CN210877423U

CN210877423U - Casting system of 5A cast steel dish board

Info

Publication number: CN210877423U
Application number: CN201921064552.3U
Authority: CN
Inventors: 路长春; 苏国宝; 蔡天志
Original assignee: Fujian Datong Huhui Precision Casting Co ltd
Current assignee: Fujian Datong Huhui Precision Casting Co ltd
Priority date: 2019-04-20
Filing date: 2019-07-09
Publication date: 2020-06-30
Anticipated expiration: 2029-07-09

Abstract

The utility model belongs to the technical field of the dish board production technique and specifically relates to a casting system of 5A cast steel dish board, including lower mould main part and last mould main part, it matches each other with the size of lower mould main part to go up the mould main part, it is provided with multiunit positioning mechanism to go up between mould main part and the lower mould main part, the upper end of strengthening rib is fixed with the vent seat, the ventilative stick that runs through the vent seat is all installed to the upper end of vent seat, the inboard upper end of the upper end of ventilative stick and last die cavity mutually contactless, the resin psammitolite that runs through last mould main part is all installed to the both sides lower extreme of going up the mould main part, a plurality of interior waters that run through the lower mould main part are installed to die cavity one side down, the other. The utility model relates to a portably, be applicable to all A995-5A material butterfly plates and the similar foundry goods of structure, obtained good effect in actual production, surface quality is good behind the foundry goods shaping, and as-cast structure is outstanding, and physical properties accords with the foundry goods requirement.

Description

Casting system of 5A cast steel dish board

Technical Field

The utility model relates to a dish board production technical field especially relates to a casting system of 5A cast steel dish board.

Background

Butterfly valves are used as a large class of industrial valves, are mainly used for pipelines for conveying various corrosive and non-corrosive fluid media in engineering systems such as natural gas, liquefied petroleum gas, chemical smelting, power generation, water supply and drainage of buildings and the like, and are used for regulating and cutting off the flow of the media.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a casting system for a 5A cast steel disc plate.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a casting system of an A-type cast steel disc plate is designed, and comprises a lower die main body and an upper die main body, wherein the sizes of the upper die main body and the lower die main body are matched with each other, a plurality of groups of positioning mechanisms are arranged between the upper die main body and the lower die main body and distributed in an annular manner, a lower die cavity is arranged in the middle of the upper end of the lower die main body, an upper die cavity is arranged in the middle of the lower end of the upper die main body, the sizes of the lower die cavity and the upper die cavity are matched with each other, reinforcing ribs are horizontally welded at the lower end of the inner side of the upper die cavity, vent hole seats are fixed at the upper ends of the reinforcing ribs and are in clearance fit with the upper die cavity, vent rods penetrating through the vent hole seats are all installed at the upper ends of the vent rods and are not in contact with the upper end of the, the other end of resin psammitolite extends to the inboard upper end of supreme die cavity, a plurality of ingates that run through the lower mould main part are installed to die cavity one side down, the other end horizontally connected with the cross gate of ingate, the cross gate communicates with die cavity down each other through the ingate, the upper end mid-mounting of cross gate has the riser seat, the interior mid-mounting of surveying of riser seat has the rising head that runs through the riser seat, and the rising head communicates with the ingate each other.

Preferably, the positioning mechanism comprises a positioning hole formed in the upper end of the lower die main body and a positioning column fixedly mounted at the lower end of the upper die main body, the positioning column extends to the inner side of the positioning hole, and the positioning hole is in clearance fit with the positioning column.

Preferably, a plurality of cylinders are uniformly welded at the upper end of the upper die main body, and iron rings are welded at the upper ends of the cylinders.

Preferably, a plurality of cold iron blocks are uniformly welded at the lower end inside the upper cavity, and the cold iron blocks are positioned at the lower end of the vent hole seat.

Preferably, the inner surface of the lower cavity is plated with a wear-resistant layer, and the wear-resistant layer is a zinc-nickel alloy layer.

Preferably, the lower end of the lower die main body is compositely bonded with a pressure reducing pad.

