Wear-resistant white cast iron rice sieve batten
A layered and cast iron technology, applied in the field of cast iron products, can solve the problems of wear damage, broken rice, low rice milling output, etc., and achieve the effects of increased service life, firm joints, and improved production efficiency
Inactive Publication Date: 2013-06-12
JIANGSU HONGDE SPECIAL PARTS CO LTD
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Problems solved by technology
At present, the method of producing rice sieve layering strips, some are produced by mechanical processing, drilling holes and inserting bolts on strip iron plates, the production process content is various and the quality is poor, resulting in low rice milling output; Grinding damage, one of the main causes of broken rice during rice milling
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Embodiment Construction
[0014] Accompanying drawing is the structural diagram of the method for casting anti-wear white cast iron rice sieve sheet layering of wind jet rice mill NF-14 type. exist figure 1 , 2 Among them, use clay sand wet mold single sand 16 and one type 4 casting method of detachable sand box 14 to pound sand moulding, first put on the modeling plate 8 and be provided with first bolt jack 5 and second bolt jack 10 long 200 mm wide 20 mm thick 15 mm rice sieve bead 4, ingate 15, the pattern of runner 3, then put the lower sand box of detachable sand box 14 on the modeling plate 8, wet with clay sand Sand mold single sand 16 pounding sand to make the lower wet sand mold 7, turn over from the modeling plate 8 to make the lower wet sand mold 7, and use the 3 positioning pins 13 outside the box to position the upper sand box of the detachable sand box 14 and sprinkle it. For molding sand, place the sprue 2 pattern on the runner 3 pattern, and then use the clay sand wet sand mold single...
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Abstract
The invention provides a method for wear-resistant white cast iron rice sieve batten. The batten is characterized in that a detachable box and spring sands of green clay sand mold unit sands are used for shaping; a sprue is arranged on an upper green sand mold; a runner, an ingate and rice sieve battens are arranged on a lower green sand mold; the lower end of a bolt A is inserted into a bolt A insertion hole; the lower end of a bolt B is inserted into a bolt B insertion hole; the upper green sand mold and the lower green sand mold are positioned and jointly molded by positioning pins outside the box; an electric furnace is used for smelting furnace burdens; and after entering the sprue, the runner and the ingate, the molten iron of the wear-resistant white cast iron rice sieve batten fills the cavities of the rice sieve battens and casts in the upper ends of the bolts A and B. The wear-resistant white cast iron rice sieve batten casting in the bolts has the following beneficial effects: the bolts are firmly bonded with the rice sieves; and the service lives of the rice sieve battens are prolonged and the milling quality is improved by applying the wear resistance of the wear-resistant whitecast iron.
Description
technical field [0001] The invention relates to a method for casting cast iron products, in particular to a method for casting anti-wear white cast iron rice sieve layers. Background technique [0002] The rice sieve layer is the most frequently replaced part in the rice mill due to wear and tear. At present, the method of producing rice sieve layering strips, some are produced by mechanical processing, drilling holes and inserting bolts on strip iron plates, the production process content is various and the quality is poor, resulting in low rice milling output; Grinding damage, one of the main causes of broken rice during rice milling. Contents of the invention [0003] The invention provides a method for casting anti-abrasion white cast iron rice sieve beading, in which cast-inlaid bolts and rice sieve beading are firmly bonded, the white cast iron is wear-resistant and durable, the service life of rice sieve beading is improved, and the quality of rice milling is impro...
Claims
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IPC IPC(8): B22D19/04C22C37/10C22C37/00B02B3/00
Inventor 王恩凤刘之增
Owner JIANGSU HONGDE SPECIAL PARTS CO LTD