iindaba

Ukuhlolwa komgangatho weiikhompawundi zokubumba ze-phenolic(yenziwe nge-phenolic resin matrix enezihluzi ezongeziweyo, ii-curing agents, ii-lubricants, njl.njl., ezisetyenziselwa ikakhulu ukubumba ucinezelo) kufuneka zigubungele ubukhulu obuphakathi kuquka inkangeleko, ukusebenza kokucubungula, iipropati zomzimba nezoomatshini, iipropati zobushushu, kunye nokumelana neekhemikhali ukuqinisekisa ukuthotyelwa kweemfuno zokubumba kunye nokusebenza kwemveliso. Izinto ezithile zokuhlola kunye nezinto ekufuneka ziqwalaselwe zezi zilandelayo:

Inkangeleko esisiseko kunye nokuhlolwa koMgangatho oBonakalayo

Inkangeleko isebenza njengesalathisi esibonakalayo sovavanyo lomgangatho wokuqala, esibonisa ngokuthe ngqo ukufana kokuxuba izinto ezikrwada kunye nokufakwa kweepellet (okanye ukulungiswa komgubo) ngexesha lokuveliswa. Izinto ezithile zokuhlola ziquka:

Umbala kunye nokufana

Imfuneko: Iimveliso ezikwiqela elinye kufuneka zibonise umbala ofanayo ngaphandle komahluko obonakalayo wombala (onokungqinisiswa ngokuthelekisa okubonakalayo kwiitshathi zemibala eziqhelekileyo okanye umlinganiselo wobungakanani kusetyenziswa imitha yomahluko wombala).

Ukubaluleka: Ukwahluka kombala kunokubangelwa kukwahluka kwe-resin batch, ukusasazeka kwe-filler okungalinganiyo, okanye ukuguquguquka kobushushu bokucubungula, okuchaphazela ukufana okubonakalayo kwemveliso yokugqibela.

Imeko yeGranule/Powder

Iigranules: Hlola imo engqukuva, ukungabikho kwe-agglomeration okanye ukwaphuka (izinga lokuqhekeka kufuneka libe yi-≤ ixabiso elichaziweyo, ngesiqhelo i-≤3%), kunye nokusasazwa kobungakanani bezinto ezifanayo (kunokuqinisekiswa ngohlalutyo oluqhelekileyo lwesihluzo; umz., ipesenti ye-mesh engama-20-60 kufuneka ihlangabezane nemigangatho yenkampani).

Umgubo: Awunaziqhuma kunye nezinto zangaphandle (umz., ukungcola kwesinyithi, iziqwenga zefayibha). Vavanya usebenzisa isikrini se-100-mesh; intsalela kufuneka ibe yi-≤0.5%.

Ukungcola kunye neziphene

Hlola ngamehlo okanye ngeglasi yokukhulisa. Ukungcola okufana neentsimbi ezisikiweyo, amatye, okanye iziqwenga ze-resin ezingasasazekanga akuvumelekanga. Imiphezulu ye-granule/yomgubo mayingabi namabala eoyile okanye amabala okubola (ukuthintela amaqamza okanye ukuqhekeka ngexesha lokubumba).

Uvavanyo Lokusebenza Olucwangcisiweyo

Ukusebenza kokucubungula kwee-phenolic molding compounds kumisela ngokuthe ngqo ukulula koxinzelelo kunye nesantya semveliso. Izinto zovavanyo oluphambili ziquka:

1. Ukukwazi ukuhamba kwamanzi (Iimpawu zokuNcibilika koMbane)

Indlela yoVavanyo: Ngokwesiqhelo indlela yobude bokuhamba komoya (nge-GB/T 14049-2008 “Iikhompawundi zokubumba zePhenolic"). Faka i-molding compound kwi-spiral mold kubushushu obuchaziweyo (umz., 160-180°C) kunye noxinzelelo (umz., 5-10 MPa), uze ulinganise ubude be-spiral eyenziwe kukunyibilika okuhambayo.

Iikhrayitheriya zokugweba: Ukuphambuka kobude bokuhamba kwamanzi ngaphakathi kwebhetshi enye kufuneka kube yi-≤±10%. Amaxabiso athile afanele ahambelane nolwakhiwo lwemveliso (iimveliso ezintsonkothileyo ezinodonga oluncinci zifuna ukuhamba kwamanzi okuphezulu, ngelixa iimveliso ezinodonga oluqinileyo zifuna ukuhamba kwamanzi okuphakathi ukuthintela ukugcwala kwamanzi).

Ukubaluleka: Ukungagcwali kakuhle kakhulu kunokubangela ukugcwaliswa okungaphelelanga okanye izithuba zeekona kwiimveliso; ukugeleza okuphezulu kakhulu kunokukhokelela ekukhanyeni okanye ekuphuphumeni, nto leyo enyusa iindleko emva kokucubungula.

2. Isantya Sokunyanga (Ixesha Lejeli kunye Nexesha Lokunyanga)

Ixesha leJeli: Lilinganisa ixesha ukusuka ekufudumaleni ukuya ekulahlekelweni kokugeleza kwamanzi (imeko yejeli) kubushushu obuthile (umz., 175°C) (nge-GB/T 14049 nganye). Ngokwesiqhelo kufuneka: imizuzwana engama-50-150 (ihlengahlengiswa ngokusekelwe kubukhulu benxalenye; iindawo ezityebileyo zifuna ixesha elide kancinci lejeli ukuthintela ukungomi ngaphakathi).

Ixesha Lokunyanga: Lilinganisa ixesha elifunekayo ukuze kunyangwe ngokupheleleyo kubushushu obuthile kunye noxinzelelo (olumiselwa lutshintsho lobunzima kwiisampuli zovavanyo ezibunjiweyo; umz., ubunzima beBarcol obungama-80 okanye ngaphezulu bubonisa ukunyanga ngokupheleleyo). Ngokwesiqhelo amaxesha ama-3-5 ejeli.

Ukubaluleka: Ukulungiswa ngokukhawuleza kakhulu kunokubangela uxinzelelo lwangaphakathi kunye nokuqhekeka kweemveliso; ukwenziwa kancinci kakhulu kwandisa imijikelo yemveliso kwaye kunciphisa ukusebenza kakuhle.

3. Izinga lokuNciphisa (Uzinzo oluBumbeneyo emva koKwakha)

Indlela yoVavanyo: Bumba isampuli eqhelekileyo (umz., 120mm × 120mm × 3mm). Emva kokuphola ukuya kubushushu begumbi, linganisa ubukhulu bokwenyani besampuli. Thelekisa ezi nobukhulu besikhunta ukuze ubale izinga lokuncipha (Izinga lokuncipha = (Ubukhulu besikhunta – Ubukhulu beSpecimen) / Ubukhulu besikhunta × 100%).

Iikhrayitheriya zokugweba:I-phenolic molding compoundUkuncitshiswa kudla ngokuba phakathi kwe-0.4% ukuya kwi-1.2% (kusezantsi nge-inorganic fillers, phezulu kancinci nge-organic fillers). Ukuncitshiswa kwe-batch kufuneka kube yi-≤±0.2% ukuthintela ukuphambuka kobukhulu kwiimveliso ezigqityiweyo.