The utility model provides a pair of casting system of 5A cast steel dish board, beneficial effect lies in: the casting system of the 5A cast steel disc plate is simple and convenient in design, is suitable for all A995-5A material disc plates and castings with similar structures, achieves good effects in actual production, has good surface quality after the castings are molded, has excellent as-cast structure, and meets the requirements of the castings on physical properties.

Drawings

Fig. 1 is a structural plan view of a casting system for a 5A cast steel disc plate according to the present invention.

Fig. 2 is a structural front view of a casting system for a 5A cast steel disc plate according to the present invention.

Fig. 3 is the utility model provides a structure of 5A cast steel dish plate's casting system's rising head looks sideways at the enlargedly.

Fig. 4 is an enlarged view of the structure of the riser of the casting system for the 5A cast steel dish plate according to the present invention.

In the figure: the casting mold comprises a lower mold main body 1, a ventilating rod 2, a cold iron block 3, a resin sand core 4, a riser 5, a cross gate 6, an ingate 7, a ventilating hole seat 8, a positioning hole 9, a reinforcing rib 10, a positioning column 11, an upper mold main body 12, an upper mold cavity 13, a lower mold cavity 14, a column body 15, an iron ring 16, a riser seat 17, a wear-resistant layer 18 and a pressure reducing pad 19.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, a casting system of a 5A cast steel dish plate, including lower mould main part 1 and last mould main part 12, go up the size of mould main part 12 and lower mould main part 1 and match each other, it is provided with multiunit positioning mechanism to go up between mould main part 12 and the lower mould main part 1, and multiunit positioning mechanism layer annular distribution, positioning mechanism is including seting up locating hole 9 and the reference column 11 of fixed mounting at last mould main part 12 lower extreme in the lower mould main part 1, reference column 11 extends to the inboard of locating hole 9, and locating hole 9 and reference column 11 clearance fit, through mutually supporting of reference column 11 and locating hole 9, can make and go up mould main part 12 and lower mould main part 1 more quick and stable when the installation, can effectual holistic stability of improvement.

The upper end of the upper die main body 12 is uniformly welded with the plurality of columns 15, the upper ends of the columns 15 are welded with the iron rings 16, and the iron rings 16 can be used for facilitating an operator to lift the upper die main body 12 by using lifting equipment, so that the demolding effect can be achieved.

Go up the inside lower extreme of die cavity 13 and evenly weld and have a plurality of chills piece 3, and chills piece 3 is located the lower extreme of venthole seat 8, and chills piece 3 plays the effect of support to strengthening rib 10 to can make strengthening rib 10 and venthole seat 8 remain stable state.

The lower end of the lower die body 1 is compositely bonded with a pressure reducing pad 19, and the pressure reducing pad 19 can enable the device to play a role in skid resistance and shock absorption during casting.

The inner surface of the lower cavity 14 is plated with a wear-resistant layer 18, and the wear-resistant layer 18 is specifically a zinc-nickel alloy layer, and the zinc-nickel alloy has the effects of high temperature resistance, wear resistance and corrosion resistance, and can facilitate the demolding of castings, thereby effectively prolonging the service life of the device.

The middle part of the upper end of the lower die main body 1 is provided with a lower die cavity 14, the middle part of the lower end of the upper die main body 12 is provided with an upper die cavity 13, the sizes of the lower die cavity 14 and the upper die cavity 13 are matched with each other, the lower end of the inner side of the upper die cavity 13 is horizontally welded with a reinforcing rib 10, the upper end of the reinforcing rib 10 is fixed with a vent hole seat 8, the vent hole seat 8 is in clearance fit with the upper die cavity 13, the upper end of the vent hole seat 8 is provided with a vent rod 2 penetrating through the vent hole seat 8, the upper end of the vent rod 2 is not contacted with the upper end of the inner side of the upper die cavity 13, the lower ends of the two sides of the upper die main body 12 are provided with resin sand cores 4 penetrating through the upper die main body 12, the other ends of the resin sand cores 4 extend to the upper end of the inner side of the upper die cavity 13, the center, the accumulation of gas in the resin sand core 4 is reduced, casting air holes are reduced, and in view of the good collapsibility of the phenolic resin sand at high temperature, the molding sand in the shaft hole of the butterfly plate does not need to be cleaned any more during sand cleaning, so that stress cracks caused by sand cleaning vibration are avoided.

