Kukanganisika kwemavanga muchubhu inopisa inoramba ichikunguruka isina musono kunowanikwa mukati mepombi yesimbi, yakafanana negomba rekukura kwetsanga yesoya.Mavanga mazhinji ane grey-brown kana grey-black kunze kwenyika.Izvo zvinopesvedzera zvinhu zvemukati mavanga zvinosanganisira: deoxidizer, jekiseni process, mandrel lubrication uye zvimwe zvinhu.Ngatiteverei kabhoni simbi inogadzira chubhu kuti tione maitiro ekudzora mukati mehurema hwemachubhu esimbi asina musono:

1. Deoxidizer

Iyo oxide inodiwa kuti ive yakanyunguduka kana mandrel isati yaboorwa.Simba rayo uye nezvimwe zvakasimba zvinodiwa.

1) Iyo particle size ye deoxidizer poda inowanzodiwa kuve yakatenderedza 16 mesh.
2) Zviri mukati me sodium stearate mu scavenging agent inofanira kusvika kupfuura 12%, kuitira kuti inogona kupisa zvakakwana mu capillary lumen.
3) Sarudza kuwanda kwejekiseni ye deoxidizer maererano nepamusoro penzvimbo ye capillary, kazhinji 1.5-2.0g / dm2, uye chiyero che deoxidizer yakapfapfaidzwa ne capillary ine madhayamita akasiyana uye urefu hwakasiyana.

2. Injection process parameters

1) Kudzvanywa kwejekiseni kunofanirwa kufananidzwa nehupamhi uye kureba kwecapillary, iyo isingagone chete kuvhuvhuta kwakasimba uye kupisa kwakakwana, asi zvakare inodzivirira iyo isina kupiswa scavenger kubva kupeperetswa kubva kune capillary nemhepo inoyerera.
2) Nguva yekuchenesa yemugadziri wepombi yesimbi isina musono inofanirwa kugadziridzwa zvinoenderana nekunanga uye kureba kwecapillary, uye chiyero ndechekuti hapana yakamiswa simbi oxide mu capillary isati yaputika.
3) Kureba kwemhino kunofanirwa kugadziridzwa zvinoenderana necapillary dhayamita kuti ive nechokwadi chekuisa pakati.Iyo muromo inofanira kucheneswa kamwe chete shanduko, uye muromo unofanirwa kubviswa kuti ucheneswe mushure mekuvhara kwenguva refu.Kuti ive nechokwadi chekuti deoxidizing agent inovhuvhuta zvakaenzana pamadziro emukati mecapillary, mudziyo unosarudzika unoshandiswa pachiteshi pakufuridza deoxidizing agent, uye wakashongedzerwa nemhepo inotenderera.

3. Mandrel lubrication

Kana iyo lubrication mhedzisiro ye mandrel isiri yakanaka kana tembiricha ye mandrel lubricant yakadzikira, mavanga emukati achaitika.Kuti uwedzere tembiricha ye mandrel, nzira imwe chete yekutonhodza yemvura inotonhorera inogona kutorwa.Munguva yekugadzira, zvinodikanwa kunyatso kudzora tembiricha ye mandrel kuti ive nechokwadi chekuti tembiricha yepasi pemandrel iri 80-120 ° C usati wamwaya lubricant, uye tembiricha yemandrel haifanire kunge yakakwira kupfuura 120 ° C. kwenguva yakareba, kuitira kuti uve nechokwadi chokuti mafuta ari pamusoro akaoma uye akaoma asati atanga kuboora , Mushandi anofanira kugara achitarisa mamiriro ekugadzirisa mandrel.