Musiyano uripo pakati pehukuru hweSC neDN yepombi yesimbi yakakoshwa:

1.SC kazhinji inoreva kune welded simbi pombi, mutauro STEEL CONDUIT, ipfupi yezvinyorwa.

2. DN inoreva dhayamita yezita repaipi yesimbi yakakoshwa, inova iyo dhayamita yepombi inoratidza pombi.

3. Mapombi esimbi ane galvanized akakamurwa kuita mapaipi esimbi anotonhora uye anopisa-dip galvanized simbi pombi.Mapombi esimbi anotonhora akarambidzwa, uye ekupedzisira akasimudzirwa nehurumende kuti ashandiswe kwenguva pfupi.Mumakore ekuma1960 nema1970, nyika dzakasimukira pasi rose dzakatanga kugadzira mhando itsva dzepombi uye mapaipi akarambidzwa.Bazi rezvekuvaka nemamwe mapazi nemakomisheni mana vakaburitsawo gwaro rinojekesa kuti pombi ine malata icharambidzwa sepombi yemvura kubva muna 2000. Pombi ine malata haawanzoshandiswa mupombi dzemvura inotonhora dzenzvimbo itsva inogara vanhu.Mapombi emvura inopisa mune dzimwe nharaunda anoshandisa mapaipi ane marara.Hot-dip galvanized simbi mapaipi anoshandiswa zvakanyanya mukudzivirira moto, simba remagetsi nemigwagwa mikuru.
Kuwedzera ruzivo:

Performance impact

(1) Carbon;iyo yakakwira iyo kabhoni yemukati, iyo yakakwirira kuoma kwesimbi, asi yakaipisisa plastiki yayo uye kuoma.

(2) Sarufa;chinhu chisina kunaka chiri musimbi.Kana simbi ine yakakwira sarufa inoiswa pasi pekumanikidzwa kugadziridzwa pakupisa kwakanyanya, zviri nyore kuve brittle uye inowanzonzi inopisa brittleness.

(3) Phosphorus;inogona kuderedza zvakanyanya plastiki uye kuoma kwesimbi, kunyanya pakudziya kwakadzika, chiitiko ichi chinonzi kutonhora brittleness.Mumhando yepamusoro simbi, sarufa uye phosphorus inofanira kunyatsodzorwa.Zvisinei, kubva kune imwe nzvimbo yekuona, kuiswa kwepamusoro sulfuri uye phosphorus mu low carbon steel kunogona kuita kuti zvive nyore kutema, izvo zvinobatsira kuvandudza machinability yesimbi.

(4) Manganese;inogona kuvandudza simba resimbi, inogona kuderedza uye kubvisa migumisiro yakaipa yesarufa, uye inogona kuvandudza kuoma kwesimbi.Yakakwira alloy simbi (yakakwirira manganese simbi) ine yakakwira manganese yemukati ine yakanaka kupfeka kuramba.Uye zvimwe zvinhu zvemuviri.

(5) Silicon;inogona kuwedzera kuoma kwesimbi, asi plastiki uye kuoma kunoderera.Simbi inoshandiswa muinjiniya yemagetsi ine imwe huwandu hwesilicon, iyo inogona kuvandudza iyo yakapfava magineti zvivakwa.

(6) Tungsten;inogona kuvandudza kuoma kwakatsvuka uye kupisa simba resimbi, uye inogona kuvandudza kupfeka kuramba kwesimbi.

(7) Chromium;inogona kuvandudza kuomarara uye kupfeka kuramba kwesimbi, uye inogona kuvandudza kusimba kwekuora uye oxidation kuramba kwesimbi.

Nekuramba kusingadziviriki, mapaipi ese esimbi (mapombi matema) anogadzikiswa.Mapaipi esimbi ane galvanized akakamurwa kuita inopisa-dip galvanizing uye yemagetsi simbi zingi.Iyo inopisa-dip galvanizing galvanized layer yakakora, uye mutengo we electro-galvanizing wakaderera, saka kune pombi yesimbi yakabatiswa.