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Industrial Aluminium Profile To Prevent The Lack Of Aging Or Excessive Hardness
Oct 24, 2017

Industrial Aluminium Profile in the production and processing, how hardness control is the key, slightly unqualified, will give users trouble, then how to solve the Industrial Aluminium Profile alloy hardness too low?

1, the setting and control of aging temperature of aluminum profile: Usually, there is some error in the time of aging furnace and aging stove, setting table temperature should be set according to the actual temperature of the furnace, China's recycled copper technology and market and pay close attention to the fluctuation of aging temperature.

2, Aluminum profile aging insulation: to strictly in accordance with the requirements of the process of aging, insulation time should be appropriate to prevent the lack of aging or excessive and lead to hardness.

3, Aluminum extrusion box can not be too dense, material and material between the interval, in particular, not ventilated small materials, thicker spacing more to be larger, pipe and small materials, sheet material together with a box, the tube to put down the surface so that is conducive to the aging cycle to send wind.

4, aluminum material before the furnace to be 6xxx of other special alloy and ordinary 6063 alloy separate furnace aging, because the production of the reason is really to be with the furnace aging, the special alloy to take the process of aging.

Industrial Aluminium Profile profiles in the surface treatment will produce a lot of waste water, and the waste water has a certain amount of harmful substances discharged, if not handled, will have a certain impact on the environment, then Industrial Aluminium Profile wastewater treatment of waste water treatment technology, the following we specifically understand.

1. Sources and types of surface treatment wastewater from aluminum profiles

Aluminum surface treatment of waste water has pretreatment of the oil in and after the acid washing water, alkaline washing water after alkali corrosion, acidic washed water after acid etching, acidic washed water after oxidation, waste acid, waste alkali and small electrophoretic paint wastewater produced by ni2+, sn2+, acidic washing water, electrophoresis paint ion exchange device. The wastewater is mixed with acidic, containing al3+, ni2+, sn2+, sn4+, +, cr3+ and other cations, as well as $modeltype, F, $modeltype, cl, alo2-, ac-and other anions,Industrial Aluminium Profile  as well as surfactants and acrylic resins and other organic compounds. Waste sulfuric acid produced by degreasing neutralization and waste sulfuric acid produced by oxidation, waste liquid produced by coloring, waste acrylic liquid produced by electrophoretic paint, and ni2+, F and other waste liquid produced by sealing hole.

2. Measures to reduce effluent and waste water emissions

The methods of reducing waste water and waste water have reasonable control time and control loading angle to reduce the amount of tank fluid, and to use two level three countercurrent rinse to reduce the consumption. After acid etching and degreasing, washed water is used for washing after alkali corrosion, and water washed after oxidation is used for acid etching and degreasing after washing. In addition, in order to reduce or avoid waste water and waste liquid emissions, the production line should design and use a variety of recovery devices, such as acid etching recovery device, alkali corrosion recovery device, anodized aluminum device, color ro recovery device,Industrial Aluminium Profile  electrophoresis paint RO recovery device, the use of these recovery devices can reduce the amount of waste water and waste liquid emissions to the maximum, At the same time, the maximum reduction of production costs.

3. The principle and method of treating wastewater from surface treatment of aluminum profile

The waste water produced by surface treatment of aluminum profile is mainly acid and alkali wastewater, containing a small amount of harmful anions and cations, such as ni2+, sn2+ and F, and the treatment method is acid-base neutralization. The waste water generally assumes the acidity, must add the alkali neutralization, the adjustment ph value to 7-8.5. At the same time in the process of cationic al3+, ni2+, sn2+, cr3+ and so on, the formation of hydroxide precipitation. Through the medium and sedimentation of the waste water pump into the condensate trough, at the same time with the quantitative pump into dissolved polyamide flocculant and wastewater condensation, condensate after the wastewater into the sedimentation tank, sedimentation method has inclined plate precipitation method,Industrial Aluminium Profile  air flotation method, centrifugal precipitation method, the author thinks that the use of centrifugal sedimentation method is relatively stable, after precipitation, The clear liquid enters the discharge tank or the reservoir after overflow from the upper overflow mouth.