High-wear-resistance composite structure steel column for sand mold manufacturing

Abstract

The utility model relates to a high wear-resistant composite structure steel column for sand mould manufacturing, which comprises a steel column, the part of the steel column, which is not impacted by molding sand, is a composite structure body of a tungsten steel body and a steel column body, the shape of the tungsten steel body is matched with the shape of the steel column body, and the tungsten steel body and the steel column body jointly form the complete appearance of the steel column; after the steel column is assembled to the swage die, the tungsten steel body of the steel column is located on the sand facing side of the steel column and faces a sand inlet of the swage die. According to the high-wear-resistance composite structure steel column for sand mold manufacturing, due to the fact that the composite structure of the high-wear-resistance tungsten steel body and the steel column body is adopted, the wear resistance of the steel column is greatly improved when the steel column is prevented from being impacted by molding sand, and therefore wear is greatly relieved, and the service life of the steel column is effectively prolonged; and troubles and cost increase caused by frequent replacement are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to sand mould manufacturing equipment technical field especially a kind of high wear-resistant composite structure steel column for sand mould making. BACKGROUND

[0002] Sand mould is a kind of mould for sand mould casting, which is made of molding sand. To make sand mould, mold is used, and molding sand is blown into the fixed mold cavity to make molding sand accumulate and bond in the mold cavity, so that the sand mould is obtained, which is completely consistent with the shape of the mold cavity. The sand mould is then used for casting.

[0003] The formation of the mold cavity with a specific shape requires not only the mold itself but also some components with a specific shape to be fixed in the mold cavity to assist the molding sand to form, so that the sand mould has the required specific shape. These components with a specific shape, commonly known as steel columns (sticks) or similar objects, are used to make the mold cavity. When the molding sand is blown into the mold cavity at high speed from the sand inlet, the high-speed flowing molding sand will cause great abrasion to the sand-facing side of these components. Even if these components are generally ordinary steel products, they cannot withstand long-term high-speed sand abrasion, and will quickly wear out. When these components wear out, they need to be replaced in time to ensure the accuracy of the sand mould shape, which not only wastes time and labor, but also increases production costs. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide a high wear-resistant composite structure steel column for sand mould making to solve the problems raised in the background.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a high wear-resistant composite structure steel column for sand mould making, comprising a steel column, the part of the steel column that resists the impact of molding sand is a composite structure of a tungsten steel body and a steel column body, the shape of the tungsten steel body is adapted to the shape of the steel column body, and the two together constitute the complete shape of the steel column; after the steel column is assembled to the mold, the tungsten steel body is located on the sand-facing side of the steel column, facing the sand inlet of the mold.

[0006] Further, the tungsten steel body and the steel column body of the steel column are combined by welding or bonding.

[0007] The utility model has the advantages that: the high wear-resistant composite structure steel column for sand mould making has a tungsten steel body and a steel column body, which greatly improves the wear resistance of the steel column when it resists the impact of molding sand, thereby greatly reducing wear and tear and effectively prolonging the service life of the steel column, avoiding the trouble and cost increase caused by frequent replacement. BRIEF DESCRIPTION OF DRAWINGS

[0008] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0009] Figure 1 This is a schematic diagram of the structure of the steel column of the present invention when it is assembled into a mold for making a sand mold (partial cross-section, the arrow in the figure indicates the direction of sand feeding);

[0010] Figure 2 This is a structural diagram (stereoscopic diagram) of a method of combining the tungsten steel body and the steel column body of the utility model;

[0011] Figure 3 This is a structural schematic diagram (stereoscopic diagram) of another way of combining the tungsten steel body and the steel column body of the utility model;

[0012] Figure 4 It is a structural schematic diagram (stereoscopic diagram) of a steel column used for sand mold production in an existing structure.

[0013] In the figure: 1-1. Steel column body; 1-2. Tungsten steel body; 2. Mold; 2-1. Sand inlet. DETAILED DESCRIPTION

[0014] A high wear-resistant composite structural steel column used in sand mold making, such as Figure 1 As shown, it includes a steel column. The part of the steel column that withstands the impact of molding sand is a composite structure of a tungsten steel body 1-2 and a steel column body 1-1. The shape of the tungsten steel body 1-2 is adapted to the shape of the steel column body 1-1, and the two together constitute the complete shape of the steel column; after the steel column is assembled to the mold 2, its tungsten steel body 1-2 is located on the sand-facing side of the steel column, facing the sand inlet 2-1 of the mold 2.

[0015] The tungsten steel body 1-2 of the steel column is combined with the steel column body 1-1 by welding or bonding.

[0016] Figure 2 、 Figure 3 A combination (matching) method of the shape of the tungsten steel body 1-2 of the steel column and the steel column body 1-1 is respectively given.

[0017] It should be pointed out that the combination of the tungsten steel body 1-2 and the steel column body 1-1 has various ways of combination (matching) in terms of shape matching, which cannot be exhaustive, but after the two are combined, they must constitute the original complete shape of the steel column.

[0018] The steel column body is made of conventional ordinary steel, and tungsten steel has much higher wear resistance than conventional steel. However, due to the relatively high price of tungsten steel, the steel column is not entirely made of tungsten steel to control costs. Instead, tungsten steel is only introduced to the part of the steel column that withstands the impact of molding sand. This can not only control the improvement cost, but also maximize the use of tungsten steel to improve the wear resistance of the steel column and extend the service life of the steel column.

[0019] The above embodiments are only used for explaining the present application, and are not used for limiting the protection scope of the present application. Any non-essential change based on the essential scheme of the present application should fall into the protection scope of the present application.

Claims

1. A high abrasion resistant composite structural steel column for use in sand moulding, comprising a steel column, characterised in that: The part of the steel column that is forbidden to be impacted by the sand is a composite structure of the tungsten steel body (1-2) and the steel column body (1-1), the shape of the tungsten steel body (1-2) is matched with the shape of the steel column body (1-1), and the two together constitute the complete shape of the steel column; after the steel column is assembled to the mold (2), the tungsten steel body (1-2) of the steel column is located on the sand-encountering side of the steel column and faces the sand inlet (2-1) of the mold (2).

2. A high abrasion resistant composite structural steel column for use in sand moulding as claimed in claim 1, wherein: The tungsten steel body (1-2) of the steel column and the steel column body (1-1) are combined by welding or bonding.

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