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Zinc-iron alloy is a mixture of zinc and iron bonded by metallic bonds, which is a whole and exhibits uniform physical and chemical properties.
Alkaline zinc-iron alloy brightener.
1. Performance and characteristics:
1.It is suitable for alkaline low-iron-zinc-iron alloy process, and the iron content of the coating is used;
2.The coating crystallization is fine, and the brightness is white;
3.The alloy coating is easy to passivate, and the corrosion resistance of the passivated alloy coating is more than three times that of the zinc layer.
4.The plating solution is stable, easy to maintain, and can be hung plating or barrel plating (including automatic line);
5.The cost is relatively low, and the original equipment can be used to transfer the original zincate galvanizing solution to the groove.
Surface structure Plating type Characteristics.
Zero spoil n z uses a specific production process to make the surface of the coating free of visible sparks.
Zinc-iron alloy plating is a zinc-iron alloy layer, no zinc flowers, generally dull.
Its alloy has many valuable physical, chemical and mechanical properties, such as high strength and toughness, excellent corrosion resistance, good electric vacuum performance, ferromagnetism, etc.
Through alloying, it can be made into materials with special properties such as high-temperature alloys or superalloys, corrosion-resistant alloys, high-resistance alloys, and electric vacuum alloys.
It is widely used in aerospace, aviation, shipbuilding, electronics, electrical, machinery, chemical, electroplating and other industrial sectors.
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Iron-zinc alloy is sold as silver to sell copper, iron-zinc alloy as gold, which is quite promising.
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It is used in aerospace, aviation, shipbuilding, electronics, electrical, machinery, and chemical industry.
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It's all used to pretend to be **, you don't need to distinguish between them, and you don't take so many exams.
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1. The material is different
Copper is a pure metal with different constituent elements, and the element of metallic copper is Cu. Zinc alloy is an alloy, and the common element elements of zinc alloy are aluminum, copper, magnesium, cadmium, lead, titanium and other low-temperature zinc alloys.
2. The cost is different
40,000 tons of copper metal. Zinc alloy 10,000 tons, copper ** higher.
3. Hardness: Copper has high hardness and is more wear-resistant.
4. Plasticity:
Copper: Copper is widely used as a conductor for the inner core. It is used in electrical, light industry, machinery manufacturing, construction industry, national defense industry and other fields, and is second only to aluminum in the consumption of non-ferrous metal materials in China.
Copper is a red metal as well as a green metal. It is said that it is a green metal, mainly because it has a low melting point and is easy to remelt and re-smelt, so it is quite cheap to use.
Zinc alloy: good casting performance, can die cast complex shape, thin-walled precision parts, casting surface smooth. Surface treatment available:
Plating, spraying, painting, polishing, grinding, etc. It does not absorb iron, does not corrode the mold, and does not stick to the mold during melting and die casting. It has very good mechanical properties and wear resistance at room temperature.
It has a low melting point, melts at 385, and is easy to die-cast.
5. Distinguish between copper and zinc.
Physical method: Use a piece of fine sandpaper to polish the identification object, such as the rose red is copper, and the other colors are different types of copper alloys.
Chemical methods: chemical means, adding acid, bubbles are alloys, no reaction is copper, zinc can be dissolved in hot sodium hydroxide solution, copper cannot.
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Uses: 1. High-purity copper-zinc alloy filter material is widely used in various water treatment equipment, and high-purity copper-zinc alloy filter material is a simple and low-consumption method for water filtration filter material for pretreatment.
2. The addition of other trace elements in the copper-zinc alloy can play a role in descaling and anti-scaling.
3. Copper-zinc alloy is used to manufacture valves, water pipes, connecting pipes and radiators of internal and external units of air conditioners.
4. Copper-zinc alloy is widely used in electronic communications, home appliances, drinking water engineering, aerospace, hardware decoration, machinery, instrumentation and other fields.
Advantages: Copper-zinc alloy has very good mechanical properties and good corrosion resistance, electrical and thermal conductivity, and has a relatively low ** and beautiful appearance.
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Friends who know a little bit of chemistry know a little bit that pure metals without a trace of other metals exist in nature, and the properties of pure metals sometimes do not have the properties of alloys. Many metal products used in daily life are alloyed, and alloys can optimize the properties of many aspects of metals. Copper-zinc alloy is an alloy that is used more in life.
The following will introduce to you the application of copper-zinc alloy, as well as the properties and production process of copper-zinc alloy.
Applications of copper-zinc alloys:
Zinc and copper can form six phases, such as . There are three types of brass, brass and brass, and the zinc content is generally not more than 50%. Among them, H62 and H68 brass have high plasticity and strength, good formability, and are widely used, which can be used to make various complex cold stamping parts and deep drawing parts, pipe fittings for waveguide pipes and condensers, and parts for machinery and electrical appliances.
H70 brass, also known as "gun copper", is mainly used to make bullet cases and tubes. Brass products with residual internal stress, long-term storage in ammonia-containing or sulfur dioxide and other media, will produce rupture along the crystal or through the grain. This phenomenon is called stress corrosion cracking or seasonal cracking (quaternary cracking) and can be eliminated by low-temperature annealing.
High-zinc brass with a zinc content higher than 20% is prone to dezincification corrosion, and an appropriate amount of arsenic, clump skin silicon, phosphorus, antimony, etc. can be added to inhibit it.
Properties of copper-zinc alloys:
1) The melting point of most alloys is lower than the melting point of any of the constituent metals in their constituent parts;
2) The hardness is generally greater than the hardness of any metal in its components; (Special case: sodium-potassium alloy is liquid and used as a thermal conductive agent in atomic reactors) (3) The electrical and thermal conductivity of the alloy is lower than that of any component metal. Using this property of alloys, it is possible to manufacture materials with high resistance and high thermal resistance.
It is also possible to manufacture materials with special properties.
4) Some have strong resistance to poor sales corrosion.
How is copper-zinc alloy made:
One pound of 100 chains of gold and copper, one pound of dry stone from Taiyuan furnace, mix well along the fine, add charcoal, put it in an iron can to seal, heat it in the wind furnace for two nights, and finally burn it for six hours with a fierce fire; After cooling, the contents of the tank are washed to obtain golden copper, yes"Turning stones into gold. Copper is obtained by mixing siderite (ZNC3 commonly known as calamine) with red copper and charcoal.
Advantages of copper-zinc alloy:
It is characterized by high density, easy filling, good thermal conductivity, and oxidation tendency varies depending on the composition of the alloy. Among them, the crystallization temperature range of cast tin bronze is wide, and it is easy to produce shrinkage and porosity defects, and the oxidation is not strong.
The above has introduced the application fields of copper-zinc alloys, the advantages of copper-zinc alloys, and how to make copper-zinc alloys. Copper-zinc alloy is used in life is a lot, copper-zinc alloy is a very beautiful color alloy, the color of copper-zinc alloy is golden yellow, many criminals will treat copper-zinc alloy as gold to deceive, we should beware of being fooled in life, do not take advantage of small advantages. The performance of copper-zinc alloy has certain advantages compared with the two metals of synthetic copper-zinc alloy, so it is widely used, and it is recommended that you choose and use copper-zinc alloy.
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