Paipai ʻia ʻo Brazing Paste ma muli o ke kālā
Palapala Hoʻopili Paʻi Paʻi Paʻa kālā
ʻO ka brazing kālā kahi kaʻina hoʻohui e hoʻomehana ʻia ai kahi metala hoʻopiha piha ʻole, ka mea hoʻoheheʻe i ka wela hoʻoheheʻe (ma luna o 800°F) a puʻunaue ʻia ma waena o ʻelua a ʻoi aku paha nā ʻāpana pili kokoke e ka capillary attraction.
ʻO nā mea nui o ke kala brazing paste ʻo ia ka pauka kālā, ka mea hana welding a me nā mea kōkua.ʻO ka pauka kālā kahi mea nui e hāʻawi ai i ka conductivity uila a me ka wela, hiki iā ia ke hoʻopiha i nā hakahaka o nā wahi brazed a hoʻoheheʻe i nā wela kiʻekiʻe.Hoʻohana ʻia ka mea hoʻoheheʻe e hoʻomaʻemaʻe a hoʻoneʻe i ka papa oxide a hoʻoikaika i ka hoʻohui ʻana o nā kiko brazed.ʻO ke kuleana o nā mea hoʻohui e hoʻomaikaʻi i ka maikaʻi o ka welding, hōʻemi i ka oxidation a hoʻonui i ka ikaika a me ka hilinaʻi o nā pilina brazed.
Pili i ke kala, ke kala a me ke keleawe a me ke keleawe;ʻO ke kila kalapona haʻahaʻa, ke kila kila haʻahaʻa, ke kila kuhiliʻole, ke kila kumu nickel kiʻekiʻe, ka metala refractory a me nā ʻano mea hoʻopili uila a pau.
| ʻO nā Alloy Brazing Kālā ʻAʻohe Cadmium (BAg) | |||||||
| Helu NMT | Helu AWS | Ag | Cu | Zn | Sn | Solidus wela | Liquidus Mahana |
| NMT-101 | BAg-9 | 65 | 20 | 15 | / | 670 ℃ | 720 ℃ |
| NMT-102 | BAg-7 | 56 | 22 | 17 | 5 | 620 ℃ | 655 ℃ |
| NMT-103 | BAg-5 | 45 | 30 | 25 | / | 663 ℃ | 743 ℃ |
| NMT-104 | BAg-36 | 45 | 27 | 25 | 3 | 640 ℃ | 680 ℃ |
Hoʻohana ʻia ʻo Copper Brazing Paste
He kūpono no ka hoʻopaʻa ʻana i ke keleawe a me ke keleawe a me ke kālā a i ʻole ke keleawe e pili ana i nā mea pili uila;Hoʻohana nui ʻia i nā kaʻa, uila, nā mea hoʻonaninani a me nā ʻoihana mea kani;ʻAʻole hiki ke hoʻohana ʻia no ka hoʻopaʻa ʻana i ke kila, nā nickel-based alloys a i ʻole nā mea hao keleawe-nickel i loaʻa ka ≥10% nickel.
| ʻO nā Alloy Brazing Silver Free Cadmium (BAgCuP) | ||||||
| Helu NMT | Helu AWS | Ag | Cu | P | Solidus wela | Liquidus Mahana |
| NMT-201 | BCuP-5 | 15 | 20 | 15 | 640 ℃ | 800 ℃ |
| NMT-202 | BCuP-8 | 18 | 22 | 17 | 643 ℃ | 666 |
| NMT-203 | - | 25 | 30 | 25 | 650 | 720 |
