He aha te kuhanga welding?E pa ana ki te hohonu rewa o te whakarewa turanga, te pirepire weld mua ranei i runga i te wahanga whiti o te hononga paiherea.
Ko nga hononga paiherea ko: te tuitui weld (0A), te rohe whakakotahi (AB) me te rohe wera (BC).
Hipanga 1: Whakatauira
(1) Turanga tapahi o te tauira uruhanga fehokotaki'anga: a.A ape i nga waahi timata me te whakamutu
b.Tapahia ki te 1/3 o te nawe weld
c.Ina iti iho i te 20mm te roa o te nawe weld, tapahia i waenganui o te nawe weld.
(2) Te tapahi
A. Whakauruhia te hiko hiko me te tirotiro mehemea ka tutuki nga taputapu ine i nga whakaritenga whakamatautau;Ka rite ki te Whakaaturanga 1, whakatuwheratia te whare whakamarumaru o te miihini tapahi whakarewa me te whakauru i te paraka tauira whakarewa hei whakamatautau.
(Tuhipoka: Me tino whakatika te paraka whakarewa!)
b.Ka rite ki te whakaatu i te Whakaahua 2, kati te anga whakamarumaru o te miihini tapahi metallographic, whakatuwherahia te paera wai, ka huri i te pana hiko;Kia mau ki te kakau o te miihini tapahi whakarewa ka pehia ki raro hei tapahi i te tauira whakarewa.I muri i te tapahi, ko te roa, te whanui me te teitei o te tauira whakarewa kia iti iho i te 4mm;Katia te piha wai, whakawetohia te hiko, ka tango i te tauira whakarewa.
b.Ka rite ki te whakaatu i te Whakaahua 2, kati te anga whakamarumaru o te miihini tapahi metallographic, whakatuwherahia te paera wai, ka huri i te pana hiko;Kia mau ki te kakau o te miihini tapahi whakarewa ka pehia ki raro hei tapahi i te tauira whakarewa.I muri i te tapahi, ko te roa, te whanui me te teitei o te tauira whakarewa kia iti iho i te 4mm;Katia te piha wai, whakawetohia te hiko, ka tango i te tauira whakarewa.
Hipanga 3: Te waikura
(1) Ka rite ki te Whakaatu 5, whakamahia te waipiro tino me te waikawa nitric hei whakarite i te waikura waikura (3-5% waikawa nitric me te waipiro) i roto i te kapu ine, hoatu te tauira whakarewa ki roto i te wairewa waikura, whakamahia ranei he paraihe iti hei horoi. te mata tapahi mo te waikura.Ko te wa waikura he 10-15 hēkona, a me tirotirohia te paanga o te waikura motuhake.
(2) Ka rite ki te whakaatu i te Whakaahua 6, i muri i te pirau, tangohia te paraka tauira whakarewa me nga tweezers (whakatupato: kaua e pa ki te wai pirau me nga ringaringa), ka horoi i te wairewa waikura i runga i te mata o te paraka tauira whakarewa ki te ma. wai.
(1) Pupuhi kia maroke
Hipanga 4: tikanga Inspection o fehokotaki'anga kătahi
| Ko T (mm) te matotoru pereti | |||
| tohu tohu tawhito | tohu tohu hou | ||
| Te matotoru pereti | Datum kuhu | Te matotoru pereti | Datum kuhu |
| ≤3.2 | I runga ake i te 0.2 * t | t≤4.0 | I runga ake i te 0.2 * t |
| 4.0＜t≤4.5 | Kei runga ake i te 0.8 | ||
| 3.2~4.5（Kei roto 4.5） | Kei runga ake i te 0.7 | 4.5＜t≤8.0 | Kei runga ake i te 1.0 |
| t9.0 | Kei runga ake i te 1.4 | ||
| ＞4.5 | Kei runga ake i te 1.0 | t≥12.0 | Kei runga ake i te 1.5 |
| Tuhipoka: Ko te whakapiri o te pereti angiangi me te pereti matotoru kei runga i te pereti angiangi | |||
(1.2) Datum fehokotaki'anga (me te roa o te waewae e tohu ana i te kuhu)
| Ko L (mm) te roa o te waewae | |
| Te roa o te waewae | Datum kuhu |
| L≤8 | I runga ake i te 0.2 * L |
| L＞8 | runga ake i te 1.5mm |
(2) Ko te inenga o te urunga o te whao (ko te tawhiti a me te b ko te urunga urunga)
（3）Utauta tirotiro mo te uru ki roto
Hipanga 5: Ripoata tirotiro mo te urunga me te rokiroki o nga tauira
(1) Ripoata mo te tirotiro i te kuhu urunga:
a.Te taapiri i te hoahoa whitinga o te waahanga kua tirotirohia
b.Tohua te waahi inenga o te kuhu wea ki te hoahoa
c.Te taapiri raraunga
(2) Ko nga ture mo te tiaki i nga tauira uruhanga whakapiri:
a.Te rokiroki o nga waahanga anga S mo te 13 tau
b.Ko nga waahanga whanui me pupuri mo te 3 tau
c.Mena ka tohua i roto i te tuhi, ka whakatinanahia i runga i nga whakaritenga tuhi
(Ko te mata tirotiro urunga ka mau ki te whakapiri maramara hei whakaroa i te waikura)
Wā tuku: Tihema-22-2022