CN208772398U

CN208772398U - A kind of caliper body sand core with chill

Info

Publication number: CN208772398U
Application number: CN201821602285.6U
Authority: CN
Inventors: 郑小宝; 赵景洪; 戴卫
Original assignee: Huangshi Dongbei Electrical Appliance Co Ltd
Current assignee: Huangshi Dongbei Electrical Appliance Co Ltd
Priority date: 2018-09-29
Filing date: 2018-09-29
Publication date: 2019-04-23
Anticipated expiration: 2028-09-29

Abstract

The utility model discloses a kind of caliper body sand core with chill, with sand core ontology, the sand core ontology includes core print, first sand core body and the second sand core body, the height of second sand core body is higher than the first sand core body, core print is located at the lower section of the first sand core body and the second sand core body, first sand core body and the intermediate of the second sand core body form a cavity, the cavity is provided with chill, first sand core body and the second sand core body are equipped on the outer wall of chill and are painted with wrapping layer, the wrapping layer is mixed by ceramic powder and ethyl alcohol, pass through brushing, sintering, the first sand core body and the second sand core body are painted on after solidification equipped on the outer wall of chill；The utility model overcomes the defect that interiors of products present in the sand core that conventional method is made into using chill cooperation precoated sand to fill generates shrinkage cavity and porosity and stomata, reduce the workload of the subsequent cleaning polishing of product, production cost is reduced, production efficiency is improved.

Description

A kind of caliper body sand core with chill

Technical field

The utility model relates to components Foundry Production technical field, especially a kind of caliper body sand core with chill.

Background technique

In caliper body castings production, sand core can be all used under normal circumstances, and inner cavity, the Kong He of casting are formed by sand core The position that casting shape cannot shake out, in order to obtain qualified casting, sand core must have enough strength and stiffness；It is casting During part is formed, the energy of gas caused by sand core is in time outside discharge type；Resistance is small when casting is shunk, and is easy sand removal.In life Produce to interiors of products and surface quality requirements all very high casting when, it is necessary to use chill, sand core or chill can be assembled Sand core, in conventional production practices, a kind of scheme is the muti-piece chill to be differed in size according to product structure design, by chill core print It is arranged in die surface, centre reserves certain interval, and chill and sand core are put into lower core frame simultaneously when production；Another Scheme is exactly to design the sand core in chill gap, after sand core production, chill assembly is entered, but follow-up work can be generated and much be asked Topic such as molds Shi Yaoxiu sand core gap, or is acted with repairings such as coating reinforcement, when production directly under can assemble the sand core of chill i.e. It can.Above two scheme is since chill is put bad, and polishing work subsequent to product also increases very big workload, chill control Sand, which does not smash consolidation, between bad or chill can also have a huge impact product quality, serious to lead to scrap of the product, can be to life Production company brings very big loss.Therefore, a kind of caliper body sand core with chill is researched and developed to have a very important significance.

Summary of the invention

The purpose of this utility model leads to subsequent product polishing heavy workload, chill pipe aiming at current production decision Product quality can also be had an impact by controlling sand between bad or chill and not smashing consolidation, led to scrap of the product, provided a kind of band There is the caliper body sand core of chill.

The concrete scheme of the utility model is: a kind of caliper body sand core with chill, has sand core ontology, the sand core Ontology includes core print, the first sand core body and the second sand core body, and the height of the second sand core body is higher than the first sand core body, and core print is located at the The intermediate of the lower section of one sand core body and the second sand core body, the first sand core body and the second sand core body forms a cavity, the cavity Chill, the first sand core body and the second sand core body are provided with equipped with wrapping layer is painted on the outer wall of chill, the wrapping layer is by ceramics Powder and ethyl alcohol are mixed, by being painted on the first sand core body and the second sand core body after brushing, sintering, solidification equipped with the outer of chill On wall.

Preferably, core print described in the utility model, the first sand core body and the second sand core body use integral structure.

Preferably, the first sand core body described in the utility model and the second sand core body are solid construction.

The utility model uses core print, the first sand core body and the second sand core body by integral forming structure, in the first sand core body and The cavity of second sand core body is provided with chill, and is painted on the outer wall of the first sand core body and the second sand core body equipped with chill For fixing the wrapping layer of chill, which is mixed by ceramic powder and ethyl alcohol, passes through coating after brushing, sintering, solidification On the outer wall of the first sand core body and the second sand core body equipped with chill.The utility model is overcome conventional method and is cooperated using chill Interiors of products present in the sand core that precoated sand is made into fill generates the defect of shrinkage cavity and porosity and stomata, after reducing product The workload of continuous cleaning polishing, reduces production cost, improves production efficiency.

Detailed description of the invention

Fig. 1 is the main view of the utility model；

Fig. 2 is the right view of the utility model；

Fig. 3 is the face the A-A cross-sectional view of Fig. 2；

Fig. 4 is the structural schematic diagram of chill in the utility model；

Fig. 5 is the face the C-C cross-sectional view of Fig. 4；

Wherein: 1- core print, 2- the first sand core body, 3- the second sand core body, 4- cavity, 5- chill, 6- wrapping layer.

Specific embodiment

A kind of caliper body sand core with chill of the present embodiment has sand core ontology, the sand core sheet referring to Fig. 1-5 Body includes core print 1, the first sand core body 2 and the second sand core body 3, and the height of the second sand core body 3 is higher than the first sand core body 2, and core print 1 In the lower section of the first sand core body 2 and the second sand core body 3, the first sand core body 2 and the intermediate of the second sand core body 3 form a cavity 4, The cavity 4 is provided with chill 5, and the first sand core body 2 and the second sand core body 3 are equipped on the outer wall of chill 5 and are painted with wrapping layer 6, The wrapping layer 6 is mixed by ceramic powder and ethyl alcohol, by being painted on the first sand core body 2 and the second sand after brushing, sintering, solidification Core 3 is equipped on the outer wall of chill 5.

Preferably, core print 1 described in the present embodiment, the first sand core body 2 and the second sand core body 3 use integral structure.

Preferably, the first sand core body 2 described in the present embodiment and the second sand core body 3 are solid construction.

The present embodiment uses 3 integrated formed structure of core print 1, the first sand core body 2 and the second sand core body, in the first sand core body 2 It is provided with chill 5 with the cavity 4 of the second sand core body 3, and in the outer wall of the first sand core body 2 and the second sand core body 3 equipped with chill 5 On be painted with wrapping layer 6.The utility model overcomes the sand core that conventional method is made into using chill cooperation precoated sand to fill Existing interiors of products generates the defect of shrinkage cavity and porosity and stomata, reduces the workload of the subsequent cleaning polishing of product, reduces Production cost improves production efficiency.

Claims

1. a kind of caliper body sand core with chill, there is sand core ontology, the sand core ontology include core print, the first sand core body and The height of second sand core body, the second sand core body is higher than the first sand core body, and core print is located under the first sand core body and the second sand core body Side, the intermediate of the first sand core body and the second sand core body form a cavity, it is characterized in that: the cavity is provided with chill, first Sand core body and the second sand core body are equipped with wrapping layer is painted on the outer wall of chill, and the wrapping layer is by ceramic powder and ethyl alcohol mixing system At by being painted on the first sand core body and the second sand core body after brushing, sintering, solidification equipped on the outer wall of chill.

2. a kind of caliper body sand core with chill according to claim 1, it is characterized in that: the core print, the first sand core Body and the second sand core body use integral structure.

3. a kind of caliper body sand core with chill according to claim 1, it is characterized in that: the first sand core body and Two sand core bodies are solid construction.