Imiba emininzi ekuqhutyweni kwezinto ezixutywe zerabha

Izizathu eziphambili zokuvela kwe "self sulfure" ngexesha lokubekwa kwezinto ezixutywe zerabha zezi:

(1) Zininzi kakhulu ii-agent ezitshabalalisayo kunye ne-accelerator ezisetyenziswayo;

(2) Umthamo omkhulu wokulayisha irabha, ubushushu obuphezulu bomatshini wokusulungekisa irabha, ukupholisa kwefilimu okungonelanga;

(3) Okanye ukongeza isulfure kwangoko kakhulu, ukusasazwa okungalinganiyo kwemathiriyeli yeyeza kubangela ukugcwala kwendawo ye-accelerator kunye nesalfure;

(4) Indawo yokupaka engafanelekanga, efana nobushushu obugqithisileyo kunye nokungahambi kakuhle komoya kwindawo yokupaka.

Indlela yokunciphisa umlinganiselo weMoney we-rubber blends?

I-Mooney ye-rubber blend yi-M (1 + 4), oku kuthetha ukuba i-torque efunekayo ukutshisa kwi-degrees ze-100 ngomzuzu we-1 kwaye ijikeleze i-rotor yemizuzu ye-4, ubukhulu begunya elithintela ukujikeleza kwe-rotor. Nawaphi na amandla anokunciphisa ukujikeleza kwe-rotor kunokunciphisa uMooney. Ifomula imathiriyeli ekrwada ibandakanya irabha yendalo kunye nerabha yokwenziwa. Ukukhetha irabha yendalo kunye neMooney ephantsi okanye ukongeza iiplastiki zeplastiki kwi-raber formula yendalo (i-plasticizers ebonakalayo ayisebenzi) yinto efanelekileyo. Irabha yokwenziwa ngokubanzi ayizongezi iiplasticizers, kodwa isenokongeza amanqatha amancinci abizwa ngokuba zii-dispersants okanye iiarhente zokukhupha zangaphakathi. Ukuba iimfuno zobunzima azingqongqo, ngokuqinisekileyo, inani le-stearic acid okanye ioli inokunyuswa; Ukuba kwinkqubo, uxinzelelo lwe-bolt oluphezulu lunokwandiswa okanye ukushisa kokukhutshwa kungandiswa ngokufanelekileyo. Ukuba iimeko ziyavuma, ubushushu bamanzi okupholisa bunokuthotywa, kwaye iMooney yomxube werabha inokuthotywa.

Izinto ezichaphazela umphumo wokuxuba womxube wangaphakathi

Xa kuthelekiswa nokuxuba okuvulekileyo kwe-mill, ukuxuba umxube wangaphakathi kuneenzuzo zexesha elifutshane lokuxuba, ukusebenza kakuhle, iqondo eliphezulu lomatshini kunye ne-automation, umgangatho omhle we-rubber we-rubber, ubuninzi bomsebenzi ophantsi, ukusebenza ngokukhuselekileyo, ilahleko encinci yokubhabha kweziyobisi, kunye neemeko ezilungileyo zokucoceka kwendalo. Nangona kunjalo, ukutshatyalaliswa kobushushu kwigumbi lokuxuba lomxube wangaphakathi kunzima, kwaye ubushushu bokuxuba buphezulu kwaye kunzima ukulawula, obunciphisa ubushushu bezinto zerabha ezibuthathaka kwaye ayifanelekanga ukuxuba izinto zerabha ezinombala okhanyayo kunye nezixhobo zerabha ezinokwahluka rhoqo. utshintsho. Ukongeza, umxubi wangaphakathi kufuneka axhotyiswe ngezixhobo ezihambelanayo zokukhulula ukuxuba.

