1. Zofunikira zamapangidwe a lamba wamchenga:
Malamba amchenga nthawi zambiri amakhala ndi zinthu zitatu zofunika: Base material, Binder ndi abrasives.
Zoyambira: Zovala, Paper Base, Composite base.
Binder: Guluu wa nyama, Semi-resin, utomoni wathunthu, Zinthu zosagwira madzi.
Zovala: Brown corundum, silicon carbide, zirconium corundum, ceramics, calcined, diamondi yokumba.
Njira yolumikizirana: Kulowa m'chiuno, Kulowa m'chiuno, Kulumikizana kwa matako.
2. Kagwiritsidwe ntchito ka lamba wa mchenga:
(1).gulu processing makampani: yaiwisi nkhuni, plywood, fiberboard, tinthu bolodi, veneer, mipando, zomangira ndi ena;
(2).Makampani opanga zitsulo: zitsulo zopanda chitsulo, zitsulo zachitsulo;
(3).Ceramics, zikopa, CHIKWANGWANI, utoto, pulasitiki ndi zinthu mphira, miyala ndi mafakitale ena.
3. Kusankha lamba wa mchenga:
Kusankha lamba wa mchenga molondola komanso moyenera sikungopeza bwino kugaya, komanso kuganizira moyo wautumiki wa lamba wa mchenga.Maziko akuluakulu posankha lamba wa mchenga ndi mikhalidwe yopera, monga makhalidwe a ntchito yopera, mkhalidwe wa makina opera, ntchito ndi zofunikira zaumisiri wa workpiece, ndi kupanga bwino.Kumbali inayi, iyenera kusankhidwa kuchokera ku makhalidwe a lamba wa mchenga.
(1).Kusankha kukula kwambewu:
Nthawi zambiri, kusankha kukula kwa njere za abrasive ndikuganizira momwe mpheroyo imagwirira ntchito komanso kumapeto kwa chogwiriracho.Kwa zida zosiyanasiyana zogwirira ntchito, kukula kwambewu kwa malamba amchenga akupera movutikira, kupera wapakatikati ndikupera bwino akuwonetsedwa mu tebulo ili pansipa.
| Zida zogwirira ntchito | Akupera mwaukali | Pakati akupera | Akupera bwino | Njira yopera |
| Chitsulo | 24-60 | 80-120 | 150-W40 | Zouma ndi zonyowa |
| Zitsulo zopanda chitsulo | 24-60 | 80-150 | 180-W50 | Zouma ndi zonyowa |
| Wood | 36-80 | 100-150 | 180-240 | Zouma |
| Galasi | 60-120 | 100-150 | 180-W40 | Yonyowa |
| Penta | 80-150 | 180-240 | 280-W20 | Zouma ndi zonyowa |
| Chikopa | 46-60 | 80-150 | 180-W28 | Zouma |
| Mpira | 16-46 | 60-120 | 150-W40 | Zouma |
| Pulasitiki | 36-80 | 100-150 | 180-W40 | Yonyowa |
| Zoumba | 36-80 | 100-150 | 180-W40 | Yonyowa |
| Mwala | 36-80 | 100-150 | 180-W40 | Yonyowa |
(2) .Kusankha Binder:
Malinga ndi zomangira zosiyanasiyana, malamba a mchenga amatha kugawidwa m'mitundu inayi: malamba a mchenga a guluu (omwe amadziwika kuti malamba a mchenga wowuma), malamba amchenga a semi-resin, malamba a mchenga wa utomoni ndi malamba osalowa madzi.Mndandanda wa ntchito ndi motere:
① Malamba a guluu wa nyama ndi otchipa komanso osavuta kupanga, ndipo ndi oyenera kukupera mothamanga kwambiri.
② Lamba wa mchenga wa semi-resin umapangitsa kuti pakhale vuto la kusakana chinyezi komanso kukana kutentha kwa lamba wa mchenga wa guluu wa nyama, kupititsa patsogolo magwiridwe antchito, ndipo kugaya kumachulukira kawiri mtengo ukakwera pang'ono.Amagwiritsidwa ntchito kwambiri pogaya zitsulo komanso zopanda zitsulo, makamaka m'makampani opanga matabwa ndi zikopa otchuka kwambiri.
③ Lamba wa mchenga wa utomoni wonse amapangidwa ndi utomoni wapamwamba kwambiri \nsalu ya thonje yamphamvu kwambiri komanso zomatira zapamwamba.Mtengo wake ndi wokwera, koma sumva kuvala ndipo ukhoza kukhala pansi kwambiri.Zili ndi ntchito pamene ntchito yothamanga kwambiri, kudula kwakukulu, ndi kupera mwatsatanetsatane kumafunika.Mitundu itatu yomwe ili pamwambayi ya malamba amchenga ndi oyenera kugaya youma, komanso akhoza kupedwa ndi mafuta, koma samamva madzi.
④ Poyerekeza ndi malamba a mchenga omwe tawatchulawa, malamba a mchenga osagwira madzi amakhala ndi zofunikira zapamwamba pakupanga zida komanso njira zopangira zovuta, zomwe zimapangitsa kuti pakhale zotulutsa zochepa komanso mitengo yokwera.Ili ndi mawonekedwe a lamba wa mchenga wa resin, ndipo itha kugwiritsidwanso ntchito mwachindunji popera madzi ozizira.
