He kowiri tira te whakaoti i te kounga o te wheketere hoko tika
Āhuatanga ā-tinana
1. He katote chloride kei roto i te taiao whakahaere.
Ka kitea nga katote chloride i roto i te tote, te werawera, te wai moana, te hau, te oneone, me etahi atu. He tere ake te pirau o te kowiri tira i te aroaro o nga katote hauota i te rino ngawari noa.
Na te whakamahi o te taiao kowiri tira he whakaritenga, me te hiahia ki te horoi maha, tango puehu, kia ma me te maroke.(Ka hoatu e ia he "whakamahinga kino.")
He tauira kei te United States: i whakamahia e tetahi umanga he ipu oki hei pupuri i tetahi otinga kei roto nga katote hauota.Neke atu i te kotahi rau tau te ipu e whakamahia ana, a i te tekau tau atu i 1990 i whakamaheretia kia whakakapia.Na te mea karekau i tino hou nga taonga oki, kua waikura te ipu, kua turuturu i te 16 ra i muri i te whakakapinga ki te kowiri tira.
2. Kaore he maimoatanga otinga.
Karekau nga huānga konumohe i memeha ki roto i te kopu, na te iti o te koranu i roto i te hanganga matrix me te ngoikore o te waikura.
3. Ko nga mea penei kaore he titanium me te niobium he ahua maori ki te waikura intergranular.
Ko te taapiri o te titanium me te niobium, me te maimoatanga pumau, ka taea te whakaiti i te waikura intergranular.
I roto i te rangi matū waikura reo ranei e taea te ātete te waikura o te koranu maitai teitei, kowiri tira ko te mata ataahua, me te pai te waikura ātete, e kore e whai ki te whakakikoruatia me etahi atu maimoatanga mata, me te tākaro i te āhuatanga mata tūturu o te kowiri tira, whakamahia i roto i he maha nga ahuatanga o te ahua o te maitai, e kiia ana he kowiri tira.Mo te mahi o te 13 chromium maitai, 18-8 chromium nickel maitai me etahi atu maitai koranu teitei.
Mai i te tirohanga metallographic, no te mea he kowiri tira kei roto i te chromium me te mata o te hanganga o te kiriata chromium tino kikokore, ka wehea te kiriata mai i te hāora i roto i te whakaeke maitai o te aukati waikura.
Kia mau tonu te parenga waikura i roto i te kowiri tira, me nui ake i te 12% te chromium te rino.
304stainless steel Shim Plates he kowiri tira te ao, e whakamahia nuitia ana i roto i te hanga taputapu me nga waahanga e hiahia ana ki nga waahanga matawhānui pai (te aukati i te waikura me te hangai).
Ko te 304 kowiri tira he parani kowiri tira i hangaia i runga i nga paerewa ASTM i te United States.Ko te 304 he rite ki te 0Cr19Ni9 (0Cr18Ni9) kowiri tira o Haina.304 kei roto 19% chromium me te 9% nickel.
Ko te 304 te maitai kowiri/wera te tino whakamahia.Ka whakamahia i roto i nga taputapu hanga kai / taputapu matū xiton / pūngao karihi, etc.
Ko te 304 e rite ana ki te waitohu Hainamana 0Cr18Ni9,1Cr18Ni9Ti, ihirangi waro ≤0:08%
Ko te 304L Kowauwau Shim Plates he rereke o te 304stainless Steel Shim Plates he kowiri tira me te iti o te waro, ka whakamahia mo nga tono whakapiri.Ko te iti o te waro o te waro ka whakaiti i te rerenga carbide i roto i te rohe e pa ana ki te wera e tata ana ki te weld, tera pea ka arai i te waikura intergranular (te welding erosion) i roto i te kowiri tira i etahi taiao.
Tawhā
| T | pakeke | pakeke | Ko te ahua o te maimoatanga o te wera whakamaroke i te rerenga | kawe% | ||||||
| pakeke | pakeke | Ko te kaha tukuN/mm | Te kaha mataraN/mm | whakaroa% | Te maimoatanga wera | pakekeHV | Ko te kaha tukuN/mm | Te kaha mataraN/mm | ||
| 301-CSP | 1/2H | 340±30 | ≥510 | ≥930 | ≥10 | - | - | - | - | 2.3 |
| 3/4H | 400±30 | ≥745 | ≥1130 | ≥5 | - | - | - | - | 2.3 | |
| H | 460±30 | ≥1030 | ≥1320 | - | - | - | - | - | 2.3 | |
| EH | 510±20 | ≥1275 | ≥1570 | - | - | - | - | - | 2.3 | |
| SEH | ≥530 | ≥1450 | ≥1740 | - | - | - | - | - | 2.3 | |
| 304-CSP | 1/2H | 280±30 | ≥470 | ≥780 | ≥6 | - | - | - | - | 2.3 |
| 3/4H | 340±30 | ≥665 | ≥930 | ≥3 | - | - | - | - | 2.3 | |
| H | ≥370 | ≥880 | ≥1130 | - | - | - | - | - | 2.3 | |
| 631-CSP | 0 | ≤200 | - | ≤1030 | ≥20 | TH1050RH950 | ≥345≥392 | ≥960≥1030 | ≥1140≥1230 | 2.3 |
| 1/2H | 375±25 | - | ≥1080 | ≥5 | CH | ≥380 | ≥880 | ≥1230 | 2.3 | |
| 3/4H | 425±25 | - | ≥1180 | CH | ≥450 | ≥1080 | ≥1420 | 2.3 | ||
| H | ≥450 | - | ≥1420 | CH | ≥530 | ≥1320 | ≥1720 | 2.3 | ||
