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Gating system for U-shaped screw booster diffuser castings

A technology of screw pressurization and pouring system, applied in the direction of mold, core, mold composition, etc., can solve the problems of low product qualification rate and high production cost, avoid shrinkage cavity, prevent damage and overheating, and reduce direct impact Effect

Active Publication Date: 2017-01-04
BAODING FENGFAN PRECISION CASTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 booster diffuser castings
  • Gating system for U-shaped screw booster diffuser castings
  • Gating system for U-shaped screw booster diffuser castings

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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 gating system for U-shaped spiral booster diffuser castings, it includes side pouring riser, straight pouring riser, main runner and sprue cup, the bottom of side pouring riser and straight pouring riser are all mixed with diffuser wax The top surfaces of the side pouring riser and the direct pouring riser are flush, and the tops of the side pouring riser and the direct pouring riser are respectively connected with the bottom surface of the rectangular parallelepiped main sprue, and the main sprue The top surface is attached to the sprue cup. The invention prevents casting defects such as shrinkage cavities, sand sticking, and metal thorns in castings, improves the qualified rate of products, and reduces production costs. The impeller with a spiral surrounding the wheel, especially the closed water conservancy, chemical and other liquid high-pressure conveying equipment parts with large wall thickness difference.

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