Pada Earraich Àrd-Neart Grinneichte
Pròiseas làimhseachaidh uachdar
1. Dubhadh (gorm) Tha na ceanglaichean a tha ri dubhadh air an cur anns an tanca fuasglaidh (145±5 °C) de ocsaidear sodium haidreocsaid (NaOH) agus sodium nitrite (NaNO2) gus teasachadh agus ocsaideachadh, gus am bi uachdar a’ cheangail mheatailt a’ gineadh film magnetach ferric tetroxide (Fe3O4), mar as trice tha an tighead 0.6-0.8μm, dubh no gorm-dubh. Tha na h-inbhean HG/20613-2009 agus HG/T20634-2009 airson ceanglaichean airson soithichean cuideim ag iarraidh làimhseachadh gormaidh.
2. Fosfáiteachadh Tha fosfáiteachadh na phròiseas de ath-bhualadh ceimigeach is dealan-cheimigeach gus film tionndaidh ceimigeach fosfáit a chruthachadh, agus canar film tionndaidh fosfáit ris an fhilm tionndaidh fosfáit a thèid a chruthachadh. Is e prìomh adhbhar fosfáiteachadh dìon a thoirt don mheatailt bhunaiteach agus casg a chuir air a’ mheatailt bho bhith air a chreimeadh gu ìre àraidh, gus comas greamachaidh agus an-aghaidh creimeadh sreath film a’ pheant a leasachadh mus tèid a pheantadh, agus gus suathadh agus lubrication a lughdachadh sa phròiseas obrach fuar meatailt. Feumar studs dà-cheann le trast-thomhas mòr airson soithichean cuideam a bhith air am fosfáiteachadh.
3. Galvanachadh teth-bhogadh Is e galvanachadh teth-bhogadh a bhith a’ bogadh nam pàirtean stàilinn às an meirg anns an t-sinc leaghte aig teòthachd àrd timcheall air 600 °C, gus am bi uachdar nam pàirtean stàilinn ceangailte ris an t-sreath sinc, agus cha bu chòir tiughas an t-sreath sinc a bhith nas lugha na 65μm airson pleitean tana fo 5mm, agus nach bu chòir a bhith nas lugha na 86μm airson pleitean tiugh 5mm agus os a chionn. Gus a bhith an aghaidh creimeadh.
4. DacrometIs e Dacromet an giorrachadh agus an eadar-theangachadh de DACROMET, ris an canar Dacromet, Dacromet, Dicron. Canar còmhdach sinc-cròmium ris ann an Sìona, agus is e seòrsa ùr de chòmhdach an-aghaidh creimeadh a th’ ann le pùdar sinc, pùdar alùmanaim, searbhag cròmach agus uisge dì-ionichte mar na prìomh phàirtean. Chan eil duilgheadas ann le haidridean a’ briseadh agus tha an cunbhalachd ro-luchdachadh torque math. Ge bith dè na draghan àrainneachdail a th’ ann an cròmium sia-bhàrsach, is e dha-rìribh an fheadhainn as freagarraiche airson luchd-ceangail àrd-neart le riatanasan àrda dìon creimeadh.
Meud
Paramadairean
| Trast-thomhas Ainmeil | Φ2 | Φ2.2 | Φ2.5 | Φ3 | Φ3.5 | Φ4 | Φ5 | Φ6 | Φ7 | Φ8 | Φ10 | Φ12 | |
| d | mionaid | 2.1 | 2.3 | 2.6 | 3.1 | 3.6 | 4.1 | 5.1 | 6.1 | 7.1 | 8.1 | 10.2 | 12.2 |
| as àirde | 2.4 | 2.6 | 2.9 | 3.4 | 3.9 | 4.4 | 5.4 | 6.5 | 7.5 | 8.5 | 10.7 | 12.7 | |
| n | Meud Ainmeil | 0.9 | 1 | 1 | 1.3 | 1.3 | 1.5 | 1.8 | 2.5 | 2.5 | 3 | 3.5 | 4 |
| as àirde | 1 | 1.1 | 1.1 | 1.4 | 1.4 | 1.6 | 1.9 | 2.65 | 2.65 | 3.15 | 3.7 | 4.2 | |
