Gating system for U-shaped screw pressurization diffuser casting

A technology of screw pressurization and pouring system, which is applied in the direction of molds, cores, mold components, etc., can solve the problems of high production cost and low product qualification rate, so as to avoid shrinkage cavity, weaken direct impact, prevent damage and overheating effect

Active Publication Date: 2015-03-04
BAODING FENGFAN PRECISION CASTING
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the qualified rate of castings is low and the production cost is high.

Method used

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  • Gating system for U-shaped screw pressurization diffuser casting
  • Gating system for U-shaped screw pressurization diffuser casting
  • Gating system for U-shaped screw pressurization diffuser casting

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Embodiment Construction

[0023] A gating system for U-shaped spiral booster diffuser castings, the gating system is arranged on the upper part of the diffuser wax 1, the structure of the gating system can be found in Figure 3-Figure 5 , which includes a side pouring riser 2, a direct pouring riser 3, a main runner 4, a sprue cup 5 and a flat die head 6. There are two side pouring risers 2, direct pouring risers 3 and flat die heads 6, and two main runners 4 are provided. The center lines of the two side pouring risers, the two direct pouring risers, the two main runners 4 and the two flat die heads 6 are located in the same vertical plane as the radial direction of the diffuser wax piece 1 .

[0024] The two side pouring risers are radially symmetrically arranged on the outer edge of the diffuser wax; the two direct pouring risers are radially symmetrically arranged on the large plane of the diffuser wax, and the center connection line of the two side pouring risers and the two The center line of th...

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Abstract

The invention discloses a gating system for a U-shaped screw pressurization diffuser casting. The gating system comprises an edge gating riser, a direct gating riser, a main runner and a pouring cup, wherein the bottoms of the edge gating riser and the direct gating riser are connected with a diffuser wax part; the top surfaces of the edge gating riser and the direct gating riser are flush to each other; the tops of the edge gating riser and the direct gating riser are respectively connected with the bottom surface of a rectangular main runner which is kept flat; and the top surface of the main runner is connected with the pouring cup. According to the gating system, the casting defects such as sinkholes, burnt-on sand and metal spikes are prevented; the product yield is increased; the production cost is reduced; the gating system is suitable for impellers of a plurality of complicated three-dimensional spiral surrounding wheels which are complicated in internal structure and shape, large in wall margin, high in demands on manufacturing accuracy, especially, liquid high-pressure conveying equipment spare parts with relatively large wall margins of closed water conservancy and chemical engineering.

Description

technical field [0001] The invention relates to a gating system for a casting, in particular to a gating system for a pressurized diffuser casting, which belongs to the technical field of casting. Background technique [0002] The U-shaped spiral booster diffuser is the core component of the U-shaped multi-stage spiral ultra-high pressure pump. The material is austenitic cast stainless steel. The U-shaped blades constitute the core technology of the product. The shape of the blades is multiple U-shaped with a thickness of 2mm. Toroidal spiral wrap settings such as figure 1 As shown in the figure, there are a plurality of U-shaped annular spiral surrounding blades with a wall thickness of 2mm in the middle, an outlet with a wall thickness of 60mm, and a U-shaped outer ring with a wall thickness of 19mm to form a U-shaped spiral annular airtight water channel. Due to the special structure and complex shape of the product, the production of diffuser castings is generally carri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/08
CPCB22C9/08
Inventor 范修谦李雪兴袁建强郝红枫颜召雷景海燕
Owner BAODING FENGFAN PRECISION CASTING
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