CN103252890B - The autoclave molding method of nuclear power slot insulation - Google Patents

Abstract

The invention discloses a kind of autoclave molding method of nuclear power slot insulation, comprise the following steps: by prepreg by laying requirement lay on mould, with vacuum bag by mould and prepreg sealing, and be placed in autoclave, under vacuum conditions, through heating up, pressurization, insulation, cooling and stress-relief process, make prepreg blank become the slot insulation of required form, peel off vacuum bag the demoulding obtains slot insulation product.Mechanization degree of the present invention is high, applied widely, and the goods of production are closely knit, and dimensional tolerance is little, and voidage is low, steady quality, and production efficiency is high, although early stage, equipment investment was comparatively large, the die cost in later stage is low, and recessive input is relatively few, is applicable to producing in enormous quantities.

Description

The autoclave molding method of nuclear power slot insulation

Technical field

The present invention relates to a kind of autoclave molding method of nuclear power slot insulation.

Background technology

Existing large-scale generator rotor slot insulation, adopt laminated into type, inefficiency, complicated operation, properties of product are undesirable.

Summary of the invention

The object of the present invention is to provide a kind of operating efficiency high, the autoclave molding method of the nuclear power slot insulation of good product performance.

Technical solution of the present invention is:

A kind of autoclave molding method of nuclear power slot insulation, it is characterized in that: comprise the following steps: by prepreg by laying requirement lay on mould, with vacuum bag by mould and prepreg sealing, and be placed in autoclave, under vacuum conditions, through heating up, pressurization, insulation, cooling and stress-relief process, make prepreg blank become the slot insulation of required form, peel off vacuum bag the demoulding obtains slot insulation product.

During intensification, heating rate is 3 DEG C/min ~ 5 DEG C/min, be warming up to 100 ~ 120 DEG C; During pressurization, rate of pressure rise is 30KP/min ~ 70KP/min, boosts to 0.8 MPa; Insulation is incubated 1.5-2 hour at 100-120 DEG C; During cooling, rate of temperature fall is 3 DEG C/min ~ 5 DEG C/min, be cooled to 90-100 DEG C; During release, decompression rate is 30KP/min ~ 70KP/min.

Mechanization degree of the present invention is high, applied widely, and the goods of production are closely knit, and dimensional tolerance is little, and voidage is low, steady quality, and production efficiency is high, although early stage, equipment investment was comparatively large, the die cost in later stage is low, and recessive input is relatively few, is applicable to producing in enormous quantities.

Process ration

Table 1

Performance comparison

Performance comparision is carried out to the identical product of lamination and autoclave compacting

Table 2

Below in conjunction with embodiment, the invention will be further described.

Detailed description of the invention

A kind of autoclave molding method of nuclear power slot insulation, comprise the following steps: by prepreg by laying requirement lay on mould, with vacuum bag by mould and prepreg sealing, and be placed in autoclave, under vacuum conditions, through heating up, pressurization, insulation, cooling and stress-relief process, make prepreg blank become the slot insulation of required form, peel off vacuum bag the demoulding obtains slot insulation product.

During intensification, heating rate is 3 DEG C/min ~ 5 DEG C/min, be warming up to 100 ~ 120 DEG C; During pressurization, rate of pressure rise is 30KP/min ~ 70KP/min, boosts to 0.8 MPa; Insulation is incubated 1.5-2 hour at 100-120 DEG C; During cooling, rate of temperature fall is 3 DEG C/min ~ 5 DEG C/min, be cooled to 90-100 DEG C; During release, decompression rate is 30KP/min ~ 70KP/min.

Claims (1)

1. the autoclave molding method of a nuclear power slot insulation, it is characterized in that: comprise the following steps: by prepreg by laying requirement lay on mould, with vacuum bag by mould and prepreg sealing, and be placed in autoclave, under vacuum conditions, through heating up, pressurization, insulation, cooling and stress-relief process, make prepreg blank become the slot insulation of required form, peel off vacuum bag the demoulding obtains slot insulation product;

During intensification, heating rate is 3 DEG C/min ~ 5 DEG C/min, be warming up to 100 ~ 120 DEG C; During pressurization, rate of pressure rise is 30KP/min ~ 70KP/min, boosts to 0.8 MPa; Insulation is incubated 1.5-2 hour at 100-120 DEG C; During cooling, rate of temperature fall is 3 DEG C/min ~ 5 DEG C/min, be cooled to 90-100 DEG C; During release, decompression rate is 30KP/min ~ 70KP/min.