CN2107332U

CN2107332U - Precision steel casting mold

Info

Publication number: CN2107332U
Application number: CN 91231473
Authority: CN
Inventors: 楚杏芬
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-11-20
Filing date: 1991-11-20
Publication date: 1992-06-17

Abstract

The utility model relates to a precision steel casting mold, which is characterized in that the mold is parted at the centerline of a pouring head and a feeder head, the parted mold and an upper mold plate positioned by a lower mold with a mold cavity are respectively fixed on a mold core by connecting pieces, and ceramic of which the thickness is more than 3 mm, or metal tungsten or metal molybdenum of which the thickness is more than 0.1 mm are fixed on the surfaces of the pouring head, the feeder head and the mold cavity. A water jacket composed of a ring groove and a ring plug is arranged on a mold body, and water faucets are arranged on both ends of the water jacket. Compared with the prior art, the fluid foundry of steel can be realized if the temperature is not more than 2000 DEG C, the utility model can effectively and continuously work for more than 10000 times in the state of high pressure, and the product error is less than 0.1 mm.

Description

Precision steel casting mold

The utility model relates to a kind of accurate steel mould that is used to cast.

Traditional sand casting because its product trueness error is big and efficient is low, can not satisfy the requirement of development of machinery industry, and present hot investment casting mould because its heatproof is low, can only be satisfied the casting of non-ferrous metal pieces.

The purpose of this utility model is to provide a kind of fusing point directly to inject in metal flow physical efficiency below 2000 ℃, at the high pressure conditions compacted under, and continuous operation more than ten thousand times expeditiously, the accurate steel mould that the product precision is high.

The utility model is achieved in that and will punishes mould at cast gate and rising head center line, and with the patrix utmost point of the counterdie location that is shaped on die cavity, be fixed on the core rod with connector respectively, be fixed with the tungsten of thickness more than 0.1 millimeter at cast gate, rising head and mold cavity surface, because tungsten can bear 2500 ℃ of high temperature, so can realize the purpose of this utility model.

The utility model also can be realized like this: by above scheme, the metal molybdenum that also can fix thickness more than 0.1 millimeter at cast gate, rising head and mold cavity surface, the same with above reason, it can realize the purpose of this utility model.

The utility model can also be realized like this: by above scheme, can also fix the pottery of thickness more than 3 millimeters at cast gate, rising head and mold cavity surface.The same with above reason, it can realize the purpose of this utility model.

The utility model is preferably realized like this: on the basis of above scheme, with counterdie and (or) be shaped on annular groove on the die body of core rod and ring is stifled forms water jacket, and water nozzle is housed at the water jacket two ends.

Concrete structure of the present utility model is provided by following examples and accompanying drawing thereof.

Fig. 1 is the accurate steel mould schematic diagram that is shaped on water jacket in the utility model on counterdie.Fig. 2 is the part section vertical view of Fig. 1.

Describe in detail according to the concrete device details that the utility model proposes below in conjunction with accompanying drawing.

With reference to accompanying drawing, accurate steel mould is to punish mould at cast gate 3 and rising head 6 center lines, and with the cope match-plate pattern 1 of counterdie 3 location that is shaped on die cavity 8, be fixed on the core rod 5 with the such connector 4 of screw respectively, on cast gate 3, rising head 6 and die cavity 8 surfaces, be coated with the tungsten 2 of 0.3 millimeters thick with the method for vacuum plating, annular groove that counterdie 7 is shaped on and ring stifled 11 are formed water jackets 10, and water nozzle 9 is equipped with at water jacket 10 two ends.Since the cast gate 3, rising head 6 and die cavity 8 surfaces that contacts with metal liquid be fixed with can anti-2500 ℃ of high temperature tungsten, from an end water nozzle 9, import in addition, from other end water nozzle 9, export cooling water, in water jacket 10, play cooling effect for mould.Thereby not only make cast iron and malleable cast iron, very cause cast steel can both realize high efficiency hot investment casting.

Use precision steel casting mold described in the utility model, compare with existing similar technology, have and can satisfy below 2000 ℃, continuous operation is more than ten thousand times expeditiously under high pressure conditions, and the product size error is in 0.1 millimeter, and surface smoothness reaches

More than 50.

Claims

1, a kind of accurate steel mould, it is characterized in that will be at cast gate 3 and rising head 6 center lines punishment mould, and with the cope match-plate pattern 1 of counterdie 3 location that is shaped on die cavity 8, only be fixed on core rod 5 with connector 4 respectively, be fixed with the tungsten 2 of thickness more than 0.1 millimeter on cast gate 3, rising head 6 and die cavity 8 surfaces.

2, accurate steel mould as claimed in claim 1, it is characterized in that also can being fixed with on cast gate 3, rising head 6 and die cavity 8 surfaces the metal molybdenum 2 of thickness more than 0.1 millimeter '.

3, accurate steel mould as claimed in claim 1 is characterized in that being fixed with on cast gate 3, rising head 6 and die cavity 8 surfaces the pottery 2 of thickness more than 3 millimeters ".

4, as claim 1,2 or 3 described accurate steel moulds, it is characterized in that the annular groove and the ring that are shaped on the die body block up 11 composition water jackets 10, water nozzle 9 is equipped with at the two ends of water jacket 10.