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Drop nozzle of meter regulator for processing metal grains
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A metal particle and quantizer technology, applied in the field of metal particle processing, can solve the problems of poor equipment stability and complicated operation, and achieve the effects of stable size, uniform particles and long service life
Inactive Publication Date: 2008-12-10
XI AN JIAOTONG UNIV
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Problems solved by technology
The titrator adopts electromagnetic valve control to realize fast and slow dripping, the operation is complicated, and the stability of the equipment is poor
Method used
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Embodiment 1
[0023] See attached Figure 1~3 , the present invention consists of a drip nozzle body 1 and a plug 2, the length h1 of the drip nozzle body is 32mm, a trapezoidal hole 3 is opened in the drip nozzle body (the big end is φ1, the small end is φ2), and the length h2 of the trapezoidal hole 3 is 25mm , in the trapezoidal hole 3, the size of φ1 is φ8mm, the size of φ2 is φ6mm, a through hole 4 (φ3) is opened below the trapezoidal hole 3, the size of φ3 is φ3mm, and a trapezoidal cone is set in the trapezoidal hole 3 The same trapezoidal plug 2 of hole 3 taper, the length h3 of trapezoidal plug 2 is 12mm, has opened a straight hole 5 (φ 4) in trapezoidal plug 2, and the size of φ 4 is φ 2mm.
[0024] The drip nozzle body and the stopper of the present embodiment adopt ceramic materials, and its raw material composition is as follows: SiO 2 , 72.14%, Al 2 o 3 , 24.93%, Fe 2 o 3 , 1.33%, ZrO 2 , 0.85%, MgO, 0.47%, Ce 2 o 3 , 0.28%, the sintering temperature is 1290°C, the har...
Embodiment 2
[0027] See attached Figure 1~3, the present invention is made up of drip nozzle body 1 and plug 2, and drip nozzle body length h1 is 38mm, and a trapezoidal tapered hole 3 is opened in drip nozzle body (its big end is φ1, and small end is φ2), and the length of trapezoidal tapered hole 3 is h2 30mm, in the trapezoidal cone hole 3, the size of φ1 is φ10mm, the size of φ2 is φ8mm, and a through hole 4 (φ3) is opened under the trapezoidal hole 3, and the size of φ3 is φ3.5mm. A trapezoidal plug 2 identical to the trapezoidal taper hole 3 taper is set in 3, the length h3 of trapezoidal plug 2 is 14mm, has opened a straight hole 5 in trapezoidal plug 2, and the size of its inner hole φ 4 is φ 2.6mm.
[0028] The drip nozzle body and the plug of this embodiment are made of ceramic materials, and its composition is as follows: SiO 2 , 69.10%, Al 2 o 3 , 28.52%, Fe 2 o 3 , 1.02%, ZrO 2 , 0.38%, MgO, 0.67%, Ce 2 o 3 , 0.31%, the sintering temperature is 1315°C, the hardness of...
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Abstract
The invention discloses a doser drip nozzle for processingmetal particles. The doser drip nozzle is composed of a drip nozzle body and a plug matched with the drip nozzle body; the shape of the drip nozzle body is a cylinder, and the outer There are threads on the diameter, and there is a trapezoidal hole in the center for placing the plug. There is a through hole at the small end of the trapezoidal hole. The trapezoidal hole and the through hole run through the drip nozzle body; The through hole in the body is a straight hole, and the straight hole and the through hole are connected; the material of the drip nozzle body and the plug is ceramic, and the ceramic contains the following raw materials in weight percentage: SiO2, 68% to 78%, Al2O3, 20% to 30% , the balance is not 0 Fe2O3, ZrO2, MgO and Ce2O3. The invention has high strength, good toughness, abrasion resistance and corrosion resistance. It has a long service life and does not break when replaced, which can improve the production line operation rate of processingmetal particles and reduce the processing cost of metal particles. After the molten metal flows through the drip nozzle of the metering device, it can realize smooth and intermittent flow, and the processed metal particles are uniform.
Description
technical field [0001] The invention belongs to the technical field of metal particle processing, and relates to a doser drip nozzle for processing metal particles. Background technique [0002] The development of modern industry has higher and higher requirements on the performance of steel plates, not only good mechanical properties, but also good corrosion resistance. If only considering the material itself, any material with good corrosion resistance and mechanical properties will be expensive and difficult to be widely used. The biggest advantage of coated steel sheets is that they have good corrosion resistance, which is generally several to dozens of times higher than ordinary cold-rolled carbon steel sheets in atmospheric corrosion resistance. In addition, they also have good formability and paintability. Therefore, all countries in the world are vigorously developing such products, and some even account for 50% of cold-rolled plate production and 10% of steel produ...
Claims
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Application Information
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