No nā paipu kila 20 # me ka mānoanoa o ka pā a hiki i 87mm, he koʻikoʻi loa ka pono o loko, ʻoiai ʻo nā māwae liʻiliʻi a me nā haumia hiki ke hoʻololi maoli i ko lākou kūpaʻa a me ka hana, a hiki i ka hoʻāʻo ultrasonic ke ʻike pono i kēia mau hemahema.
ʻO ka ho'āʻo kani kani, i kapa ʻia ʻo UT, kahi ʻenehana hoʻāʻo ʻole luku e hoʻohana i nā waiwai o ka noʻonoʻo, refraction, a me ka attenuation o nā hawewe kani ultrasonic ke hoʻolaha lākou ma o kahi mea e ʻike ai i nā hemahema i loko o ka mea.
Ke loaʻa ka hawewe kani ultrasonic i nā pōʻino i loko o ka mea e like me nā māwae, nā inclusions a i ʻole nā lua, e hana ʻia nā nalu i ʻike ʻia, a hiki ke hoʻoholo ʻia ke wahi, ke ʻano a me ka nui o nā hemahema ma o ka loaʻa ʻana o kēia mau nalu.
Ma o ka nānā ponoʻana, e hōʻoiaʻiʻo i ka pauʻole o ka paipu kila i nā hemahema a me ka hoʻokō pono i nā kūlana a me nā koi o nā mea kūʻai.
ʻO Botop kahi mea hana loea a hilinaʻi Welded Steel Pipe a me Seamless Steel Pipe stockist ma Kina, hāʻawi iā ʻoe i nā huahana paipu kila me ka maikaʻi a me ke kumukūʻai hoʻokūkū. Ke hoʻohiki nei mākou e kākoʻo i ka hui nānā ʻekolu no nā waiwai āpau a mākou e kūʻai aku ai, a e hoʻonohonoho mākou i nā mea nānā e nānā hou i nā paipu kila ke hāʻawi ʻia kēlā me kēia pūʻulu o nā paipu kila e hōʻoia hou i ka maikaʻi o nā paipu kila.
ʻO GB / T 8162 kahi kikoʻī maʻamau i hoʻopuka ʻia e Kina nopaipu kila ʻoleno nā kumu hoʻolālā. ʻO 20 # kahi papa kila kalapona maʻamau me nā ʻano mīkini maikaʻi a me ka hoʻoponopono ʻana, hoʻohana nui ʻia i nā hale kūkulu hale a me nā ʻōnaehana mechanical.
ʻO GB/T 8162 Papa 20 ka haku mele a me nā pono waiwai mechanical penei:
GB/T 8162 Papa 20 Hui Kemika:
| Papa kila | Hoʻohui kemika, ma ka % ma ka nuipaʻa | |||||||
| C | Si | Mn | P | S | Cr | Ni | Cu | |
| 20 | 0.17 - 0.23 | 0.17 - 0.37 | 0.35 - 0.65 | 0.035 ka nui | 0.035 ka nui | 0.25 ka nui | 0.30 ka nui | 0.25 ka nui |
GB/T 8162 Papa 20 Nā Pono Mechanical:
| Papa kila | ʻO ka ikaika ʻo Rm MPa | ʻO ka hāʻawi ʻana i ka ikaika ReL MPa | Elongation A % | ||
| Anawaena inoa S | |||||
| ≤16 mm | ＞16 mm ≤30 mm | ＞30 mm | |||
| 20 | ≥410 | 245 | 235 | 225 | 20 |
Ka manawa hoʻouna: Oct-15-2024