What is the identification method for bronze objects? How to identify brass

1. The method of distinguishing the authenticity of bronze ware: fake bronze ware is cast by the wax loss method, and there is no fan line, and there will be fine sand holes, but there is no real bronze ware.

2. See if there is a gasket in the copperware.

It can also distinguish the real from the fake, and the fake bronze does not have a gasket. The shape of real bronze ware is more complex and changeable, and the weight, sound, and rust color can also distinguish the authenticity.

3. Pattern and style: This is a key point in identifying bronze ware, Xia Dynasty.

The bronze pattern is simple, and the Shang Dynasty pattern is gorgeous and complicated, and many times the body is full of flowers, the Western Zhou Dynasty.

It is roughly the same as Shang, but it tends to be simple in the later period, and the patterns of the Spring and Autumn Period and the Warring States Period are fresh and lively, full of life, Qin and Han dynasties.

Heavy and practical, with few patterns and not as fine as the previous generation.

Precautions. The storage room must be kept dry, free of dust and air pollution, relative humidity.

Preferably below 50.

Before the utensils are put into storage, all contaminated dirt must be removed, preferably chemically protected, not coated with thick grease and oil on the bronzes, and cotton gloves must be worn when touching the bronzes, and must not be touched with sweaty hands, nor can they be packaged with oily paper or boxes.

To remove the dust on the copperware, use a soft cloth, a soft brush, a soft duster, etc., and if you need to wash it with water, you must use distilled water.

Distilled water can also be warmed, neutral soap can be used, and ammonium hydroxide cannot be used.

Acids, white powder, gauze, etc., if there is a large cleaning, it can be cleaned by professionals.

The above content refers to Encyclopedia - Bronze Ware.

It can be identified from several aspects, such as rust color, feel and sound, pattern and style, copper and instrument style.

1. Rust color.

Generally speaking, most of the bronze ware that has been handed down to this day is unearthed, and there are common green rust, red rust, blue rust, purple embroidery, etc. If the rust color is integrated with the body, the depth is consistent, solid and even, smooth and natural, then it is a naturally generated rust color. If the rust color floats on the utensils, green but not shiny, the skin is rusty, and it is not moist and dazzling, it is pseudo-rust.

2. Feel and sound.

Weigh it with your hands, and if it's too light or too heavy, you need to pay attention. In addition, you can also use your hands to tap the real thing, listen to its sound, if the sound is subtle and light; If the sound is muddy and makes a "buzzing" sound, you need to be vigilant.

3. Patterns and styles.

This is an important point in the identification of bronze objects. The pattern of Xia Dynasty bronzes is simple; The Shang Dynasty pattern is gorgeous and complicated, and many are full of flowers; The Western Zhou Dynasty was roughly the same as the Shang, but tended to be simple in the later period; The patterns of the Spring and Autumn Period and the Warring States Period are fresh and lively; The Qin and Han dynasties were practical. As for the style, it can be identified mainly from its font.

The Shang Dynasty font is regular, and the gesture is strong and generous; In the early Zhou Dynasty, the Bo Rock body was followed; In the spring and autumn period, the body of the book has a fat body and a thin body; The Warring States period gold font is not elegant; The Qin Dynasty unified the script and used the small seal.

4. Copper and utensils.

The identification of copper is relatively simple, look at the bottom of the bronze, if the brass texture is out, it is a fake; If the soles of the feet have been disguised with copper, they can be seen by scrubbing them with hot alkaline water. In addition to remembering the style and name of the bronze ware, it is also necessary to understand what era and what style of bronze was cast. For example, francium, which is square and container, appeared at the end of the Warring States period; If it is made according to three generations of work and rust color, it is a counterfeit.

History of Bronze Ware

China is the world's earliest civilization to master brass smelting technology, and the brass sheets and brass rings unearthed from the Jiangzhai site are smelted, 6,700 years ago. China's bronze smelting is also earlier, the earliest smelting bronze in China is the bronze knife unearthed from the Majiayao site in Gansu, which is 5,000 years old.

