Papa kila pale ʻaʻahu

ʻO nā papa kila kūpaʻa i ke komo ʻana he papa kila haʻahaʻa-kalapona a me kahi papa kūpaʻa i ke komo ʻana o ka metala, me ka papa kūpaʻa i ke komo ʻana o ka metala e loaʻa ana he 1/3 a 1/2 o ka mānoanoa holoʻokoʻa. I ka wā o ka hana, hāʻawi ka mea kumu i nā waiwai piha e like me ka ikaika, ka paʻakikī, a me ka ductility e kūʻē i nā mana o waho, ʻoiai ʻo ka papa kūpaʻa i ke komo ʻana o ka metala e hāʻawi i ke kūpaʻa i ke komo ʻana i hana ʻia no nā kūlana hana kikoʻī.

Hoʻopili ʻia ka papa pale ʻaʻahu me ka metallurgical. Ma ka hoʻohana ʻana i nā lako kūikawā a me ke kaʻina hana hoʻoheheʻe automated, ua hoʻopili like ʻia ka uea me ka pale ʻana iā ia iho me ka paʻakikī kiʻekiʻe i ka mea kumu. Hiki i ka papa hui ke lilo i hoʻokahi, ʻelua, a i ʻole he mau papa. Ma muli o nā lakio hoʻemi me ka metala like ʻole, ulu nā māwae transverse like i ka wā o ke kaʻina hana lamination, kahi hōʻailona o nā papa kila pale ʻaʻahu.

ʻO ka papa pale ʻaʻahu o ka alloy ua hana nui ʻia me ka chromium alloy, me nā mea hoʻohui ʻē aʻe e like me ka manganese, molybdenum, niobium, a me ka nickel i hoʻohui ʻia. ʻO nā carbides i loko o ke ʻano metallographic he fibrous, me nā fibers i kuhikuhi ʻia i ka perpendicular i ka ʻili. Hiki i ka microhardness carbide ke hiki ma luna o HV 1700-2000, a hiki i ka paʻakikī o ka ʻili ke hiki i HRC 58-62. He paʻa loa nā carbides alloy i nā mahana kiʻekiʻe, e mālama ana i ka paʻakikī kiʻekiʻe a me ke kūpaʻa oxidation maikaʻi loa, e ʻae ana i ka hana piha i loko o nā mahana a hiki i 500°C.

Hiki ke ʻike ʻia ka papa pale ʻaʻahu i nā ʻano haiki (2.5-3.5mm) a i ʻole ka laulā (8-12mm), a me nā ʻano piʻo (S a me W). Hana nui ʻia me nā mea hoʻohui chromium, loaʻa pū kekahi i kēia mau mea hoʻohui i ka manganese, molybdenum, niobium, nickel, a me ka boron. Hoʻolaha ʻia nā carbides i loko o kahi ʻano fibrous i loko o ke ʻano metallographic, me nā olonā e holo ana i ka ʻili. Me ka nui o ka carbide he 40-60%, hiki i ka microhardness ke hiki ma luna o HV1700, a hiki i ka paʻakikī o ka ʻili ke hiki i HRC58-62. Ua māhele nui ʻia nā papa kila pale ʻaʻahu i ʻekolu mau māhele: ke kumu maʻamau, ke kūpaʻa i ka hopena a me ke kūpaʻa i ka mahana kiʻekiʻe. Hiki i ka mānoanoa holoʻokoʻa o nā papa kila pale ʻaʻahu ke liʻiliʻi e like me 5.5 (2.5+3) mm a me ka mānoanoa e like me 30 (15+15) mm. Hiki ke ʻōwili ʻia nā papa kila pale ʻaʻahu i loko o nā paipu pale ʻaʻahu me ka liʻiliʻi o DN200, a hiki ke hana ʻia i loko o nā kuʻekuʻe pale ʻaʻahu, nā tees pale ʻaʻahu a me nā mea hoʻemi pale ʻaʻahu.