Ngā Pūrongo - ASTM A283 me ASTM A709: Ngā Rerekētanga Matua o te Hanganga Matū, Ngā Āhuatanga Mīhini, me Ngā Whakamahinga

I te piki haere tonu o te haumitanga ki ngā hanganga o te ao, kei te aro nui atu ngā kaimahi kirimana, ngā kaihanga maitai, me ngā tīma hokohoko ki ngā rerekētanga mahi i waenga i ngā paerewa maitai hanganga.ASTM A283meASTM A709e rua ngā paerewa pereti maitai e whakamahia whānuitia ana, he rerekē ngā āhuatanga o ia mea e pā ana ki te hanganga matū, ngā āhuatanga miihini, me ngā whakamahinga. Ka whakaratohia e tēnei tuhinga he whakatairite hōhonu mō ngā tohunga i roto i te hanganga piriti, ngā hanganga whare, me ngā kaupapa ahumahi.

ASTM A283: Rino Hanganga Waro Whai Hua

ASTM A283he paerewa pereti maitai hanganga waro e whakamahia whānuitia ana i roto i ngā kaupapa hanga whānui me ngā kaupapa hangarau. Ko ōna painga ko:

He ōhanga, he whai hua hoki

He pai te whakarewa me te ngāwari ki te mahi

He pai mō ngā hanganga ngoikore te kaha

Ko ngā tohu noa ko te A283 Tohu A, B, C, me te D, meTau Ckoinei te mea e whakamahia whānuitia ana. Ko ngā tono noa ko ngā tāke rokiroki, ngā wāhanga hanganga mama, ngā pereti hanga whānui, me ngā wāhanga hangarau kore-tino nui.

Mō te hanganga matū, he maitai waro-iti te A283, he māmā noa iho ōna huānga, kāore he koranu tāpiri, he iti ake te utu engari he iti ake te kaha, he iti ake hoki te roa.

ASTM A709: Rino Kaha-Teitei mō te Piriti

He rerekē, ko te ASTM A709 hete paerewa maitai hanganga i hangaia mō te hanganga piriti, e whakamahia whānuitia ana mō ngā piriti huarahi me te rēriwe, tae atu ki ngā kurupae matua, ngā kurupae whakawhiti, ngā pereti papa, me ngā hanganga whariki.

Ko ngā māka noa ko:

A709 Tau 36

A709 Tau 50

A709 Tau 50W (maitai ātete huarere)

HPS 50W / HPS 70W (maitai mahi-teitei)

Ko ngā painga matua o A709 ko:

Te kaha whakaputa teitei ake (≥345 MPa mō te Tau 50)

He tino pakari i te pāmahana iti mō te ātete ki te ngenge me te pānga

Ātete huarere kōwhiringa hei whakaiti i ngā utu tiaki mō te wā roa

Nā tēnei maitai mahi-teitei, he mea tino pai te A709 mō ngā piriti roa, ngā hanganga taumaha, me ngā kaupapa e hiahia ana kia pakari ki te waikura o te hau.

Te Whakataurite i ngā Āhuatanga Mīhini

Taonga	ASTM A283 Tau C	ASTM A709 Tau 50
Te Kaha o te Hua	≥ 205 MPa	≥ 345 MPa
Kaha Kume	380–515 MPa	450–620 MPa
Te Pakari o te Pānga	Waenga	Tino pai (he pai mō ngā piriti)
Ātete ki te Huarere	Paerewa	Ngā tohu huarere 50W/HPS

He mārama te kaha, te manawanui, me te pakari o te A709, ā, he pai ake mō ngā tono hanganga taumaha me ngā hanganga nui.

Ngā Whakaaro mō te Utu

Nā te mea he nui ake ngā huānga whakarewa me ngā whakaritenga mahi teitei ake,Ko te A709 he nui ake te utu i te A283Mō ngā kaupapa e aro nui ana ki te tahua me te iti o te tono hanganga, ko te A283 te mea tino pai rawa atu mō te whai hua o te utu. Heoi, mō te hanganga piriti me ngā hanganga taumaha, ko te A709 te rauemi e pai ana, e whakahaua ana rānei.

Ko te kaupapa matua a ngā tohunga hangarau ko te whiriwhiri i te momo maitai tika i runga i ngā whakaritenga hanganga, kaua i te utu anake.

Ngā kaupapa iti te kawenga, kāore e tino hira: he rawaka te A283.

Ngā piriti, ngā hanganga roa, ngā kawenga ngenge nui, te pānga rānei ki ngā taiao uaua: Me whai hua te A709.

I te tere haere o te whanaketanga o ngā hanganga o te ao, kei te tipu haere tonu te tono mō te ASTM A709, i te mea kei te pumau tonu te A283 i roto i ngā mākete hanga whare me ngā tāke.

Whakapā mai mō ētahi atu kōrero.