Heyday: late Shang Dynasty, early Western Zhou Dynasty, 13th century BC - 11th century BC. From the late Shang Dynasty to the early Western Zhou Dynasty, bronze art was brilliant.

The heavy wine system of the Shang Dynasty ritual vessels has been perfected, and the ornamentation of the full cloth body adopts a large number of relief carvings and flat carvings, which are exquisite. The use of exaggerated and symbolic techniques to express animal gods and monsters is unprecedentedly developed, which is both majestic and mysterious, and full of vitality. The inscription of the chronicle He appeared at the end of the Shang dynasty.

At the beginning of the Zhou Dynasty, ritual utensils followed the Shang system, and there were hints of a change to the heavy food system. The long inscription is an important feature of the bronze ritual vessels of the Western Zhou Dynasty.

Summary. Hello, according to official data: 1. Put brass into a container filled with dilute hydrochloric acid (or dilute sulfuric acid), and the bubbles on the surface are brass.

2. Put brass into a container filled with ferrous sulfate solution, and after a period of time, the color of the reagent will change, which is brass. 3. Add silver nitrate solution to turn silvery-white into brass. 4. Burn it with fire, and the brass and brass will become red.

Hello, according to official data: 1. Put brass into a container filled with dilute hydrochloric acid (or dilute sulfuric acid), and the bubbles on the surface are brass. 2. Put brass into a container filled with ferrous sulfate solution, and after a period of time, the color of the reagent will change, which is brass.

3. Add silver nitrate solution to turn silvery-white into brass. 4. Burn it with fire, and the brass and brass will become red.

The easiest way to identify brass: 1. Look at the color: Identify the copper can look at the color, pure copper is purple red, brass is light yellow, bronze is close to white, even if the surface is filed with a file.

Fake copper is generally dyed and packaged, and the surface will be exposed after being broken off with a file. 2. Listen to the sound: Identify the copper can listen to the sound, gently tap the surface of the copper, the sound of the real copper is low, it will make a "buzzing" sound, and the sound disappears slowly.

The knocking sound of the fake copper is sharp and disappears relatively quickly. 3. Use magnets: Magnets can be used to identify copper, copper is a non-magnetic substance, so when the magnet is close, it will not produce adsorption force.

Fake copper contains an iron substance that is quickly attracted when the magnet is approached.

<> can be identified by hardness, color, flexibility, magnets, etc.

1. Hardness: Copper is a metal that is not easy to break, so it can be judged by hardness.

2. Color: cut or fold the copper jewelry, look at the color of the stubble, the more white and smooth the copper surface, the higher the purity of the copper metal.

3. Flexibility: pinch the copper with your fingers, if it is copper with high fineness, it is soft and flexible, easy to bend and not easy to break.

4. Magnet: The specific gravity of copper and iron is relatively close, but copper will not be attracted by magnets, so it can be judged by magnets.

The rust color on the surface of the real bronze is green, red, purple, blue and other colors, which are bonded together with the bronze, and the rust color on the surface of the fake bronze is different. You can also listen to the sound, hit the surface of the bronze with a metal rod, the real bronze will make a small crisp sound, and the fake bronze will make a buzzing sound.

1. Look at the rust color.

The rust color on the surface of the real bronze is green, red, purple, blue and other colors, and the rust is bonded together with the bronze, the color is the same, and the appearance is smooth and natural. The rust on the surface of the fake bronzes is different shades, relatively dull, and easy to peel off.

2. Listen to the sound.

Identifying bronze objects can be heard by tapping the surface of the bronze with a metal rod, the real bronze will make a small and crisp sound, and the fake bronze will make a "buzzing" sound because of the material.

3. Look at the pattern.

Identification of bronze can see the pattern, the real bronze, the pattern on it appears simple and simple, and some have the font inscription engraved by the seal. The patterns on the fake bronzes are more delicate and complicated, which is different from the simple and simple patterns.