(3).Zosankha zoyambira:
Papepala maziko
Pepala limodzi lopepuka la 65-100g/m2 ndi lopepuka, lopyapyala, lofewa, lamphamvu yotsika, komanso lotsika mtengo.Nthawi zambiri amagwiritsidwa ntchito popera bwino kapena kugaya sing'anga, yoyenera pamakina opangira mchenga kapena ogwedera.Kupukuta zitsulo zooneka ngati zovuta, kupukuta matabwa opindika, kupukuta zitsulo ndi matabwa, ndikupera zida zolondola ndi mamita, ndi zina zotero.
Mapepala amitundu ingapo apakati-kakulidwe 110-130g/m2 ndi okhuthala, osinthasintha, ndipo ali ndi mphamvu zolimba kuposa pepala lopepuka.Amagwiritsidwa ntchito pamakina opukutira pamanja kapena m'manja popanga sandpaper yokhala ngati pepala komanso yozungulira.Kuchotsa ndi kupukuta zitsulo zogwirira ntchito, kupukuta mipando yamatabwa, kupukuta kwa primer putty, kupukuta makina a lacquer, kupukuta mawotchi ndi zida zina.
Mipikisano wosanjikiza heavy-ntchito pepala 160-230g/m2 ndi wandiweyani, kusinthasintha, mkulu wamakokedwe mphamvu, otsika elongation, ndi mkulu kulimba.Amagwiritsidwa ntchito popanga malamba a mchenga pamakina.Ndi oyenera ng'oma sander, lonse lamba sander ndi ambiri lamba chopukusira, makamaka pokonza plywood, particleboard, fiberboard, zikopa ndi matabwa.
Nsalu maziko
Nsalu yopepuka (twill), yofewa kwambiri, yopepuka komanso yopyapyala, yolimba yolimba.Kwa makina ogwiritsira ntchito pamanja kapena ochepa.Zitsulo akupera ndi dzimbiri kuchotsa, kupukuta, ng'oma sanding makina mbale processing, kusoka makina chimango processing, kuwala-ntchito sanding malamba.
Nsalu yapakatikati (yozungulira), yosinthika bwino, yokhuthala komanso yolimba kwambiri.General makina mchenga malamba, ndi heavy-ntchito mchenga malamba, monga mipando, zida, zitsulo magetsi, mapepala mchenga zitsulo, ndi injini tsamba akupera mtundu.
Nsalu yolemera kwambiri (satin) ndi yokhuthala ndipo imakhala ndi mphamvu zambiri polowera m'makhope kusiyana ndi njira yozungulira.Ndizoyenera kugaya zolemetsa.Amagwiritsidwa ntchito pokonza mbale zazikulu.
Masamba a kompositi
Makamaka wandiweyani, wamphamvu kwambiri, anti-khwinya, anti-tensile komanso anti-breakage.Lamba wa mchenga wolemera kwambiri, makamaka woyenera pokonza bolodi la guillotine, fiberboard, plywood ndi pogaya pogaya pansi, ndi zina zotero. Pepala lachitsulo ndi lakuda kwambiri, lokhala ndi mphamvu zambiri, litalikirapo komanso kukana kutentha.Makamaka ntchito mchenga chimbale, kuwotcherera msoko, kuchotsa dzimbiri, zitsulo khungu ndi okusayidi wosanjikiza kuchotsa wosanjikiza, etc.
4.Kusankhidwa kwa ma abrasives:
Nthawi zambiri ndi workpiece zakuthupi ndi apamwamba kumangika mphamvu.Sankhani corundum abrasive ndi kulimba kwakukulu, kukana kuthamanga kwapamwamba, kukana mwamphamvu kuphwanya, kukana kutentha kwakukulu ndi kukhazikika kwa mankhwala;
Kwa zitsulo ndi zopanda zitsulo zogwirira ntchito zokhala ndi mphamvu zochepa komanso zolimba kwambiri, sankhani ma abrasives a silicon carbide okhala ndi kuuma kwakukulu, kuphulika kwakukulu, ndi fragility, monga: galasi, mkuwa, zikopa, mphira, zoumba, yade, particleboard, fiberboard, etc.
5. Chithandizo musanagwiritse ntchito lamba wa mchenga:
Mukamagwiritsa ntchito lamba wa mchenga, njira yothamanga iyenera kukhala yogwirizana ndi njira yomwe ili kumbuyo kwa lamba wa mchenga, kuti muteteze lamba wamchenga kuti asathyoke panthawi yogwira ntchito kapena kusokoneza khalidwe lapamwamba la zogwirira ntchito za mafakitale.Lamba wa mchenga uyenera kuzunguliridwa kwa mphindi zingapo musanagaye, ndipo kugaya kuyenera kuyambika pamene lamba wa mchenga akuyenda bwino.
Lamba wamchenga uyenera kuyimitsidwa musanagwiritse ntchito, ndiye kuti, lamba wa mchenga wosapakidwa uyenera kupachikidwa pa chitoliro cha 100-250mm m'mimba mwake ndikuusiya upachike kwa masiku awiri kapena atatu.Kusankhidwa kwa m'mimba mwake wa chitoliro kuyenera kutsimikiziridwa molingana ndi kukula kwa tirigu wa lamba wa mchenga.Popachikidwa, cholumikiziracho chiyenera kukhala kumapeto kwa chitoliro ndipo chitolirocho chiyenera kukhala chopingasa.
Nthawi yotumiza: Jun-03-2019