Manufacturing method for spray pipe of propeller

A propeller and nozzle technology, which is applied in the field of preparation of propeller nozzles, can solve the problems of small application range and shortage, and achieve the effects of wide application range, controllable quality and improved productivity

Inactive Publication Date: 2016-02-03
天津滨海超越绝缘制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems that the current nozzle preparation process has a small application range and the nozzle products have insufficient h

Method used

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  • Manufacturing method for spray pipe of propeller
  • Manufacturing method for spray pipe of propeller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Weigh 30 grams of phenolic glass fiber reinforced molding compound, put it into a cloth belt, put it in the oven, bake for 10 minutes, take it out, and heat the mold to 160 o When C, disconnect the thermostat and return to 30 o C, turn on the temperature controller and raise the temperature to 150 o C. Open the mold, clean the mold, apply the release agent evenly, and assemble the mold. Put the phenolic glass fiber reinforced molding compound into the upper mold cavity of the nozzle mold, close the die head, put the upper mold cavity on the nozzle mold, close the mold and inject pressure, and wait until the phenolic glass fiber reinforced molding compound is on the upper mold When the cavity becomes soft, pressurize the mold, and slowly inject the phenolic glass fiber reinforced molding compound into the cavity. After the phenolic glass fiber reinforced molding compound is completely injected, deflate the mold once for low temperature vulcanization for 180 seconds, and...

Embodiment 2

[0030] Weigh 50 grams of phenolic glass fiber reinforced molding compound, put it into a cloth belt, put it in the oven, bake for 10 minutes, take it out, and heat the mold to 190 o When C, disconnect the thermostat and return the temperature to 50 o C, turn on the temperature controller to raise the temperature to 160 o C. Open the mold, clean the mold, apply the release agent evenly, and assemble the mold. Put the phenolic glass fiber reinforced molding compound into the upper mold cavity of the nozzle mold, close the die head, put the upper mold cavity on the nozzle mold, close the mold and inject pressure, and wait until the phenolic glass fiber reinforced molding compound is on the upper mold When the cavity becomes soft, pressurize the mold, and slowly inject the phenolic glass fiber reinforced molding compound into the cavity. After the phenolic glass fiber molding compound is completely injected, deflate the mold once for low-temperature vulcanization for 180 seconds,...

Embodiment 3

[0032] Weigh 40 grams of phenolic glass fiber reinforced molding compound, put it into a cloth belt, put it in the oven, bake for 10 minutes, take it out, and heat the mold to 130 o When C, disconnect the thermostat and return to 30 o C, turn on the temperature controller to raise the temperature to 140 oC. Open the mold, clean the mold, apply the release agent evenly, and assemble the mold. Put the phenolic glass fiber reinforced molding compound into the upper mold cavity of the nozzle mold, close the die head, put the upper mold cavity on the nozzle mold, close the mold and inject pressure, and wait until the phenolic glass fiber reinforced molding compound is on the upper mold When the cavity becomes soft, pressurize the mold, slowly inject the phenolic glass fiber reinforced molding compound into the cavity, and after the phenolic glass fiber reinforced molding compound is completely injected, deflate the mold once for low temperature vulcanization for 180 seconds, press...

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PUM

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Abstract

The invention provides a manufacturing method for a spray pipe of a propeller. The method includes the following steps that (1) phenolic aldehyde glass fiber reinforced moulding compound is weighed and placed in an oven to be baked; (2) a spray pipe mould is heated and evenly coated with release agents; (3) the moulding compound is placed in an upper mould cavity of the mould, the mould is closed, and pressure is injected into the mould; (4) when the moulding compound is softened in the upper mould cavity, the mould is pressurized, and after the moulding compound is completely injected into the mould cavity, the mould is subjected to air bleeding, low-temperature vulcanization and pressurization; (5) turn-on and turn-off of a thermostat and air bleeding of the mould are controlled; (6) after the mould is cooled, the mould is opened; and (7) a product is taken out and placed in a cold mold to be subjected to positioning treatment, after the product is cooled, burrs are removed, powder is blown off, and the spray pipe is obtained. The manufacturing method for the spray pipe of the propeller has the advantages that operation is simple and convenient and the application range is wide. The spray pipe obtained through the manufacturing method has the characteristics of high-temperature resistance, corrosion resistance and insulativity. Various technical indexes are superior to technical indexes in common processes.

Description

technical field [0001] The invention relates to the field of new materials, in particular to a method for preparing a nozzle for a propeller. Background technique [0002] The nozzle is a device that accelerates the airflow by changing the geometry of the inner wall of the pipe section, including convergent nozzles, convergent-diffusion nozzles, adjustable nozzles, ejector nozzles, and two-dimensional nozzles. High temperature, corrosion resistance, insulation and other characteristics, widely used in gas turbine engines, liquid rocket engines, jet engines, solid rocket engines and other equipment. [0003] At present, the method used to prepare the nozzle in the prior art is mainly to prepare the metal shell by mechanical processing, and then prepare the coating on the inner hole of the metal shell by plasma spraying or chemical vapor deposition. This method can only be applied Due to the large nozzle size of the inner hole, it is difficult to prepare a multi-layer composi...

Claims

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Application Information

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IPC IPC(8): B29C45/76B29C45/78
Inventor 李歧全
Owner 天津滨海超越绝缘制品有限公司
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