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Simple preparation method of stripping pattern mold for casting of three-blade isometric screw inducer

A three-leaf spiral and inducer technology, which is applied to casting molding equipment, manufacturing tools, casting molds, etc., can solve the problems of difficult sand casting of spiral equidistant induction wheels, poor casting precision of induction wheels, and high difficulty in grinding, etc., to achieve improved Production efficiency and casting precision, solving the effect of poor casting precision and reducing production cost

Inactive Publication Date: 2017-05-31
中船重工西安东仪科工集团有限公司
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Problems solved by technology

[0003] The present invention mainly solves the problem of difficulty in sand casting of spiral equidistant induction wheels, and proposes a simple preparation method for a leaky pattern mold for casting of three-lobed spiral equidistant induction wheels, which saves the processing of spiral curved surfaces, and the process equipment can be used for sand casting The method of casting the induction wheel without parting surface solves the problems of poor casting precision, high grinding difficulty and low yield of the induction wheel, greatly improves the production efficiency and casting precision of the equidistant spiral type induction wheel, and reduces the production cost

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  • Simple preparation method of stripping pattern mold for casting of three-blade isometric screw inducer
  • Simple preparation method of stripping pattern mold for casting of three-blade isometric screw inducer
  • Simple preparation method of stripping pattern mold for casting of three-blade isometric screw inducer

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Embodiment Construction

[0028] Embodiments of the present invention are described in detail below, and the embodiments are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0029] In describing the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as limiting the invention.

[0030] In addition,...

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Abstract

The invention provides a simple preparation method of a stripping pattern mold for casting of a three-blade isometric screw inducer. By preparing an inducer mold and carrying out an appropriate sand excavation operation, a cover box mold and a stripping pattern blank are cast, and thus a stripping pattern plate is obtained. The cover box mold is combined with the stripping pattern plate, and a support frame, a connecting shaft, a guide shaft sleeve and a rotating rod are fabricated and constituted to obtain a whole set of mold. With this technological equipment, an inducer without parting surface may be cast by a sand mold casting method; thus, the problems of poor casting accuracy, high grinding difficulty and low yield of inducers are solved, and the production efficiency and casting precision of isometric screw inducers are significantly improved with reduced production costs.

Description

technical field [0001] The invention belongs to the technical field of casting technology, and specifically relates to a simple preparation method of a three-lobed spiral equidistant induction wheel casting leaky pattern mold, which is particularly suitable for sand casting process equipment for equidistant hydraulic induction wheel parts with spiral curved surfaces preparation. Background technique [0002] The inducer is a key part to improve the steam corrosion resistance of the centrifugal pump, and it is widely used in aviation, navigation and other industrial fields. However, due to the structural characteristics of the inducer, it is very difficult to design the casting process, neither radial (horizontal) splitting nor axial (vertical) splitting is possible. Some existing methods are either too poor in accuracy or too expensive. For example, casting sand molds together after casting in block molding is not only inefficient, but also difficult to polish the parting ...

Claims

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Application Information

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IPC IPC(8): B22C9/02B22C9/28
CPCB22C9/02B22C9/28
Inventor 田荣县范小林尚昌利李铁麟袁雪萍张春耕曹建刚叶琳琳文永新
Owner 中船重工西安东仪科工集团有限公司
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