Jewelry they die process is an important step in jewelry processing, a process jewelry processing in long, it is up to thick slab repair jewelry, craft to reach the beautiful shape, smooth surface. Every piece of jewelry lost wax casting blank out through,shall be a

Piece by benching worker manual trimming, the grinding, they die after the jewelry tojewelry inlaid, polishing, electroplating and other processing, they die in the process if the contusion mark, the surface is not smooth, problems such as asymmetry floriation,will directly affect the product’s appearance, for the following

Inlaid stone, polishing, electroplating and other processes will affect.

They die process generally includes a trim, contusion, repair, polishing severalprocess, different jewelry, which they die process is slightly different, in this paper, afemale as an example, to elaborate jewelry tools, technological process and matters needing attention they die of.

1 they die jewelry tools

They used die jewelry tools mainly crane, welding tools, hacksaw, file, and other small accessories etc.. The main function of crane is matched with various cutters andsandpaper for jewelry grinding, drilling and other operations; welding tool for weldingdifferent parts of general jewelry separation, cases

Such as bracelets, pendants and so on, are also used to repair jewelry surface of Chlamydia; file used to burr, uneven surface of jewelry in the local dressing, bow sawis used to cut off the water on the jewelry, change the ring size.

2 they die process

2.1 ring shaping

Because of the metal solidification in casting process leads to shrinkage, ring ring is not round, the first step is to hold the mold ring ring trimmed into a rounded.

The ring is tightly sheathed in iron ring, one end of the ring is inserted into the tablewith fine holes or directly placed on solid place, as shown in Figure 1, the left hand holding the ring rail, the left thumb and forefinger and ring ring, with a hammer hit thering iron front force, when iron

Ring hammer to iron, with the left hand thumb and index finger will ring into the ringiron coarse a toggle, in after beating to observe whether can cling to the ring ring ringring ring to iron, once close to the ring iron, that ring ring has become round, this time should stop beating

, avoid ring ring expansion. Remove the ring, can use the same on the way, when thehammer to the ring iron, with the left hand thumb and index finger will ring into the ringiron thin section of a ring, can be removed. If the band is wide, should also be ring ring in turn to

The ring iron, continue to step the same, that is on both sides of the rounded ring.

2.2 repair contusion

Repair CuO is a critical step, a request to remove the burr, ring spot and rugged place, the basic shape on the other hand, or destruction of jewelry, jewelry the flat toflat, the crooked places to bending, curved transition to natural beauty. This requires

Enough flexibility in the use of file, contusion and large plane can use bamboocontusion contusion contusion or semicircle, surface and surface phase placegenerally want to use bamboo contusion, and to control the direction of contusioncontusion, plane, file close to the workpiece surface to push forward, down curvedforward at the same time also, file

Along the arc bending direction.

Lost wax casting jewelry blank out through the nozzle, stick has been cut, but in thejewelry blank will leave residual water stick, if the nozzle rod long residual, need tocarry on the sawing process with a hacksaw, if water stick residual is short, can be directly used a file to import

Repair file, as shown in figure 2. Need to pay attention to is, repair CuO water stick,file should be along a ring ring bending direction do curvilinear motion, to ensurewater roller are blunted, stick in water at the ring is an arc, rather than a plane.

In general, ring ring on both sides of the ring plane, can be attached to the stationplug placement, as shown in Figure 3, with bamboo contusion contusion orsemicircular ring ring on both sides of the file, and insert mouth ring connected local general curve transition, in order not to hurt the rabbet in buckling process, close towith mouth

Place to use bamboo contusion, and to ensure that the original transition modelling,can not defeat into a plane.

Contusion and inner ring ring, the ring vertical station plug placed, pinch the ringfinger, contusion do with round arc movement along the ring, the ring inner contusion flat, as shown in figure 4. In buckling process should pay attention to not muchfrustration, ring the same thickness should be consistent, ring made of thin places

Du to thick place, transition to uniform.

Need to pay attention to is, file limited to repair CuO nozzle, burr and rugged place,other do not need to use the file in place, do not want to make a file, which is greatbecause the amount of grinding file, excessive use of the file will result in a loss of precious metal.

2.3 repair trachoma

Repair after contusion, carefully check the ring, ring surface observation of whether there is a sand hole, as shown in figure 5. If it is found that the sand holes, in polishedbefore, should repair the trachoma. In the repair before, first with a fine of broom umbrella needle or small will blister lightly polished, remove the trachoma

The oxide and grease, in order to facilitate the flux flow, as shown in figure 6. Repair,the first small in welding clamp tip stick on the flux, and the flux is stuck with a little borax, first with the fire ring is heated to red hot state, and then immediately the flameovershoot into line, the flame front

In the sand holes, as shown in Figure 7, the sand holes at the red immediately after,welding clamp tip into the sand flux, flux melting after filling of trachoma. Trachomaafter repair, the iron ring into the cup, with boiling water for alum, borax and oxidesolder residue, the most

After he will repair the solder joints after file.

2.4 grinding

After the repair after contusion, inevitably leave contusion mark, in addition, some"equivocate" place is blank contusion is not, the need for further trimming to these places with sandpaper, grinding jewelry is the main tool of crane, sand bar, sand,flying saucer, a scanning probe tip

Jewelry tools.

Sand bar is mainly used to with the crane on the inner ring and the outer ring ring ringgrinding, polishing, sand bar should be close to the ring, ring, ring arc along the back and forth motion, as shown in Figure 7, the movement speed to adapt with the hoistspeed, sandpaper in the ring on a moving distance suitable

When the big one, to avoid grinding one point one points and leave the sandingmarks.

Some of the inner concave areas, smaller or rabbet floriation place, you need to usesandpaper grinding tip, in polish before, should be used carefully and needle theswinger, as shown in Figure 10, the use of a scanning probe, attention should be paid to hoist speed can not be too large, to slow and all the uniform scanning

If the speed is too fast, too fast speed, likely due to sweep the needle slide to other places, at the same time speed lead to sweep the needle fever and passivation, andthen pointed sandpaper polished.

The flying saucer is mainly used to treat the crevice and "equivocate", as shown in Figure 11, 12 shows, "equivocate" place is generally two surfaces intersect, tipsandpaper incapable of action, only the use of the flying saucer to burnish, attention should be paid to the polished, flying saucer size should be the basic and beaten

Grinding place the same size, because the flying saucer is soft, strength is not goodcontrol, it is difficult to grind plane effect, the grinding, polishing should only intersect,don’t

A large area of grinding, so as not to leave traces.

Through the above process, it basically completed a ring they die, they die is completed, can from the following several aspects to evaluate the mold process is good or bad, first they die after the jewelry to restore the original shape, there arelarge differences can not and the dimensions of the original, this is

The primary purpose of the model; secondly, they die after the jewelry to meet the aesthetic requirements, the size of each component proportion, transition curve is beautiful, with mouth, decoration should be symmetric. In addition, jewelry to bepolished, crack, "equivocate" places should be polished to, can not leave

Dead, burr, mouth stick, rugged place must be polished.

They die not ordinary people think of simple grinding and polishing, which comprises acontusion, welding, grinding, sawing process, including plastic, contusion, repair,repair grinding process, the main technical difficulty is to be able to use all kinds of jewelry jewelry tools<