Kodi makapu a mapepala opaka phula anayamba liti kupanga?Kodi makina opangira chikho ndi chiyani?

Aliyense akudziwa kuti pepala chikho makina ndi mtundu wa kupanga pepala chikho, amene ali ndi makhalidwe a dzuwa mkulu ndi akamaumba bwino, amene angathe kukwaniritsa zosowa za anthu.Ndiye kodi mukudziwa nthawi yomwe makapu amapepala opaka phula adayamba kupanga?Kodi makina opangira chikho ndi chiyani?Zotsatirazi ndi gulu, zipangizo kupanga ndi makhalidwe a makina chikho pepala kuchokera Hongxin pepala makina opanga makina.Gulu la makapu a mapepala opangidwa ndimakina opangira mapepala:

1. Makapu a pepala opaka phula Mu 1932, makapu a mapepala opaka phula, omwe pamwamba pake amatha kusindikizidwa ndi mitundu yosiyanasiyana yokongola, amatha kupititsa patsogolo kulengeza.Kumbali imodzi, kupukuta kapu ya pepala kumatha kupewa kukhudzana mwachindunji pakati pa chakumwa ndi pepala, kuteteza kumamatira kwa guluu, ndikuwonjezera kulimba kwa kapu ya pepala;kumbali ina, imawonjezeranso makulidwe a khoma lakumbali, zomwe zimathandizira kwambiri mphamvu ya chikho cha pepala ndikuchepetsa nthawi yopanga.Kuchuluka kwa mapepala ofunikira pa makapu amphamvu, motero kuchepetsa ndalama zopangira.Monga makapu a mapepala a sera amasanduka mbiya za zakumwa zoziziritsa kukhosi, anthu amafunanso chidebe chosavuta chakumwa chotentha.Koma zakumwa zotentha zidzasungunula phula la sera mkati mwa chikho, ndipo mgwirizanowo udzalekanitsa.Chifukwa chake, makapu ambiri amapepala a sera si oyenera kunyamula zakumwa zotentha.
2. Pofuna kukulitsa makapu ogwiritsira ntchito makapu a mapepala, makapu a mapepala owongoka awiri-wosanjikiza anayambika mu 1940. Kapu ya pepalayi sikophweka kunyamula, komanso ingagwiritsidwe ntchito kusunga zakumwa zotentha.Kuyambira nthawi imeneyo, opanga amapaka makapuwo ndi latex kuti aphimbe “fungo la makatoni” a pepalalo komanso kuti kapuyo isatayike.Makapu a sera osanjikiza amodzi okhala ndi zokutira za latex amagwiritsidwa ntchito kwambiri kusunga khofi wotentha m'makina ogulitsa.

3. Makapu amapepala opangidwa ndi pulasitikiMakampani ena azakudya ayamba kuvala makatoni ndi polyethylene kuti awonjezere chotchinga ndi kulimba kwa mpweya pamapaketi a mapepala.Popeza malo osungunuka a polyethylene ndi apamwamba kwambiri kuposa sera, makapu a mapepala opangidwa ndi polyethylene angagwiritsidwe ntchito kusunga zakumwa zotentha, zomwe zingathetsere vuto kuti kusungunuka kwa zinthu zowonongeka kumakhudza ubwino wa mankhwala.Panthawi imodzimodziyo, zokutira za polyethylene zimakhala zofewa kusiyana ndi phula loyambirira la sera, kumapangitsa maonekedwe a makapu a mapepala.Kuphatikiza apo, ukadaulo wake wokonza ndi wotsika mtengo komanso wachangu kuposa njira zogwiritsira ntchito zokutira za latex.