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Spring Steel Strip and Wire, Hardened and Tempered
Forge

Imeundwa na

Forge

11. Oktoba 2026NO
40
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Spring Steel Strip and Wire, Hardened and Tempered

A spring must bend and come back. Mild steel bends and stays bent; high-carbon steel, hardened and then tempered to a blue colour, springs back. The strip or wire is shaped soft, heated until a magnet no longer sticks to it, quenched in warm oil to harden it, then tempered: cleaned bright and heated gently until the colour runs to blue. It starts from high-carbon crucible steel. Wire is drawn while the steel is still annealed.
Juu
A day

Maagizo

1

Forge strip

Forge crucible steel at a yellow heat into strip, smoothing it with the flatter; never work it below red. Cut it to length while hot.

Vifaa kwa hatua hii:

Feleji ya kalibuFeleji ya kalibu1 kg
MkaaMkaa10 kg

Zana zinazohitajika:

Fua ya mhunziFua ya mhunzi
FuaweFuawe
Nyundo ya mhunziNyundo ya mhunzi
Kisawazishi cha uhunziKisawazishi cha uhunzi
Koleo za mhunziKoleo za mhunzi
Aproni ya NgoziAproni ya Ngozi
Glavu za kulehemuGlavu za kulehemu
Miwani ya usalamaMiwani ya usalama
2

Anneal

Heat to a dull red and bury it in dry wood ash to cool slowly overnight.

Vifaa kwa hatua hii:

Majivu ya Mti MgumuMajivu ya Mti Mgumu2 kg

Zana zinazohitajika:

Ndoo ya chumaNdoo ya chuma
3

Draw wire

For wire, forge a rod, anneal it, and draw it through the drawplate with wax, annealing after every hole. Coil or bend the springs now, while it is soft.

Vifaa kwa hatua hii:

Nta ya NyukiNta ya Nyuki10 g

Zana zinazohitajika:

Bamba la chuma la kuvuta wayaBamba la chuma la kuvuta waya
Koleo la kuvutaKoleo la kuvuta
Kibano cha meza ya kaziKibano cha meza ya kazi
4

Harden

Heat the part evenly until a magnet no longer sticks, then plunge it into a lidded bucket of warm rapeseed oil and stir it. Keep the lid at hand for flare-ups.

Vifaa kwa hatua hii:

Mafuta ya kanolaMafuta ya kanola5 lita

Zana zinazohitajika:

Fua ya mhunziFua ya mhunzi
SumakuSumaku
Ndoo ya chuma yenye mfunikoNdoo ya chuma yenye mfuniko
Koleo za mhunziKoleo za mhunzi
Glavu za kulehemuGlavu za kulehemu
5

Clean bright

Sand a stripe bright on the hardened steel so you can see the temper colours.

Zana zinazohitajika:

Karatasi ya sandarusiKaratasi ya sandarusi
6

Temper to blue

Heat it gently and evenly with the torch on fire bricks, or on a hot plate of steel, and watch the colours run straw, bronze, purple, blue. Stop at an even blue and let it cool.

Zana zinazohitajika:

Tochi ya PropaniTochi ya Propani
Tofali la motoTofali la moto
Koleo za mhunziKoleo za mhunzi
7

Test

Clamp one end in the vise and bend the free end a little: it must spring back straight.

Zana zinazohitajika:

Kibano cha meza ya kaziKibano cha meza ya kazi
Kipima-unene cha dijitali cha inchi 6Kipima-unene cha dijitali cha inchi 6
8

Troubleshooting

Spring tempering troubleshooting.

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Vifaa

5

Zana Zinazohitajika

18

CC0 Umma Wote

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