| mionaid | 0.8 | 0.9 | 0.9 | 1.2 | 1.2 | 1.4 | 1.7 | 2.35 | 2.35 | 2.85 | 3.3 | 3.8 | |
| h | Meud Ainmeil | 0.5 | 0.6 | 0.6 | 0.8 | 0.8 | 0.9 | 1.2 | 1.6 | 1.6 | 2 | 2.2 | 2.5 |
| as àirde | 0.6 | 0.7 | 0.7 | 0.9 | 0.9 | 1 | 1.3 | 1.7 | 1.7 | 2.1 | 2.35 | 2.65 | |
| mionaid | 0.4 | 0.5 | 0.5 | 0.7 | 0.7 | 0.8 | 1.1 | 1.5 | 1.5 | 1.9 | 2.05 | 2.35 | |
| H | mionaid | 1 | 1.2 | 1.2 | 1.6 | 1.6 | 1.8 | 2.4 | 3.2 | 3.2 | 4 | 4.4 | 5 |
| as àirde | 1.2 | 1.4 | 1.4 | 1.9 | 1.9 | 2.1 | 2.8 | 3.8 | 3.8 | 4.7 | 5.2 | 5.9 | |
| gach 1000 aonad = kg | 0.033 | 0.050 | 0.053 | 0.11 | 0.12 | 0.18 | 0.36 | 0.83 | 0.93 | 1.6 | 2.53 | 3.82 | |
| Trast-thomhas Ainmeil | Φ14 | Φ16 | Φ18 | Φ20 | Φ22 | Φ24 | Φ27 | Φ30 | Φ36 | Φ39 | Φ42 | Φ45 | |
| d | mionaid | 14.2 | 16.2 | 18.2 | 20.2 | 22.5 | 24.5 | 27.5 | 30.5 | 36.5 | 39.5 | 42.5 | 45.5 |
| as àirde | 14.7 | 17 | 19 | 21.2 | 23.5 | 25.5 | 28.5 | 31.7 | 37.7 | 40.7 | 43.7 | 46.7 | |
| n | Meud Ainmeil | 4.5 | 5 | 5 | 6 | 6 | 7 | 7 | 8 | 10 | 10 | 12 | 12 |
| as àirde | 4.7 | 5.2 | 5.2 | 6.2 | 6.2 | 7.25 | 7.25 | 8.25 | 10.25 | 10.25 | 12.25 | 12.25 | |
| mionaid | 4.3 | 4.8 | 4.8 | 5.8 | 5.8 | 6.75 | 6.75 | 7.75 | 9.75 | 9.75 | 11.75 | 11.75 | |
| h | Meud Ainmeil | 3 | 3.5 | 3.5 | 4 | 4 | 5 | 5 | 6 | 6 | 6 | 7 | 7 |
| as àirde | 3.15 | 3.7 | 3.7 | 4.2 | 4.2 | 5.2 | 5.2 | 6.2 | 6.2 | 6.2 | 7.25 | 7.25 | |
| mionaid | 2.85 | 3.3 | 3.3 | 3.8 | 3.8 | 4.8 | 4.8 | 5.8 | 5.8 | 5.8 | 6.75 | 6.75 | |
| H | mionaid | 6 | 7 | 7 | 8 | 8 | 10 | 10 | 12 | 12 | 12 | 14 | 14 |
| as àirde | 7.1 | 8.3 | 8.3 | 9.4 | 9.4 | 11.8 | 11.8 | 14.2 | 14.2 | 14.2 | 16.5 | 16.5 | |
| gach 1000 aonad = kg | 6.01 | 8.91 | 9.73 | 15.2 | 16.5 | 26.2 | 28.7 | 44.3 | 67.3 | 71.7 | 111 | 117 | |
| Trast-thomhas Ainmeil | Φ48 | Φ52 | Φ56 | Φ60 | Φ64 | Φ68 | Φ72 | Φ80 | Φ90 | Φ100 | |
| d | mionaid | 49 | 53 | 57 | 61 | 65 | 69 | 73 | 81 | 91 | 101 |
| as àirde | 50.5 | 54.5 | 58.5 | 62.5 | 66.5 | 70.5 | 74.5 | 82.5 | 92.5 | 102.5 | |
| n | Meud Ainmeil | 12 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 |
| as àirde | 12.25 | 14.25 | 14.25 | 14.25 | 14.25 | 14.25 | 14.25 | 14.25 | 14.25 | 14.25 | |
| mionaid | 11.75 | 13.75 | 13.75 | 13.75 | 13.75 | 13.75 | 13.75 | 13.75 | 13.75 | 13.75 | |
| h | Meud Ainmeil | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
| as àirde | 7.25 | 8.25 | 8.25 | 8.25 | 8.25 | 8.25 | 8.25 | 8.25 | 8.25 | 8.25 | |
| mionaid | 6.75 | 7.75 | 7.75 | 7.75 | 7.75 | 7.75 | 7.75 | 7.75 | 7.75 | 7.75 | |
| H | mionaid | 14 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 |
| as àirde | 16.5 | 18.9 | 18.9 | 18.9 | 18.9 | 18.9 | 18.9 | 18.9 | 18.9 | 18.9 | |
| gach 1000 aonad = kg | 123 | 182 | 193 | 203 | 218 | 228 | 240 | 262 | 290 | 318 | |















