A semi-solid slurry pulping head
A semi-solid slurry and pulping technology, which is applied in the field of semi-solid slurry pulping head, can solve problems such as uneven temperature of molten metal, influence on production cost, production efficiency and product quality, long cooling time, etc., and achieve internal crystal The effect of uniform structure, shortening the pulping time, and uniform metallographic structure
Active Publication Date: 2019-12-13
苏州金澄精密铸造有限公司
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Problems solved by technology
This kind of pulping method has the disadvantages of fast wear of the stirring rod, high cost, long stirring time, and long cooling time, which affect the production cycle and efficiency. The processed metal liquid has defects such as uneven temperature and uneven crystal structure, which seriously affects production. Cost, production efficiency and product quality
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[0023] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0024] see figure 1 , image 3 The pulping head 10 shown for semi-solid slurry pulping includes a pulping rod 2 for inserting into the pulp to be prepared, a coupling seat 1 arranged at the top of the pulping rod 2, and the coupling seat 1 and the pulping rod 2 A closed cavity is formed between them. Specifically, the pulping rod 2 has a hollow cavity with an opening facing upwards, and the coupling seat 1 is arranged on the top of the pulping rod 2 and closes its opening so that a closed cavity is formed between the coupling seat 1 and the pulping rod 2 .
[0025] At least the lower rod body of the pulping rod 2 is densely provided with micropores with air-permeable function. The diameter of the micropores is between 0.5 μm and 25 μm, and the porosity is between 45% and 55%. The inert gas with a certain pressure i...
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Abstract
The invention discloses a semi-solid pulp pulping head which comprises a pulping rod for being inserted into pulp to be prepared and a linkage seat arranged at the top of the pulping rod, a sealed inner cavity is formed between the linkage seat and the pulping rod, at least the lower portion of a rod body of the pulping rod is densely provided with micro holes with a ventilation function, and the upper portion of the linkage seat or the pulping rod is furthermore provided with a medium inlet communicating with the sealed inner cavity. In the puling work, inert gas is continuously introduced into the sealed inner cavity, the inert gas seeps into a pulp solution from the micro holes densely distributed on the puling rod to perform a fierce collision reaction and heat exchange with the pulp solution, so that the effects of deslagging, gas removal, refining of a crystal structure inside a material and heat exchange are achieved, the temperature inside the pulp is uniform, the inner crystal structure can be more uniform, and the metallographic structure of a product obtained after the prepared pulp is subjected to pressure casting can be more uniform; and meanwhile, the pulping time can be also remarkably shortened, and the semi-solid pulp pulping head is particularly suitable for semi-solid pulping of aluminum alloy, magnesium alloy and aluminum-magnesium alloy solutions.
Description
technical field [0001] The invention relates to a semi-solid pulp pulping head. Background technique [0002] Semi-solid metal forming technology is a metal forming technology between solid-state forming and liquid forming. It has the advantages of low flow stress in liquid forming, fast forming speed, and the ability to form parts with complex shapes. Extensive attention and research in other fields. In semi-solid metal forming technology, the most critical technology is how to prepare semi-solid slurry with excellent performance. [0003] At present, the commonly used method in the preparation process of the semi-solid slurry is to first use a mechanical stirring rod for stirring, and then cool the stirring rod or add solid materials of the same material. This kind of pulping method has the disadvantages of fast wear of the stirring rod, high cost, long stirring time, and long cooling time, which affect the production cycle and efficiency. The processed metal liquid has ...
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IPC IPC(8): B22D17/20
CPCB22D17/007B22D17/20
Inventor 王万里
Owner 苏州金澄精密铸造有限公司