(1) Umthamo wokulayishwa kweglue

Isixa esifanelekileyo seglue kufuneka siqinisekise ukuba izinto zerabha zixhomekeke kwi-friction ephezulu kunye ne-shear kwigumbi lokuxuba, ukwenzela ukuba ukusabalalisa ngokulinganayo i-ejenti yokuxuba. Ubungakanani beglue efakwe kuxhomekeke kwiimpawu zezixhobo kunye neempawu zezinto zeglue. Ngokuqhelekileyo, ukubala kusekelwe kumthamo opheleleyo wegumbi lokuxuba kunye ne-coefficient yokuzalisa, kunye ne-coefficient yokuzalisa ukusuka kwi-0.55 ukuya kwi-0.75. Ukuba izixhobo zisetyenziselwa ixesha elide, ngenxa yokugqoka kunye nokukrazula kwigumbi lokuxuba, i-coefficient yokuzalisa inokumiselwa kwixabiso eliphezulu, kwaye inani leglue linganyuswa. Ukuba uxinzelelo lwe-bolt oluphezulu luphezulu okanye iplastiki yezinto ezinamathele ziphezulu, inani lokubambelela linokunyuswa ngokufanelekileyo.

(2) Uxinzelelo lwebholiti ephezulu

Ngokwandisa uxinzelelo lwe-bolt ephezulu, kungekhona nje ukuba umthamo wokulayisha werabha unokunyuswa, kodwa kunye noqhagamshelwano kunye noxinzelelo phakathi kwezinto zerabha kunye nezixhobo, kunye naphakathi kwamacandelo ahlukeneyo ngaphakathi kwezinto zerabha, kunokukhawuleza kwaye ukusebenza ngakumbi, ukukhawuleza inkqubo yokuxuba i-agent edibeneyo kwi-rubber, ngaloo ndlela inciphisa ixesha lokuxuba kunye nokuphucula ukusebenza kakuhle kwemveliso. Kwangaxeshanye, inokunciphisa ukutyibilika kwesixhobo kwindawo yokunxibelelana yezixhobo, yandise uxinzelelo lwe-shear kwizinto zerabha, iphucule ukusasazwa kwe-agent edibeneyo, kunye nokuphucula umgangatho wezinto zerabha. Ngako oko, okwangoku, amanyathelo afana nokunyusa ububanzi bombhobho womoya ophezulu okanye ukwandisa uxinzelelo lomoya luhlala luthathwa ukuze kuphuculwe ukusebenza kakuhle kokuxuba kunye nomgangatho werabha edibeneyo kumxube wangaphakathi.

(3) Isantya se-rotor kunye nesakhiwo se-rotor shape

Ngethuba lenkqubo yokuxuba, isantya se-shear se-rubber sihambelana ngokuthe ngqo nesantya se-rotor. Ukuphucula isantya se-shear yezinto zerubha kunokunciphisa ixesha lokuxuba kwaye ngumlinganiselo oyintloko wokuphucula ukusebenza kakuhle komxube wangaphakathi. Okwangoku, isantya somxube wangaphakathi sandisiwe ukusuka kwi-20r / min yasekuqaleni ukuya kwi-40r / min, 60r / min, kwaye ukuya kwi-80r / min, ukunciphisa umjikelezo wokuxuba ukusuka kwi-12-15 min ukuya kweyona mfutshane ye-l-1.5 imiz. Kwiminyaka yakutshanje, ukuhlangabezana neemfuno zetekhnoloji yokuxuba, i-multi-speed okanye i-speed speed mixers yangaphakathi isetyenziselwe ukuxuba. Isantya sinokutshintshwa nangaliphi na ixesha ngokweempawu zerubha kunye neemfuno zenkqubo ukufezekisa umphumo ongcono wokuxuba. Ubume besakhiwo se-rotor yokuxuba yangaphakathi inempembelelo ebalulekileyo kwinkqubo yokuxuba. Iiprotrusions ze-elliptical rotor yomxube wangaphakathi ziye zanda ukusuka ezimbini ukuya kwezine, ezinokudlala indima esebenzayo ekuxubeni i-shear. Inokuphucula ukusebenza kakuhle kwemveliso nge-25-30% kunye nokunciphisa ukusetyenziswa kwamandla. Kwiminyaka yakutshanje, ukongeza kwiimilo ze-elliptical, abaxube bangaphakathi abaneemilo ze-rotor ezifana nonxantathu kunye neesilinda ziye zasetyenziswa kwimveliso.

