a. Nzira yebanga rakarereka (nzira yebanga sere) b. Triangle kuputira nzira c. Kumonyorora nzira yekushanda d. Gluing nzira ( nzira yekufamba banga)
d.Nzira yekuverenga huwandu hwekurodha hweguyo rakavhurika ndeye V=0.0065 * D * L, apo V - vhoriyamu D ndiyo dhayamita yerori (cm) uye L ndiyo kureba kwerori (cm)
e.Kupisa kweiyo roller: 50-60 degrees
f.Kusanganisa nguva: Hapana yakatarwa mutemo, zvinoenderana nehunyanzvi hwemushandisi
(2)Musanganiswa wemukati:
a.Imwe nhanho yekusanganisa: Mushure mechikamu chimwe chekusanganisa, maitiro ekusanganisa ndeanotevera: rabha mbishi → diki zvinhu → inosimbisa mumiriri → munyoro → kuburitsa rabha → kuwedzera sarufa uye accelerator kune piritsi rekudhinda → kuburitsa → kutonhora uye kupaka
b.Danho rechipiri kusanganisa: Kusanganisa mumatanho maviri. Nhanho yekutanga irabha mbishi → zvinhu zvidiki → inosimbisa mumiriri → munyoro → kuburitsa rabha → kudzvanya piritsi → kutonhora. Nhanho yechipiri irabha raamai → sarufa uye accelerator → kudzvanya piritsi → kutonhora
(3)Nyaya dzemhando dzakajairika nerabha yakasanganiswa
a.Compound agglomeration
Zvikonzero zvikuru ndezvi: kusakwana kunatswa kwerabha raw; Yakawandisa roller pitch; Kunyanya kunama simba; Kunyanya kupisa tembiricha; Mushonga wehupfu une zvimedu zvakakora kana masumbu;
b.Kuwedzeredza kana kusakwana kwakananga giravhiti kana kugovera kusina kuenzana
Chikonzero: Huremu husina kunaka hwemumiriri wemusanganisi, kusanganisa kwakashata, kusiiwa, kuwedzera kwakashata kana kusiiwa panguva yekusanganisa.
c.Mwaya chando
Kunyanya nekuda kwekushandiswa kwakanyanya kwezvimwe zvinowedzera, izvo zvinopfuura kunyungudika kwavo murubha pakupisa kwekamuri. Kana kuzara kuchena kwakawanda, zvinhu zvichena zvinozopfapfaidzwa zvakare, izvo zvinodaidzwa kuti poda spraying
d.Kuoma kwakanyanya, kuderera, kusaenzana
Chikonzero chacho ndechekuti kuyerwa kwevamiririri vevulcanizing, accelerators, softeners, reinforcing agents, uye raw raw haina kururama, uye inokonzerwa nekuwedzera kusina kururama kana kupotsa, zvichikonzera kusawirirana kusina kufanana uye kuoma kusina kufanana.
e.Kupisa: Iyo yekutanga vulcanization chiitiko chezvigadzirwa zverubha
Chikonzero: Kusanganiswa kusina kunaka kwezvinowedzera; Kushanda kwerubha kusanganisa kusina kunaka; Kutonhora kusina kunaka uye kupaka; Kukanganisa kwemamiriro ekunze, nezvimwewo
3.Sulfurization
(1)Kushomeka kwezvinhu
a.Mhepo iri pakati pe mold nerabha haigone kuburitswa
b.Kurema kusina kukwana
c.Kusakwana kudzvinyirira
d.Kushaikwa kwemvura yerubha zvinhu
e.Kunyanya kupisa mold uye yakatsva rubber material
f.Kupisa kwekutanga kwerubber material (yakafa)
g.Kusakwana zvinhu ukobvu uye kusakwana kuyerera
(2)Bubbles uye pores
a.Kusakwana vulcanization
b.Kusakwana kudzvinyirira
c.Kusachena kana kusvibiswa kwemafuta mu mold kana rubber material
d.The vulcanization mold tembiricha yakanyanya
e.Yakanyanya kudiki vulcanizing mumiriri yakawedzerwa, iyo vulcanization yekumhanyisa inononoka
(3)Ganda rinorema uye kuputika
a.Iyo vulcanization yekumhanyisa inokurumidza, uye kuyerera kwerabha hakuna kukwana
b.Tsvina molds kana mavara anonamira
c.Kunyanya kuzviparadzanisa nevamwe kana kuburitsa mumiririri
d.Kusakwana ukobvu hwekunamatira zvinhu
(4)Kuputika kwechigadzirwa
a.Kunyanya kupisa kwe mold kana kugara kwenguva refu sulfur
b.Yakawandisa dosage ye vulcanizing agent
c.Nzira yekudzikisa haina kunaka
(5)Zvakaoma kugadzirisa
a.Kusimba kwekubvarura kwechigadzirwa kwakanyanya kunaka (senge yakakwira tensile adhesive). Iyi yakaoma kugadzirisa inoratidzwa nekusakwanisa kubvarura maburrs
b.Kusimba kwechigadzirwa kwakanyanyisa, kunoratidzwa se brittle edges, iyo inogona kubvarura chigadzirwa pamwe chete
Nguva yekutumira: Kubvumbi-16-2024
