Process for manufacturing piano striking machine foaming ABS elements

A manufacturing method and the technology of an action, applied to household components, household appliances, and other household appliances, can solve problems such as insufficient resources, low precision, and difficult processing, and achieve strong regional adaptability, high precision, and high production efficiency. Effect

Inactive Publication Date: 2008-07-16
陈天浩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a wood resource-saving, production cost-saving and quality-improving device for the shortage of resources, difficult processing, low precision, low efficiency and high cost of the existing wooden parts of the piano action. Manufacturing method of foamed ABS (acrylonitrile-butadiene-styrene terpolymer) parts for piano action

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] A method for manufacturing a foamed ABS part of a piano action, comprising the steps of:

[0012] (1) 94.5% foamed ABS, 3.5% wood fiber, 1.97% weight regulator (such as glass fiber, etc.), 0.01% color regulator (such as plastic colorant, etc.), 0.02% White oil, mix and stir evenly, foaming ABS particles should be less than 9mm 3 , wood fiber particles less than 0.2mm 3 ;

[0013] (2) Put the above-mentioned mixture into a plastic dryer, and dry it for 4 hours at a temperature of 85°C;

[0014] (3) Put the dried mixture into the cylinder of the injection molding machine, control the temperature at 200°C, and inject the product into shape.

Embodiment 2

[0016] A method for manufacturing a foamed ABS part of a piano action, comprising the steps of:

[0017] (1) 96% foamed ABS, 2% wood fiber, 1.94% weight regulator (such as glass fiber, etc.), 0.02% color regulator (such as plastic colorant, etc.), 0.04% White oil, mix and stir evenly, foaming ABS particles should be less than 9mm 3 , wood fiber particles less than 0.2mm 3 ;

[0018] (2) Put the above-mentioned mixture into a plastic dryer, and dry it for 4 hours at a temperature of 90°C;

[0019] (3) Put the dried mixture into the cylinder of the injection molding machine, control the temperature at 210°C, and inject the product into shape.

Embodiment 3

[0021] A method for manufacturing a foamed ABS part of a piano action, comprising the steps of:

[0022] (1) 90% foamed ABS, 5% wood fiber, 4.98% weight regulator (such as glass fiber, etc.), 0.01% color regulator (such as plastic colorant, etc.), 0.01% White oil, mix and stir evenly, foaming ABS particles should be less than 9mm 3 , wood fiber particles less than 0.2mm 3 ;

[0023] (2) Put the above-mentioned mixture into a plastic dryer, and dry it for 4 hours at a temperature of 80°C;

[0024] (3) Put the dried mixture into the barrel of the injection molding machine, control the temperature at 190°C, and inject the product into shape.

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PUM

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Abstract

The invention relates to a manufacturing method of piano string striker parts. A foaming agent ABS, wooden fibers, a weight controlling agent, a color adjusting agent and white oil are mixed evenly in the method, and then the mixture is cast or molded in an injection molding machine. By adopting the method of the invention, the string striker parts are invulnerable to the environmental factors such as heat or coldness, of flexible adaptation, and strong wear resistance and corrosion resistance, high precision and mechanical strength and are more durable than wooden parts.

Description

technical field [0001] The invention relates to a method for manufacturing piano action parts, in particular to a method for manufacturing foamed ABS parts for a piano action. Background technique [0002] As we all know, global timber resources are becoming increasingly scarce. With the rapid economic development, countries are increasingly aware of environmental protection, and the control of timber felling is continuously strengthened, resulting in fewer and fewer timber resources in the global market, and even more lack of high-quality timber. In the past, the action, known as the heart of the piano, was made of high-quality wood for its parts. The production process was complex, the parts were difficult to process, the machining accuracy of the shape and size was low, there was a lot of waste, and the efficiency was low, resulting in high costs. Moreover, the wooden parts have the following disadvantages: 1) they are greatly affected by the environment, expand with heat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/78B29B13/06B29K55/02B29K105/06B29K311/14B29K309/08B29L31/00
Inventor 陈天浩
Owner 陈天浩
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