CN202316917U - Casting core mould for built-in chilling block of cold core tool - Google Patents

Abstract

The utility model discloses a casting core mould for a built-in chilling block of a cold core tool. The casting core mould comprises an upper core box and a lower core box, wherein magnets are arranged in cavities of the upper core box and/or the lower core box; a chilling block is attached to the magnets; the quantity of the magnets is more than one; and the magnets are cylindrical or prism-shaped. In the casting core mould provided by the utility model, the chilling block is attached and fixed by the magnets on the cold core tool; the quantity and magnetic force strength of the magnets are selected according to the size of the chilling block, so that the effect for positioning the chilling block is excellent; the local heat stress of cast is eliminated; the local tissue of the cast is refined; the hardness and durability of the cast are increased; the cracks are avoided; and the defects of the products are reduced.

Description

The casting core of the built-in chill of cold core frock

One. technical field: the utility model relates to a kind of casting core, particularly relates to the casting core of the built-in chill of a kind of cold core frock.

Two. background technology: auto parts and components form blank through casting mostly, carry out machined then, finally form finished product.For thicker big, the interior wall thickness ununiformity even, reinforcement the is many parts of size when the casting in order to increase local cooling velocity, often need be in this part the inner chamber of corresponding casting core place chill.But, because the limitation of cold core frock casting core rod technology is difficult for the chill of chamber placement within it; It is big to penetrate sand pressure because in cold core frock casting process, blow; The chill position is easy to generate displacement, causes chill ineffective to the parts relative position, and then makes foundry goods defect ware occur.

Three. the utility model content:

The utility model technical problem to be solved is: overcome the deficiency of prior art, the casting core of the built-in chill of cold core frock of a kind of modern design, simple in structure, easy to use and good positioning effect is provided.

The technical scheme of the utility model is: the casting core of the built-in chill of a kind of cold core frock, contain core box and following core box etc., and said going up in core box and/or the following core box inner chamber is provided with magnet, and absorption is fixed with chill on the said magnet.

The quantity of said magnet is more than one.Said magnet is cylindrical or prismatic.

The beneficial effect of the utility model is:

1, the utility model adopts magnet absorption chill on the cold core frock; Can come the quantity and the magnetism intensity of select magnet according to the size of chill, thereby the good positioning effect of chill, foundry goods localized heat stress can be eliminated; Refinement foundry goods local organization; Improve casting hardness and wearability, prevent crackle, reduce product defects.

2, the utility model can be strengthened the consecutive solidification condition of foundry goods, enlarges riser feeding distance or scope, reduces rising head number or volume, makes whole foundry goods near solidifying simultaneously, both can prevent or reduce casting deformation, can improve product yield again.

3, novel in design, simple in structure, the easy to use and good positioning effect of the utility model, it is applied widely, is easy to promotion and implementation, has good economic benefit.

Four. description of drawings:

Fig. 1 is the structural representation of the casting core of the built-in chill of cold core frock.

Five. the specific embodiment:

Embodiment: referring to Fig. 1, among the figure, core box under the 1-, 2-magnet, 3-chill.

The casting core of the built-in chill of cold core frock contains core box and following core box 1, is provided with magnet 2 in following core box 1 inner chamber, and absorption is fixed with chill 3 on the magnet 2.As required, magnet 2 and chill 3 can be set in last core box inner chamber also, can also magnet 2 and chill 3 be set in last core box and following core box 1 inner chamber simultaneously, not detail one by one.

The quantity of magnet 2 is (to be two) more than one among the figure, confirms that as required magnet 2 is cylindrical or prismatic, and the concrete syndeton of magnet 2 and chill 3 is a lot, does not detail one by one.

The utility model is employed on the cold core frock places magnet 2 absorption chills 3, simple in structure, be convenient to dismounting, easy to use; Can come the quantity and the magnetism intensity of select magnet 2 in addition according to the size of chill 3, thereby the good positioning effect of chill 3, foundry goods localized heat stress can be eliminated; Refinement foundry goods local organization; Improve casting hardness and wearability, prevent crackle, reduce product defects.

The above; It only is the preferred embodiment of the utility model; Be not that the utility model is done any pro forma restriction; Every technical spirit according to the utility model all still belongs in the scope of the utility model technical scheme any simple modification, equivalent variations and modification that above embodiment did.

Claims (3)

1. the casting core of the built-in chill of cold core frock contains core box and following core box, it is characterized in that: be provided with magnet in core box and/or the following core box inner chamber on the said cold core frock, absorption is fixed with chill on the said magnet.

2. the casting core of the built-in chill of cold core frock according to claim 1 is characterized in that: said magnet quantity is more than one.

3. the casting core of the built-in chill of cold core frock according to claim 1 is characterized in that: said magnet is cylindrical or prismatic.

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