Takelaka varahina
Fampidirana ny vokatra
Takelaka varahina vita amin'ny varahina elektrolitika, zinc ary singa madinika ho akora fototra, amin'ny alàlan'ny fanodinana amin'ny ingot, fanakodia mafana, fanakodia mangatsiaka, fitsaboana amin'ny hafanana, fanadiovana ny velarana, fanapahana, famaranana, ary avy eo famonosana. Ny fahombiazan'ny fizotran'ny akora, ny plastika, ny toetra mekanika, ny fanoherana ny harafesina, ny fahombiazana ary ny firapotsy tsara. Efa nampiasaina betsaka tamin'ny indostria elektrika, fiara, fifandraisana, fitaovana, haingon-trano ary indostria hafa izy io.
Ireo masontsivana ara-teknika fototra
2-1Simika
| Laharana firaka | Firafitra simika (%,Ambony indrindra.) | ||||||||
| Cu | Fe | Pb | Al | Mn | Sn | Ni | Zn | fahalotoana | |
| H96 | 95.0-97.0 | 0.10 | 0.03 | --- | --- | --- | 0.5 | Rem | 0.3 |
| H90 | 88.0-91.0 | 0.10 | 0.03 | --- | --- | --- | 0.5 | Rem | 0.3 |
| H85 | 84.0-86.0 | 0.10 | 0.03 | --- | --- | --- | 0.5 | Rem | 0.3 |
| H70 | 68.5-71.5 | 0.10 | 0.03 | --- | --- | --- | 0.5 | Rem | 0.3 |
| H68 | 67.0-70.0 | 0.10 | 0.03 | --- | --- | --- | 0.5 | Rem | 0.3 |
| H65 | 63.5-68.0 | 0.10 | 0.03 | --- | --- | --- | 0.5 | Rem | 0.3 |
| H63 | 62.0-65.0 | 0.15 | 0.08 | --- | --- | --- | 0.5 | Rem | 0.5 |
| H62 | 60.5-63.5 | 0.15 | 0.08 | --- | --- | --- | 0.5 | Rem | 0.5 |
Latabatra vita amin'ny vy 2-2
| CHINE | ISO | ASTM | JIS |
| H96 | CuZn5 | C21000 | C2100 |
| H90 | CuZn10 | C22000 | C2200 |
| H85 | CuZn15 | C23000 | C2300 |
| H70 | CuZn30 | C26000 | C2600 |
| H68 | ------ | ------- | ------ |
| H65 | CuZn35 | C27000 | C2700 |
| H63 | CuZn37 | C27200 | C2720 |
| H62 | CuZn40 | C28000 | C2800 |
Endri-javatra 2-3
2-3-1 Famaritana singa: mm
| Anarana | Laharana firaka (Shina) | tezitra | Size(mm) | ||
| hateviny | sakany | NY FAHARETANY | |||
| Takelaka varahina | H59 H62 H63 H65 H68 H70 | R | 4～8 | 600~1000 | ≤3000 |
| H62 H65 H68 H70 H90 H96
| Y Y2 M T | 0.2~0.49 | 600 | 1000~2000 | |
| 0.5~3.0 | 600~1000 | 1000~3000 | |||
Marika hatezerana: O. Malefaka; 1/4H. 1/4 Hard; 1/2H. 1/2 Hard; H. Hard; EH. Tena mafy.
2-3-2 Singa fandeferana: mm
| hateviny | sakany | |||||
| Hatevina mamela ny fivilian-dalana ± | Fiovan'ny sakany ± | |||||
| <400 | <600 | <1000 | <400 | <600 | <1000 | |
| 0.5~0.8 | 0.035 | 0.050 | 0.080 | 0.3 | 0.3 | 1.5 |
| 0.8~1.2 | 0.040 | 0.060 | 0.090 | 0.3 | 0.5 | 1.5 |
| 1.2~2.0 | 0.050 | 0.080 | 0.100 | 0.3 | 0.5 | 2.5 |
| 2.0~3.2 | 0.060 | 0.100 | 0.120 | 0.5 | 0.5 | 2.5 |
Fahombiazana mekanika 2-3-3
| tezitra | Faharetana amin'ny sintona N/mm2 | Fanalavana ≥% | hamafin'ny HV | |
| M | (O) | ≥290 | 35 | ------ |
| Y4 | (1/4H) | 325-410 | 30 | 75-125 |
| Y2 | (1/2H) | 340-470 | 20 | 85-145 |
| Y | (H) | 390-630 | 10 | 105-175 |
| T | (EH) | ≥490 | 2.5 | ≥145 |
| R |
---
| --- | --- | |
Marika hatezerana: O. Malefaka; 1/4H. 1/4 Hard; 1/2H. 1/2 Hard; H. Hard; EH. Tena mafy.
Teknika fanamboarana