(4) Ukuxuba ubushushu

Ngethuba lenkqubo yokuxuba umxube wangaphakathi, kukho ubushushu obukhulu obuveliswayo, okwenza kube nzima ukukhupha ukushisa. Ngoko ke, izinto zerabha zitshisa ngokukhawuleza kwaye zineqondo lokushisa eliphezulu. Ngokuqhelekileyo, iqondo lokushisa lokuxuba livela kwi-100 ukuya kwi-130 ℃, kunye nokuxuba okuphezulu kweqondo lokushisa kwi-170 ukuya kwi-190 ℃ kukwasetyenziswa. Le nkqubo isetyenziswe ekuxubeni irabha yokwenziwa. Ukushisa okukhupha ngexesha lokuxuba okucothayo kulawulwa ngokubanzi kwi-125 ukuya kwi-135 ℃, kwaye ngexesha lokuxuba ngokukhawuleza, ubushushu bokukhutshwa bunokufikelela kwi-160 ℃ okanye ngaphezulu. Ukuxuba kunye nokushisa okuphezulu kakhulu kuya kunciphisa isenzo se-chear mechanical kwi-rubber compound, okwenza ukuxuba ukungalingani, kwaye kuya kuqinisa ukuqhekeka kwe-oxidative ye-oxidative yeemolekyuli zerabha, ukunciphisa iimpawu ezibonakalayo kunye nomatshini we-rubber compound. Kwangaxeshanye, iyakuphinda ibangele imichiza ebophelelayo kakhulu phakathi kwerabha kunye nekhabhoni emnyama ukuvelisa ijeli eninzi kakhulu, kuncitshiswe idigri yeplastiki yekhompawundi yerabha, yenze umphezulu werabha ube rhabaxa, obangela ubunzima kwi-calendering kunye ne-extrusion.

(5) Ulandelelwano lwethamo

Ikhompawundi yePlastiki kunye nekhompawundi kamama kufuneka yongezwe kuqala ukwenza yonke, kwaye ke ezinye ii-agent ezixubileyo kufuneka zongezwe ngokulandelelana. Izithambiso eziqinileyo kunye neziyobisi ezincinci zongezwa ngaphambi kokuba zongeze izihluzi ezifana nekhabhoni emnyama ukuqinisekisa ixesha elaneleyo lokuxuba. Izithambisi zolwelo kufuneka zongezwe emva kokufaka ikhabhoni emnyama ukunqanda i-agglomeration kunye nobunzima bokusasazwa; I-accelerators ephezulu kunye nesulfure zongezwa emva kokupholisa kumatshini wepleyiti esezantsi, okanye kwi-mixer yangaphakathi ngexesha lokuxuba okwesibini, kodwa ubushushu babo bokukhupha kufuneka bulawuleke ngaphantsi kwe-100 ℃.

(6) Ukuxuba ixesha

Ixesha lokuxuba lixhomekeke kwizinto ezahlukeneyo ezifana neempawu zokusebenza zomxube, inani lerabha elayishiweyo, kunye nefomula yezinto zerabha. Ukwandisa ixesha lokuxuba kunokuphucula ukusasazeka kwe-ejenti yokudibanisa, kodwa ixesha elide lokuxuba linokukhokelela ngokulula ekuxubeni kunye nokuchaphazela iimpawu ze-vulcanization zezinto zerabha. Okwangoku, ixesha lokuxuba i-XM-250/20 yomxube wangaphakathi yimizuzu eyi-10-12.