SU1431930A1 - Embedded fitting - Google Patents

Abstract

The invention relates to foundry, in particular, to the manufacture of shaped, fused cast refractory products. The aim of the invention is to improve the quality of the castings. The embedded part — for forming shaped refractory castings — consists of a metal frame 1 rigidly fixed in a mold and covered with a layer of sandy molding mass 5. The upper part of the embedded part is made in the form of a thin-walled quartz shell 4 supported on a piece 3 of chamotte light weight, and the ratio the mass of the casting and the total mass of the embedded part is defined within (1:15) -

Description

WITH/)

 with

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Thebes 1

The invention relates to foundry manufacturing, in particular, to the manufacture of shaped plastic-cast refractory products.

The purpose of the invention is to improve the quality of castings.

Figure 1 shows the embedded part, section; 2 and 3 - installation of embedded parts in the mold.

The part consists of an aluminum frame 1, fireclay lightweight ppattin 2, supporting lightweight part 3,; thin-walled quartz shell 4: and sandy molded mass 5, when molded, it is located on the metal pallet 6, in the molding edge 7 ,. Frame 1 has sockets for installation; ki mounting bolts.

The manufacture of the rod is performed in the following sequence. A molding 7 and a metal frame 1 are installed on the metal pallet 6 and the lower half of the part is sandblasted, then the quartz envelope 4 is installed on the support part 3, which is formed by the sand mass.

Drying is done in the usual way at a temperature of up to 10 hours. The total weight of the product after drying should not exceed 12 kg.

The proposed mortgage item works as follows.

After casting the form (Fig. 2 and 3); melt heat absorption reduced

0.71 0.36

1.40 0.89

7.02 5.22

10.00 8.95

Dependence on the ratio of FM; KS

1.73 1, YO

1.27 0.99

6.37 7.02

10, 18 10.50

10.10 10.00

11.72 12, D9

five

0

five

0

five

due to the cavities 8 inside the mortgage part. Required for the shrinking period of the casting, the flexibility of the embedded part is provided by the loss of strength of the sand mass of the grinding mass 5, the aluminum frame 1 at these temperatures (more than 660 ° C) is melted.

The quality of castings of products depends on the mass ratio of individual elements of the embedded part, namely, the ratio of the mass of the casting to the mass of the embedded part and the mass of the sand component to the mass of the quartz shell.

The dependence of the quality of castings on the mass ratios of the individual elements constituting the embedded part is presented in the table.

Claims (1)

Invention Formula The set of parts for the manufacture of shaped refractory castings of the type of baths, including a metal pan, on which the molding box is installed, a metal frame covered with a layer of sandy molding material, which is equipped with a thin quartz stone in order to improve the quality of the castings shell mounted on the metal frame by means of the support element, and the ratio of the mass of the thin-walled quartz shell to the sandy forming mass is selected in the range of 1: 5 1: 8. 18.0 5.02 The same 19.8 5.86. Marriage cast Mala eaklad strength oh details 17.5 3.68 Marriage pouring 18.0 3.02Yearly from4, product 15.0 8.00 The Same TD, 10.6Mic -.Roll Marriage  //// A V /////////////// 777777 //. Compiled by S.Akinshn Editor M.Blanar Tehred A.Kravchuk Proofreader M.Iaroshn Order 5376/12 Circulation 528 VNIIG1I USSR State Committee For the inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Figg fig.Z Subscription