Novel nitriding treatment mold sprue bush

Abstract

The utility model discloses a novel nitriding mould sprue bush which comprises a mould sprue bush body, a connecting part and a boss, the boss is arranged at the edge of an opening at the upper end of the connecting part, the boss and the connecting part are integrally formed, the thickness of the boss is 2mm, and the bottom of the mould sprue bush body is a plane. According to the novel nitriding treatment mold sprue bush, the connecting part is arranged at the edge of the upper end of the mold sprue bush body, and meanwhile, the boss is arranged at the opening of the upper end of the connecting part, so that the working efficiency of mold maintenance personnel for maintaining a mold can be effectively improved, the workload of mold repair welding and polishing is reduced, and the strength and the service life of the mold are prolonged through nitriding treatment; and on the other hand, the production problems of mold drawing, sprue breaking, sprue blocking filter screen arrangement deflection and the like caused by sprue corrosion are reduced, meanwhile, the takt time and the yield of casting production can be improved, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field related to a mold pouring sleeve, in particular to a novel nitriding treated mold pouring sleeve. Background Art

[0002] The mold sprue bushing refers to the flow channel component that allows the molten plastic material to be injected from the nozzle of the injection molding machine into the mold. It is used to connect the molding mold and the metal fittings of the injection molding machine. It is also called the nozzle, the filling nozzle and the gate, etc. The sprue bushing can facilitate the accurate positioning hole when the injection mold is installed, and can be well positioned in the plastic machine and match the nozzle hole of the plastic machine, and can bear the back pressure of the plastic raw material melt;

[0003] However, in the prior art, during the filling process of the metal mold low-pressure mold casting, as the aluminum liquid enters the mold from the riser, the bottom mold gate is repeatedly washed by the high-temperature aluminum liquid, resulting in corrosion pits on the surface of the mold body, and even cracks, which affects the quality of the casting and the strength and life of the mold.

[0004] Therefore, we proposed a new type of nitriding mold gate sleeve to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a novel nitriding treated mold gate sleeve to solve the problem raised in the above-mentioned background technology that during the metal mold low-pressure mold casting filling process, as the aluminum liquid enters the mold from the riser, the bottom mold gate is repeatedly flushed by the high-temperature aluminum liquid, resulting in corrosion pits and even cracks on the surface of the mold body, affecting the quality of the casting and the strength and life of the mold.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel nitriding mold sprue bushing, comprising a mold sprue bushing body and a connecting component;

[0007] Also includes:

[0008] The boss is arranged at the edge of the upper opening of the connecting component, and the boss and the connecting component are integrally formed, and the thickness of the boss is 2 mm, and the bottom of the mold gate sleeve body is a plane.

[0009] As a preferred technical solution of the utility model, a connecting component is embedded at the edge of the upper end of the mold gate sleeve body, and the mold gate sleeve body, the connecting component and the boss are all nitrided;

[0010] By adopting the above technical solution, a connecting component is embedded at the edge of the upper end of the mold gate sleeve body, and the mold gate sleeve body, the connecting component and the boss are all nitrided, so that the strength of the mold is increased through the nitriding treatment.

[0011] As a preferred technical solution of the utility model, the mold gate sleeve body is made of H13 material, the diameter of the mold gate sleeve body is 61mm, and the inner angle of the mold gate sleeve body is 3°;

[0012] At the same time, the hardness of the mold gate sleeve body is 46-52HB;

[0013] According to the above technical solution, the mold gate sleeve body is made of H13 material, the diameter of the mold gate sleeve body is 61 mm, and the inner angle of the mold gate sleeve body is 3°;

[0014] At the same time, the hardness of the mold gate sleeve body is 46-52HB, which can reduce production problems such as die pulling, gate breaking, gate blocking, and internal inclusions of the product caused by skewed placement of the filter screen due to gate corrosion.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the new nitriding mold gate sleeve has a connecting component at the edge of the upper end of the mold gate sleeve body, and a boss is provided at the opening of the upper end of the connecting component, which can effectively improve the work efficiency of mold repair personnel in maintaining the mold, reduce the workload of mold repair welding and grinding, and extend the strength and life of the mold through nitriding treatment. On the other hand, it reduces production problems such as die pulling, gate breaking, gate blocking, and internal inclusions of the product caused by the deviation of the filter screen placement due to gate corrosion, and at the same time can improve the beat and yield rate of casting production, and has high practicality;

[0016] 1. A connecting component and a boss are provided. The opening at the upper end of the mold gate sleeve body is provided with a connecting component, and the opening at the upper end of the connecting component is provided with a boss, which can effectively reduce the workload of mold repair welding and grinding, improve the strength of the mold, and improve the production cycle and yield rate of castings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] In the figure: 1. mold gate sleeve body; 2. connecting parts; 3. boss. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1The utility model provides a technical solution: a novel nitriding treated mold gate sleeve, comprising a mold gate sleeve body 1, a connecting component 2 and a boss 3.

[0021] When using the new nitriding mold gate sleeve, Figure 1 As shown, a connecting component 2 is inlaid at the opening of the upper end of the mold gate sleeve body 1, and a boss 3 is provided at the opening of the upper end of the connecting component 2, and the connecting component 2 and the boss 3 are both integrated molding designs, and the mold gate sleeve body 1 is made of H13 material, with a diameter of 61mm, an inner angle of 3°, and requires nitriding treatment during production, with a hardness of 46-52HB, which can effectively prevent high-frequency corrosion caused by high-temperature erosion of aluminum liquid. The bottom of the mold gate sleeve body 1 is flat, which is convenient for placing the filter screen, and can effectively avoid internal inclusions of the product caused by improper placement of the filter screen, and can effectively protect the mold from corrosion and cracking caused by erosion during casting;

[0022] This solution reduces the workload of mold repair welding and grinding, thereby extending the strength and life of the mold. On the other hand, it reduces production problems such as die pulling, broken gate, blocked gate, and skewed filter placement caused by gate corrosion, which leads to internal inclusions in the product. At the same time, it can improve the rhythm and yield rate of casting production, effectively prevent corrosion pits and even cracks on the mold surface, and effectively protect and extend the quality of castings and the strength and life of the mold, reduce the workload of mold repair welding and grinding, and extend the strength and life of the mold.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel nitriding mold sprue bushing, comprising a mold sprue bushing body (1) and a connecting component (2); It is characterized in that Also includes: A boss (3), wherein the boss (3) is arranged at the edge of the upper opening of the connecting component (2), the boss (3) and the connecting component (2) are integrally formed, the thickness of the boss (3) is 2 mm, and the bottom of the mold gate sleeve body (1) is a plane; The mold sprue bushing body (1) is made of H13 material, the diameter of the mold sprue bushing body (1) is 61 mm, and the inner angle of the mold sprue bushing body (1) is 3°; At the same time, the hardness of the mold gate sleeve body (1) is 46-52HB.

2. A novel nitriding mold gate sleeve according to claim 1, characterized in that: A connecting component (2) is inlaid at the edge of the upper end of the mold sprue sleeve body (1), and the mold sprue sleeve body (1), the connecting component (2) and the boss (3) are all nitrided.

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