2011年9月2日星期五

Reactor for the synthesis of food

Food can be divided into two types, one is to take over the natural food you can eat, and the other is the synthetic food, through the stainless steel reactor in the synthesis, extracted from a new food, and this is stainless steel reaction vessel containing the food processing machines. Healthy food can be divided by function: nutritional supplement type, anti-oxidized (longevity-type), diet type, adjuvant therapy type. Among them, the health functions of nutrient supplements is to supplement one or more essential nutrients the human body. And functional health food, it is through its functional components, play a specific, special regulatory function.

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Compressive strength of heat exchanger tube


Compressive strength of heat exchanger tube

     Foreign companies are using impregnated graphite tube, pipe specifications for? 50mm × 7mm. After the second high-temperature graphite graphite carbon tube, pipe internal heat exchanger has many small gaps, through the vacuum impregnation process, the gap was filled resin, good permeability resistance, tensile strength than the domestic high-pressure graphite tube . Because a high degree of graphite, so as the heat exchanger material, such heat exchangers have higher heat transfer coefficient, but the bending strength (vertical), the compressive strength slightly lower than the pressure-type graphite tube.

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Pressure vessel welding procedure


Pressure vessel welding procedure qualification

     Assessment of pressure vessel welding steel welding should be reliable based on performance tests and to complete the product prior to welding.

     Welding procedure qualification process: development of pressure vessel welding instructions, according to the provisions of this standard welding specimen, test specimen and the specimen, determine whether the welded joint performance with the required proposed welding procedure qualification report. To verify the welding unit correctness of the development of welding technology.
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Pressure Vessel Welding evaluation methods


Pressure Vessel Welding evaluation methods
   

When assessing welding butt weld, butt weld test piece used; assessment fillet welding, the use of fillet weld specimen. Butt weld specimen assessment of qualified welding process is also applicable to fillet; assessment combined pressure vessel weld (butt weld fillet plus) welding process, according to the pressure vessel welds penetration welds required to determine the use of combination specimen or butt or fillet weld test specimen pieces.

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