Casting process design of oil filter seat hydraulic casting

Abstract

The invention relates to a casting process design of an oil filter seat hydraulic casting, which comprises a pouring system, a sand box and a sand core, the sand core is arranged in the sand box and is in positioning connection with the sand box, and pouring is carried out through the pouring system; the sand core is provided with a special-shaped runner; the method comprises the following steps: (1) manufacturing a core: adopting a combined sand core design, taking a special-shaped runner as an independent component, carrying out sand shooting molding through a core shooting machine, when each component is assembled, inserting one end of the special-shaped runner into a hole formed in other components, and rotating the special-shaped runner to enable the other end of the special-shaped runner to be clamped into a clamping groove formed in the other components; (2) pouring, wherein a pouring system adopts the design of an exothermic riser sleeve and a feeding riser;

Description

Technical Field

[0001] The invention discloses a casting technology, and in particular relates to a casting process design of an oil filter seat hydraulic casting. Background Art

[0002] Due to the structural limitations of the oil filter seat, the sand core has a special-shaped flow channel and cannot be made into a whole. It must be presented in a combined form. When the sand core is divided, the special-shaped flow channel often needs to be separated. Although the core can be made in this way, the accuracy cannot be guaranteed, especially the accuracy of the special-shaped flow channel. For the casting of the oil filter seat, the cast molded product still inevitably has shrinkage defects. Figure 1-6 shown. Summary of the invention

[0003] In order to solve the above problems, the present invention proposes a casting process design for an oil filter seat hydraulic casting, and the casting product has high precision and can avoid shrinkage defects.

[0004] The technical solution of the present invention: A casting process design for an oil filter seat hydraulic casting includes a pouring system, a sand box, and a sand core. The sand core is placed in the sand box, positioned and connected thereto, and poured through the pouring system. 1) Core making: adopt the combined sand core design, with the special-shaped flow channel as an independent component, and form it by sand shooting with a core shooting machine. When the components are assembled, one end (conical head) of the special-shaped flow channel is inserted into the hole (conical hole) set on the other component, and the special-shaped flow channel is rotated so that the other end is stuck in the slot set on the other component (assisted by adhesive connection); 2) Pouring: The pouring system adopts a heat-generating riser sleeve plus a shrinkage-compensating riser design.

[0005] During pouring, qualified molten iron is injected from the pouring cup on the mold, directly reaches the molten iron purification filter through the straight runner, and then enters the riser nest through the flat cross runner with slag blocking function, and enters the casting cavity through the inner gate on the riser to fill and solidify the casting.

[0006] The invention has the advantages of reasonable design and ingenious conception. 1) The design inserts and rotates to realize the assembly of two components. Based on this design concept, when the sand core is parted, the special-shaped flow channel can be treated as an independent component (parting with the shape). The assembled sand core has high precision, which effectively guarantees the precision of the products cast from this sand core. 2) Adding a heating riser sleeve to the traditional cloth feeding riser can extend the time of the molten iron's liquid feeding capacity, reduce the amount of molten iron used, avoid the occurrence of product shrinkage defects, reduce the amount of molten iron used, and improve the utilization rate of molten iron; and with this structural design, the volume of the riser can be designed to be smaller, which is 2 / 3 of the ordinary riser. In this way, using the same size of template, more groups (two in each group) can be arranged, which improves the utilization rate of the template and the molding production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 This is the front view of the oil filter seat.

[0008] Figure 2 This is the rear view of the oil filter seat.

[0009] Figure 3 It is the side view of the oil filter seat.

[0010] Figure 4 This is a top view of the oil filter seat.

[0011] Figure 5 yes Figure 2 Schematic diagram of the cross section along the AA direction.

[0012] Figure 6 yes Figure 4 Schematic diagram of the cross section in the CC direction. DETAILED DESCRIPTION

[0013] A casting process design for an oil filter seat hydraulic casting includes a pouring system, a sand box, and a sand core. The sand core is placed in the sand box, positioned and connected thereto, and poured through the pouring system. 1) Core making: adopt the combined sand core design, with the special-shaped flow channel as an independent component, and form it by sand shooting with a core shooting machine. When the components are assembled, one end (conical head) of the special-shaped flow channel is inserted into the hole (conical hole) set on the other component, and the special-shaped flow channel is rotated so that the other end is stuck in the slot set on the other component (assisted by adhesive connection); 2) Pouring: The pouring system adopts a heat-generating riser sleeve plus a shrinkage-compensating riser design.

[0014] During pouring, qualified molten iron is injected from the pouring cup on the mold, directly reaches the molten iron purification filter through the straight runner, and then enters the riser nest through the flat cross runner with slag blocking function, and enters the casting cavity through the inner gate on the riser to fill and solidify the casting.

[0015] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A casting process design for an oil filter seat hydraulic casting, comprising a pouring system, a sand box, and a sand core. The sand core is placed in the sand box, positioned and connected thereto, and poured through the pouring system; the sand core has a special-shaped flow channel; characterized in that: 1) Core making: adopt the combined sand core design, with the special-shaped flow channel as an independent component, and form it by sand shooting with a core shooting machine. When the components are assembled, one end of the special-shaped flow channel is inserted into the hole set on other components, and the special-shaped flow channel is rotated so that the other end is inserted into the slot set on other components; 2) Pouring: The pouring system adopts a heat-generating riser sleeve plus a shrinkage-compensating riser design.

2. The casting process design of the oil filter seat hydraulic casting according to claim 1 is characterized in that: During pouring, qualified molten iron is injected from the pouring cup on the mold, directly reaches the molten iron purification filter through the straight runner, and then enters the riser nest through the flat cross runner with slag blocking function, and enters the casting cavity through the inner gate on the riser to fill and solidify the casting.

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