Me pēhea te mahi i te whakamātautau kume paipa SML e ai ki te EN877?

Mō ngā hua i hangaia ki te rino maka porowhita, he rite ki te karāhe, me ine te kaha kume i runga anō i teEN 598:2007+A1:2009, 6.3. Mō ngā hua i hangaia ki te rino maka hina, ki tētahi atu momo rino maka rānei, me whakatau te kaha kume kia rite ki te 2, ki te 3 rānei.

Te tautuhi i te kaha kume i runga i ngā paipa rino maka hina me ngā hononga

1. Ngā tauira

Hei whakatutuki i ngā hua e whakaatu ana i te āhua o ngā hua kua oti, me whakahaere ngā whakamātautau kume ki ngā tauira:i tangohia mai rānei iNgā paipa SMLngā hononga paipa rino maka rānei. Kātahi ka tapahia te tauira kia whakarara ki te tuaka o te paipa, te hononga rānei; mō ngā hononga anake rānei, mai i ngā wahi whakamātautau i whakarewahia motuhaketia, i whakarewahia i te wā kotahi me ngā hononga.

Me rite te wahi whakamātautau i tapahia mai i te tauira ki ngā Pikitia, ā, ki te mea he wahi whakamātautau i whakarewaina motuhaketia, me papatahi, kaua e piko.

2. Ngā Taputapu me te Tikanga Whakamātautau

Me whai taputapu tika te mīhini whakamātautau hei tuku i te kaha whakamātautau kia kore ai e paheke.
Me taea e te mīhini whakamātautau te whakawhanake i tētahi kaha e ranea ana hei wawahi i ngā wāhanga whakamātautau me te tohu anō hoki i te kawenga i pā ki a ia.
Me rite te tika o te mīhini whakamātautau kiEN IS0 6892-1:2019, Rārangi 9.
Me pumau tonu te tere o te tono kawenga kia rite ki ngā whakaritengaEN IS0 6892-1:2019, Rārangi 10.
Me tatau te kaha kume mā te wehewehe i te kaha i tohua i te wā pakaru ki te horahanga o te wāhanga whakawhiti tuatahi o te wahi whakamātautau. Me ine te wāhanga whakawhiti (whānui me te matotoru) me te tika o te 0.1 mm i mua i te whakamātautau.

3. Te Whai Mana o ngā Whakamātautau Kaha Kume

Ka kiia te whakamātautau he whai mana mēnā ka tutuki ngā whakaritenga e whai ake nei:

• mō ngā paipa: ko te toharite o ngā uara e toru i tangohia mō te whakaputanga o te rā kotahi me 200 MPa te iti rawa, ā, ko te uara mōrahi kotahi me noho i waenga i te 180 MPa me te 200 MPa;
• mō ngā hononga: me 150 MPa te iti rawa o ngā uara katoa

Ngā Hua Whakamātautau Kume

Pāwhiritia hei tiro He aha te EN13501-1:2018 (DS SML PAIPA A1)