Pepa: tapa, me te whakamahi o

I roto i te korero pepa maha i huaina te "pepa" ranei "kiri."

Kei reira o te pepa papanga ranei turanga pani ki te apa o te rauemi auaha.

I runga i te hanga e pā ana ki te tukatuka o te rakau, kirihou, whakarewa, e kore e taea te mahi i te karaihe, kahore nazhdachki. Ko reira mahuinga ka tango i peita tawhito, kahore he kē, ki te hiahia koe ki te faaineine i te mata no te tämata me te peita, me ētahi atu

Ko te Hainamana tawhito i roto i te rau tau 13 ki te awhina o te piripiri e hāngai ana i runga i te māngaro titi i runga i pukapuka whakato purapura, onepu miro hurihia me anga.

whakaaro te tauira o te pepa te faaanaana ko te "pepa karaihe" no te mea whakamahia hoki tona ahumahi matūriki karaihe meneti.

I roto i te 1834, he mataaro pūkaha American A. Fischer Jr. tuatahi arai te hanga o te kakahu Emery, witi auaha kua nei kua Karbid Kremniya me alumina.

kia mohio koe i taua witi pepa me he tetahi o ona āhuatanga matua.

Conventionally, wehea te pepa ki ngā rōpū: matotoru, reo me te pepa witi pai.

rahi witi whakatau te momo o te mahi mo te mea pepa. Ka āwhina i hoki tapanga ki ia te whiriwhiri.

whakamana Emery mahi i runga i te maimoatanga maroke me te mākū o papa o nga mea katoa putty.

Hoki rerekē momo o te mahi e whakamahia ana ki te wehewehe i waenganui i witi, me te pūtake o te pepa. Māka i te pepa ngā.

hōanga toheroa

N - tapanga o ngā hua kāinga (tawhito).

P - tapanga o ngā hua kawemai me te tapa hou o ngā hua kāinga.

Manufacturers e hua taonga mo te kaweake, te whakamahi i te ti'araa paerewa ao kotahi o te rahi witi.

I roto i te tahi mau āhua o te Uniana hinga pepa, tohu te hua oti e kawea production mākinakina i rite ki GOST (tawhito).

Kei te tupu te taua mea i roto i Canada, China, te US ko Japan, te wahi pai te mākete motu ona ake tohu.

Pākehā Paerewa (GOST hou) uhinga a te hua o ngā uara ki te whakaiti i te rahi witi. Mutu rerekē i roto i enei whenua tohua te ki pepa.

Paerewa, mo te tauira, hangaia kia e te uara e, i runga i te anga ke, heke ki whakaiti i te rahi witi.

e kore e taea te waiho ēnei rerekētanga ka hoko hua auaha i roto i te rohe o te mua Soviet Union, rite kia hua tenei rerekētanga i roto i te rironga o nga taonga he.

Me kï reira e te tino maha pepa kawemai hokona i roto i ngā hua, me te kāinga - i roto i ngā rārangi, ka hokona tona mita.

Ki te whakamahia te pepa e i roto i te ora ia rā, ehara i te mea e tika ana ki te haamana'o tohua. E mea titauhia anake ki te mohio e he te tapanga tawhito ki te pukapuka H i muri i te tau, me te hou ki te pukapuka P i mua i te tau.

I te taha ki whakamuri o te pepa, i reira e te tahi atu iku'anga. Ka taea e te tiki ratou mōhiohio anō e pā ana ki te pepa: kua hāngai reira, te hangarau o te hanga, te momo o te rauemi witi auaha, momo o piripiri, etc ...

Na e matau ana koutou ki ta te pepa. Tohu? Ki reira, koutou, rawa, matau. tonu te reira ki te hiahia katoa te mahi ahuareka, me te hua.