The process of making antler standing crane

Traditional Bronze Making Process

(1) Use special clay to make a solid clay mold of the bronze to be cast

(2) Turn the outer model in pieces on the clay mold

(3) Trim the outer model and add a detailed pattern engraved on it, and put the small pieces of the outer building into a large piece (4) Make the corresponding inscriptions in the predetermined position of the bronze

(5) Scrape off a layer of thickness on the clay mold. A layer of thickness, this layer of empty space is the thickness of the bronze to be cast

(6) the production of the gate and risers after the profile model

(7) with a temperature of about 600 degrees Celsius baked into ceramic, the synthesis of the whole Fan preheated and filled with copper

(8) broken, take out the bronze (1) clay Fan material molded out of the smoker inside the Fan, so that it is shade drying.

(2) Wax sheet inside the inner model.

(3) Sheet carved hollow. Carve flowers.

(4) The wax material is used to mold the coiled dragon and the wax pillar with the mouth.

(5) Making wax sprues, venting channels and soldering into a whole set of wax molds.

(6) The modeling material is diluted into a slurry and repeatedly applied to the outside of the wax mold to form the thickness necessary to withstand the casting of copper. After drying, take the drier model material to cover the mud layer, and then dry again to form the whole model.

(7) With the cup facing downwards, bake the model material, the wax will melt and flow out, and bake it until it reaches 600-850 degrees Celsius to form a pottery model.

(8) Preheating the potter's model to sintering temperature before injecting bronze liquid.

(9) copper solidification and cooling, remove the inner and outer model, cut off the gate.

(10) The complex shape of the complete smoker, to be properly polished. Antique bronze production process is a lost wax casting. Lost wax casting belongs to a kind of precision casting, as the name suggests, is a higher requirement of craftsmanship. It is very different from the process method in most customers' imagination, some customers will wrongly think: "casting is not just making a mold, pouring one out of one, very simple." In fact, it is not so.

Lost wax casting process:

The first step is to make a wax mold. Every bronze must first make a wax pattern. That is to say, what the wax pattern is, the bronze is what it is. The wax model is divided into four parts:

First, it is shaping, that is, using wax to carve out the first wax model;

Secondly, it is to carve out the first wax model to make molds (molds made of gypsum or silicone rubber), in order to be able to reduce the need for each time to be plastic, because through the molds can be and the first wax model and the first wax model exactly the same as the wax model of a lot of wax models;

Then it is through the molds of the molds of the molds of the molds of the molds, that is, dissolving the wax and then passing through a pressure device. The wax is melted and then pressed into the mold by the pressure equipment to shape it;

The pressed wax pattern needs to be modified, so the wax pattern has to be refined, i.e., the modifier applies the special tool to modify the wax pattern one by one (the quality of the refined wax pattern is an important part of the quality factor); finally, the group pattern is formed, i.e., the refined wax pattern is combined together (in order to facilitate the casting).

The second step, crusting, dewaxing, baking and casting, the wax model must first be hung with sand and crusted. Grouped wax into the pre-prepared colloidal solution, and then the refractory quartz sand from fine to coarse, over and over again, layer by layer coated in the wax, so that the wax wall of the inner and outer crust (so that the wax is wrapped in the middle of the quartz sand layer).

The next step is to remove the wax, that is to say, put the crusted mold shell into hot water, because the wax will melt by the heat and is lighter than water, it will come out from the mold shell and float to the surface of the water, so that a cavity will be formed. Finally, the cavity of the mold shell into the roasting furnace, heating up to 800 degrees roasting, and then the melted bronze liquid into the roasting mold shell molding.

The third step is clearing, polishing and aging. Clearing is to remove the quartz sand layer on the outside and inside of the molded shell, and then use machines and equipment to polish the products after clearing, and then finally surface treat the products (chemical reaction, the formula is confidential) to achieve the desired effect.

The old is the production and an important process, nowadays unearthed bronze because of thousands of years of chemical reaction, the surface of a layer of green rust, and now to produce green rust in just four or five days, which requires modern chemical reaction to accelerate the natural corrosion of the copper, generally by the State Administration of Cultural Heritage approved by the high imitations, only the rust color a level to be made for nearly a year of time or even longer. The time is even longer. The proportion of smelting and casting and the local natural environment caused by the rust color of the artifacts is also a variety of water rust, black lacquer ancient, green lacquer ancient, red rust, etc., in order to achieve the effect of realism needs to be processed many times, and to adjust the environment at any time the pH and dryness and humidity.

Because the patina color produced after antiquing is the natural chemical reaction of copper, so even if it is the same product its patina color is not exactly the same, which makes the antique bronzes have more collection value. Lost-wax casting method Modeling Dimensioning Finished product Decoration sketching, hand-carving Scaling Modeling Turning shape Wax modeling Wax modeling Welding and assembling Pouring gate and sprue design Shelling Hardening Dewaxing Pouring Roasting Molten copper Pouring Broken shell Sanding Welding Surface treatment Rust color treatment Environmental protection treatment