CN104096799A

CN104096799A - High-strength turbine mould shell structure

Info

Publication number: CN104096799A
Application number: CN201310126489.2A
Authority: CN
Inventors: 刘惠明
Original assignee: JIANGYIN XINBAOLI METAL PRODUCTS CO Ltd
Current assignee: JIANGYIN XINBAOLI METAL PRODUCTS CO Ltd
Priority date: 2013-04-12
Filing date: 2013-04-12
Publication date: 2014-10-15

Abstract

The invention relates to a high-strength turbine mould shell structure which is characterized by including, successively from interior to exterior, a zircon surface layer (1), a first mullite sand layer (2), a second mullite sand layer (3), a third mullite sand layer (4), a fourth mullite sand layer (5), a fifth mullite sand layer (6) and a vermiculite layer (7), wherein mullite sand in the first mullite sand layer (2) is 60-80 in meshes, the mullite sand in the second mullite sand layer (3) is 30-60 in meshes, the mullite sand in the third mullite sand layer (4) is 30-60 in meshes, the mullite sand in the fourth mullite sand layer (5) is 16-30 in meshes, and the mullite sand in the fifth mullite sand layer (6) is 16-30 in meshes. By means of the special structure, a shell mould shell has a high-strength performance and a high thermal-insulation performance. A turbine produced with the mould shell is good in quality.

Description

High strength turbine formwork structure

Technical field

The present invention relates to a kind of high strength turbine formwork structure, belong to turbine manufacturing technology field.

Background technology

In turbine manufacture process, need to become turbine formwork at wax-pattern outer surface hull shape processed.Traditional turbine form strength is lower, and heat-insulating property is poor, makes the turbine of production second-rate.Therefore seek a kind of high strength, high heat preservation performance, make the good turbine formwork of the turbine quality structure of production particularly important.

Summary of the invention

The object of the invention is to overcome above-mentioned deficiency, a kind of high strength, high heat preservation performance are provided, make the good turbine formwork of the turbine quality structure of producing.

The object of the present invention is achieved like this:

A kind of turbine formwork structure, it is characterized in that it comprises that the zircon surface layer, first setting gradually from the inside to the outside does not carry out layer of sand, second and do not carry out layer of sand, the 3rd and do not carry out layer of sand, the 4th and do not carry out layer of sand, the 5th and do not come layer of sand and vermiculite layers, the described first sand that do not come that does not carry out layer of sand is 60 ~ 80 orders, the described second sand that do not come that does not carry out layer of sand is 30 ~ 60 orders, the described the 3rd sand that do not come that does not carry out layer of sand is 30 ~ 60 orders, the described the 4th sand that do not come that does not carry out layer of sand is 16 ~ 30 orders, and the described the 5th sand that do not come that does not carry out layer of sand is 16 ~ 30 orders.

Compared with prior art, the invention has the beneficial effects as follows:

The present invention adopts this special structure, makes turbine formwork have high strength, high heat preservation performance, and the turbine quality of production is better.

Brief description of the drawings

Fig. 1 is the structural representation of high strength turbine formwork structure of the present invention.

Wherein:

Zircon surface layer 1

First does not carry out layer of sand 2

Second does not carry out layer of sand 3

The 3rd does not carry out layer of sand 4

The 4th does not carry out layer of sand 5

The 5th does not carry out layer of sand 6

Vermiculite layers 7.

Detailed description of the invention

Referring to Fig. 1, a kind of high strength turbine formwork structure the present invention relates to, it comprises that the zircon surface layer 1, first setting gradually from the inside to the outside does not carry out layer of sand 2, second and do not carry out layer of sand 3, the 3rd and do not carry out layer of sand 4, the 4th and do not carry out layer of sand 5, the 5th and do not come layer of sand 6 and vermiculite layers 7, the described first sand that do not come that does not carry out layer of sand 2 is 60 ~ 80 orders, the described second sand that do not come that does not carry out layer of sand 3 is 30 ~ 60 orders, the described the 3rd sand that do not come that does not carry out layer of sand 4 is 30 ~ 60 orders, the described the 4th sand that do not come that does not carry out layer of sand 5 is 16 ~ 30 orders, and the described the 5th sand that do not come that does not carry out layer of sand 6 is 16 ~ 30 orders.

Claims

1. a high strength turbine formwork structure, it is characterized in that it comprises the zircon surface layer (1) setting gradually from the inside to the outside, first does not carry out layer of sand (2), second does not carry out layer of sand (3), the 3rd does not carry out layer of sand (4), the 4th does not carry out layer of sand (5), the 5th does not come layer of sand (6) and vermiculite layers (7), the described first sand that do not come that does not carry out layer of sand (2) is 60 ~ 80 orders, the described second sand that do not come that does not carry out layer of sand (3) is 30 ~ 60 orders, the described the 3rd sand that do not come that does not carry out layer of sand (4) is 30 ~ 60 orders, the described the 4th sand that do not come that does not carry out layer of sand (5) is 16 ~ 30 orders, the described the 5th sand that do not come that does not carry out layer of sand (6) is 16 ~ 30 orders.