CN205200454U

CN205200454U - A runner basin for wind -powered electricity generation nodular cast iron spare

Info

Publication number: CN205200454U
Application number: CN201520905242.5U
Authority: CN
Inventors: 陈玉芳; 吴跃彬; 王卫国; 王美喜; 张彪
Original assignee: Jiangsu Jixin Wind Energy Technology Co Ltd
Current assignee: Jiangsu Jixin Wind Energy Technology Co Ltd
Priority date: 2015-11-13
Filing date: 2015-11-13
Publication date: 2016-05-04
Anticipated expiration: 2025-11-13

Abstract

The utility model relates to a runner basin for wind -powered electricity generation nodular cast iron spare, include: the steel frame, locate the moulding sand of inner chamber and the runner that links to each other with the casting mould sprue, wherein, the top of runner sets up the tang, and the top of tang sets up the iron sheet. The utility model discloses the direct entering of the inabundant inclusion that floats is watered and the casting mould before can avoiding the runner basin to be full of indisputable liquid, reduces the production of pressing from both sides the sediment defect.

Description

For the pouring basin of wind-power spherulitic graphite cast iron part

Technical field

The utility model relates to the device used in casting process, the pouring basin that the automatic unlatching that specifically a kind of middle-size and small-size wind-power spherulitic graphite cast iron part being less than 2T uses is poured into a mould.

Background technology

Pouring basin be positioned in casting process on sprue store molten metal, device that guide wire liquid enters casting mold.Ductile iron liquid can produce field trash in melting, nodularization and inoculation process, pouring basin is the initial position of whole casting process, whether its quality, these field trashes can be allowed fully to float avoid entering casting mold, be first key link determining casting quality.At present there is ripe bag of drawing the cork for large-scale wind electricity nodular iron casting, can be full of at molten iron, field trash unstops after fully floating again and pour into a mould, just avoid these field trashes to enter in casting mold; But for middle-size and small-size wind-power spherulitic graphite cast iron part, due to cost restriction, the function that its pouring basin does not make field trash fully float, foundry goods easily produces inclusion defect, especially for the high inside of wind power casting and surface quality requirements, product rejection or bad is easily caused.

Number of patent application relates to a kind of pouring basin for " CN201320578303.2 ", it is the well be provided with by steel housing, the base plate of housing bottom, base plate, the refractory brick laid in housing and around well temperature be 550 ~ 600 DEG C, baking baking in 2 ~ 3 hours forms; Described well comprises a pre-buried ceramic water oral pit, at ceramic water oral pit, lower floor is filled with fire clay, when distance gate land 20 ~ 30mm, plasticity mud is used to tie a knot, but, this application due to manufacture craft relative complex, cost high, so must repeatedly use, if repeatedly used, can not iron deposit water in pouring basin after cast terminates, otherwise molten iron is frozen in the inside, during taking-up iron block, pouring basin is by damaged.Cast simultaneously terminates not iron deposit water and has following problem: 1, last molten iron can enter running channel with the field trash of the floating collection in molten iron surface, increases field trash and enters the risk that die cavity foundry goods produces inclusion defect.2, the feeding capacity of casting moulding system liquid state declines, and to requiring higher wind power casting, increases the risk of Shrinkage Porosity defect.

Utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, designs that a kind of structure is simple, cost is low and after having and making field trash fully float, automatically opens the pouring basin of cast.

To achieve the above object of the invention, a kind of pouring basin for wind-power spherulitic graphite cast iron part is provided, comprises: steel housing, the moulding sand being located at inner chamber and the cast gate be connected with casting mold sprue, wherein, the top of cast gate arranges seam, and the top of seam arranges iron sheet.

Described moulding sand surface scribbles at least two-layer flame-retardant coating layer.

Described steel housing comprises: be arranged at some reinforcements of inner surface and be arranged at the hanger of outer surface, wherein, being filled between each reinforcement by moulding sand.

The diameter of described iron sheet and the diameter of seam match, and the thickness of iron sheet is 1-2mm.

