Name: Production technology transfer of High efficiency Non-toxic refiner for aluminum alloy smelting
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Production technology transfer of High efficiency Non-toxic refiner for aluminum alloy smelting

Ⅰ、Introduction of technical achievements and

products

Project Background Technology:

Aluminum or aluminum alloy smelting, due to the charge into the

factors such as water and breathe in alloy containing a large amount

of hydrogen in the aluminum liquid, the solubility of hydrogen in

aluminum alloy have larger, a large amount of precipitation to form a

pinhole in the solidification process, therefore, aluminum alloy

smelting usually has to be refined, the degassing treatment and

other nonmetallic inclusion removal, etc., in order to improve the

quality of aluminum alloy products.

In traditional refining metamorphic process, generally used

hexachloroethane and other chloride as the main ingredients of

refining agent, high temperature melting, the solvent release large

amounts of carbon tetrachloride and chlorine in bad odor with

strong excitant and corrosive gases harmful smoke, severe corrosion

workshop equipment, makes the environment is seriously polluted

and operating workers threats to health. In order to solve this

problem, an environmentally friendly non-toxic refining agent for

aluminum alloy was developed through repeated experiments. The

operation is smokeless, tasteless and non-toxic. The major transition

from toxic refining to non-toxic refining has been completed and a

new way of aluminum alloy refining has been opened up. It not only

purifies the environment, but also prevents the harm of toxic gas to

workers.

Ⅱ、Product features and usage

Product technical indicators and characteristics:

By a variety of aluminum alloy non-toxic refining agent on the

aluminium refining effect of salt compounds according to certain

proportion by the special craft processing and become, with refined

cans with nitrogen or argon gas as the carrier, the uniform injection

liquid aluminum interior, and realize the double purification of gas

and the flux of liquid aluminum, used primarily as a series of

aluminum alloy and pure aluminum melt refining material, can have

very good refining effect, It has the characteristics of environmental

protection and high efficiency.

Main advantages:

1. The new generation of non-toxic refining agent selects

high-quality raw materials and removes its harmful ingredients. There is no smoke, dust and no smell in the refining process, which

meets the requirements of environmental protection and truly

realizes non-toxic, environmental protection and high efficiency.

2, in liquid aluminum can release a variety of gases for refining, both

gas refining and flux refining advantages, degassing, slag removal

into one, slag removal ability is strong, degassing effect is good;

3, add less, flux utilization rate is high, simple and convenient

operation, reduce the labor intensity of workers;

4, the treated slag is dry, powdery, the slag and liquid aluminum

separation is good, loose and light, easy to remove, does not corrode

the plant equipment, does not stick to the furnace and tools, easy to operate, especially suitable for industrial parks and high

environmental protection requirements of the enterprise use.

Usage and dosage:

In the refining temperature range, put the quantitative refining

agent into the duster storage tank and cover it well, first pass

nitrogen (pressure is 1.2 ~ 1.8kg/cm2) and then open the switch

below the refining tank. When the iron pipe has the refining agent

spewed out, insert the iron pipe into the aluminum liquid for

horizontal moving, the insert depth should be 3/4 of the depth of the

iron pipe end in the aluminum liquid. Move the iron pipe around 2 ~

3 times before and after, do not touch the furnace wall, in order to

prevent blocking the pipe, in the refining time (6 ~ 20 tons for 10 ~

15 minutes), the flux is sprayed, and then the iron pipe from the

liquid aluminum, shut off nitrogen.

Recommended dosage: 0.2-0.5% of melt

The specific demand depends on the amount of inclusion and the

actual amount of inclusion should be obtained from practice.

Matters needing attention:

A. Control the speed of powder feeding by opening the size of the

switch at the bottom of the refining tank, and try to spray flux during

the refining time

B. Control the churn height of liquid aluminum by controlling the

nitrogen pressure. On the premise of not blocking the pipe, it is

better to have a smaller churn, which is better below 15cm

Description: gray black powder, 2.5kg/ bag

Processing temperature: 700℃ ~ 760℃

Ⅲ、Application field, market prospect and industrial

production conditions of project products

Aluminum alloy non-toxic refining agent is mainly used for refining

of pure aluminum, aluminum alloy and recycled aluminum, to

remove the dross on the surface of liquid aluminum, adsorb the slag

near the surface, and can also be used for frying slag. It is one of the

necessary fluxes for aluminum and aluminum alloy smelting, with

large market demand and broad application prospect.

Aluminum alloy non-toxic refining agent production equipment and

process is relatively simple, mainly drying furnace, crushing

equipment, mixing equipment, simple packaging equipment,

equipment investment is less, the production process is easy to

master.

Ⅳ、Analysis of technical and economic benefit of project

industrialization and environmental evaluation

Aluminum non-toxic refiners cost about 1300-1500 yuan/kg per ton

of raw materials, and the average market price is about 4000 ~ 5500

yuan/ton. The cost of raw materials fluctuates with the market price

and varies with the production volume. Raw material market is easy

to buy, mass production to form a scale, with good economic

benefits.

The raw materials used in the production of aluminum refining agent

are non-toxic common chemical raw materials, and there is no

discharge of sewage, waste gas and waste residue in the production

process, which will not pollute the environment.

Ⅴ、Methods of technology transfer and cooperation

One-time technology transfer, provide a full set of technical formula, production process, equipment list and raw material procurement manufacturers, construction specifications, etc.

Can study in my company, on-site training, learn so far. Engineers can also be sent to provide on-site technical services to guide the production of qualified products. At the same time, we can provide a complete set of solutions such as plant and equipment selection, how to promote the market, raw material procurement, how to make color plate, how to reduce production cost and improve production efficiency, so that you can put into production in the shortest time and make profits quickly. You can change the formula as needed. And a professional engineer consultant, can long-term tracking technical guidance, remove worries.

Detailed project feasibility analysis report on request.

Product technology for large-scale production of mature technology, technology transfer fee call to discuss.

Non-toxic refiners for aluminum smelting