Method for quickly making steel seal by hand

1, first of all, we should design the text and the outline of the outer circle on the steel seal, and then go to the printing shop to copy it with the printer.

Preparation materials: olive film, round steel head, hydrochloric acid, hydrogen peroxide and washing powder.

2. Gently smooth one side of the prepared round steel head with fine sandpaper, and then wash it with washing powder for later use.

3. Then gently remove the protective touch on one side of the olive film and stick it on the round steel head.

4. Match the printed steel seal (with sulfuric acid paper) with the round steel head, expose it to the sun for a few minutes (2-5 minutes), soak it in the developer for 2 minutes, and then wash out the pictures and texts with clear water.

5. Stir hydrochloric acid and hydrogen peroxide in proportion, then put the developed and cleaned round steel head into the prepared solution for corrosion and wash it with water. The depth of the text can be grasped by controlling the length of time. )

Extended data:

There are two kinds of steel printing machines: manual and electric. Manual stamp printing machine has high labor intensity and low efficiency, which is unbearable for operators; Electric stamp printing machine is mainly composed of motor, reducer and cam mechanism. This product is bulky, noisy, time-consuming and laborious to operate, consumes a lot of electricity and is often blocked.

The main materials for manufacturing steel seals are metal and plastic. Such as steel, brass and plastics, only brass is used at present.

Steel seal is an important seal specially used by the national government and other authoritative departments to identify the authenticity of certificates, documents and certificates. Such as graduation certificate, work permit, marriage certificate, notarial certificate, etc. Need to be stamped with steel seal.

References:

Baidu encyclopedia-steel seal