Described moulding sand uses furane resins sand molding.

The pouring basin that the utility model provides, the field trash fully do not floated before pouring basin can be avoided to be full of iron liquid directly enters running channel and casting mold, reduces the generation of dreg defect.The advantage of the utility model hinge structure is:

1, pouring basin housing steel make, and inwall has reinforcement, make its not easily deformed damaged, can reuse, and can strengthen the combination of moulding sand and housing;

2, moulding sand uses furane resins sand molding.The few cost of resin sand consumption is low, consistent with the molding sand of workshop moulding production and application, convenient production;

3, the moulding sand surface for inner chamber is brushed with flame-retardant coating layer, can ensure that middle-size and small-size nodular iron casting does not produce sand washing;

4, gate location has seam, and after placing iron sheet, cast gate is sealed, and is full of iron sheet fusing after iron liquid, automatically opens cast until pouring basin.

Accompanying drawing explanation

Fig. 1 is the utility model pouring basin structural representation;

Fig. 2 is the structural representation with the utility model pouring basin matching die;

Fig. 3 is the middle smallclothes pouring basin schematic diagram of prior art.

Detailed description of the invention

Below in conjunction with the drawings and specific embodiments, the utility model is described further.

As shown in Figure 1, the present embodiment pouring basin comprises: steel housing 1, the moulding sand 4 being located at inner chamber, flame-retardant coating layer 5 and the cast gate 8 be connected with casting mold sprue, and wherein, flame-retardant coating layer 5 is applied to the surface of moulding sand 4, arrange seam 6 above cast gate 8, seam 6 top arranges iron sheet 7.

Described iron sheet 7 diameter and seam 6 diameter match, and iron sheet 7 thickness is 1-2mm.

Described steel housing 1 comprises: be arranged at some reinforcements 2 of inner surface and be arranged at the hanger 3 of outer surface, wherein, being filled between each reinforcement 2 by moulding sand 4.

Described moulding sand 4 uses furan resin-sand.

The large mouth of steel housing 1: 650mm × 450mm, osculum: 600mm × 400mm, height 400mm, the large mouth of steel housing 1 is placed on downwards on the mould of Fig. 2, fills up the tamping of furans resin sand, trip out Deng after furan resin-sand sclerosis, form moulding sand 4, sand layer thickness: sidewall 80mm, the end: 100-150mm, form flame-retardant coating layer 52 times at furane resins layer of sand external coating alcohol radical fireproof coating, fireproof coating main component is ZrO ₂and SiO ₂, this flame-retardant coating layer can stand washing away of high temperature liquid iron.

Seam 6 diameter 80mm, iron sheet 7 diameter 75mm, thickness 1.5mm, cast gate 8 diameter 60mm, cast gate 8 is connected with casting mold sprue, and in pouring basin, molten iron is full of, inclusion floating, and after iron sheet 7 dissolves, the clean molten iron in pouring basin bottom steadily enters casting mold from cast gate 8.

Below the preferred embodiment that the utility model is created is illustrated, but the utility model is created and is not limited to described embodiment, those of ordinary skill in the art can also make all equivalent modification or replacement under the prerequisite without prejudice to the utility model creative spirit, and these equivalent modifications or replacement are all included in the application's claim limited range.

Claims

1. for a pouring basin for wind-power spherulitic graphite cast iron part, it is characterized in that, comprising: steel housing, the moulding sand being located at inner chamber and the cast gate be connected with casting mold sprue, wherein, the top of cast gate arranges seam, and the top of seam arranges iron sheet.

2. pouring basin according to claim 1, is characterized in that, described moulding sand surface scribbles at least two-layer flame-retardant coating layer.

3. pouring basin according to claim 1 and 2, is characterized in that, described steel housing comprises: be arranged at some reinforcements of inner surface and be arranged at the hanger of outer surface, wherein, being filled between each reinforcement by moulding sand.

4. pouring basin according to claim 3, is characterized in that, the diameter of described iron sheet and the diameter of seam match, and the thickness of iron sheet is 1-2mm.