A plurality of ingates 7 penetrating through a lower die body 1 are installed on one side of a lower die cavity 14, the other end of each ingate 7 is horizontally connected with a cross gate 6, each cross gate 6 is communicated with the lower die cavity 14 through the corresponding ingate 7, the sectional area of each cross gate 6 is equal to that of the corresponding ingate 7, so that molten steel flows, the impact force of the molten steel on molding sand of the gate is rapidly reduced, the tendency of air entrainment is reduced, a water inlet of the corresponding ingate is placed in the lower die body 1, the width of the corresponding ingate is smaller than 2/3 of the thickness of a casting piece on the premise of not influencing the pouring speed, the length of the corresponding water inlet is designed to be as small as possible, the direction of the corresponding.

The middle part of the upper end of the cross pouring gate 6 is provided with a riser seat 17, the middle part of the inner side of the riser seat 17 is provided with a riser 5 penetrating through the riser seat 17, the riser 5 is communicated with the inner pouring gate 7, the arrangement of the riser 5 increases the exhaust performance of the whole sand mould, the riser 5 is arranged on a processing surface to reduce the post-processing procedure of a non-processing surface, and the riser seat 17 is designed to avoid the phenomenon that a casting is cut to generate cracks and extend to the inner part.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The casting system of the 5A cast steel disc plate comprises a lower die main body (1) and an upper die main body (12), wherein the upper die main body (12) is matched with the lower die main body (1) in size, the casting system is characterized in that a plurality of groups of positioning mechanisms are arranged between the upper die main body (12) and the lower die main body (1), the groups of positioning mechanisms are distributed in an annular mode, a lower cavity (14) is formed in the middle of the upper end of the lower die main body (1), an upper cavity (13) is formed in the middle of the lower end of the upper die main body (12), the lower cavity (14) is matched with the upper cavity (13) in size, a reinforcing rib (10) is horizontally welded at the lower end of the inner side of the upper cavity (13), a vent hole seat (8) is fixed at the upper end of the reinforcing rib (10), the vent hole seat (8) is in clearance fit with the upper cavity (13), a vent rod (2) penetrating through the vent hole seat (, the upper end of ventilative stick (2) and the inboard upper end of last die cavity (13) are each other not contact, go up the both sides lower extreme of die body (12) and all install resin psammitolite (4) that run through die body (12), the other end of resin psammitolite (4) extends to the inboard upper end of die cavity (13), a plurality of ingates (7) that run through lower die body (1) are installed to die cavity (14) one side down, the other end horizontally connected with cross gate (6) of ingate (7), cross gate (6) are through ingate (7) and die cavity (14) intercommunication down, the upper end mid-mounting of cross gate (6) has riser seat (17), the interior survey mid-mounting of riser seat (17) has riser (5) that run through riser seat (17), and riser (5) and ingate (7) communicate each other.

2. A casting system for a 5A cast steel disc as claimed in claim 1, wherein the positioning mechanism comprises a positioning hole (9) formed at an upper end of the lower die main body (1) and a positioning post (11) fixedly mounted at a lower end of the upper die main body (12), the positioning post (11) extends to an inner side of the positioning hole (9), and the positioning hole (9) is in clearance fit with the positioning post (11).

3. A casting system for 5A cast steel discs as claimed in claim 1 wherein the upper end of the upper die body (12) has a plurality of columns (15) welded uniformly thereto, and the upper ends of the columns (15) have iron rings (16) welded thereto.

4. A casting system for 5A cast steel discs as claimed in claim 1 wherein a plurality of cold iron blocks (3) are welded uniformly to the lower end inside the upper cavity (13) and the cold iron blocks (3) are located at the lower end of the vent seat (8).

5. A casting system for 5A cast steel discs as claimed in claim 1, characterized in that the inner surfaces of the lower cavity (14) are coated with a wear resistant layer (18), and that the wear resistant layer (18) is in particular a zinc-nickel alloy layer.

6. A casting system for 5A cast steel disc as claimed in claim 1, wherein the lower end of the lower die body (1) is bonded with a pressure reducing pad (19).