Die cavity and its preparing method

A mold core and base layer technology, which is applied in the field of mold core and its preparation, can solve the problems of reduced life and tolerance, decreased microstructure precision, and surface shape damage, and achieves high surface smoothness, good rigidity, and friction coefficient small effect

Inactive Publication Date: 2006-12-27
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0010] However, the mold core used often needs to continuously produce tens of thousands of pieces of the object to be processed
The nickel-phosphorus alloy with a microstructure is easy to break at the microstructure. After a large number of continuous production, the nickel layer of the mold core will be damaged due to frequent contact with the object to be processed, and the precision of the microstructure will decrease. Life and durability Reduced force

Method used

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  • Die cavity and its preparing method
  • Die cavity and its preparing method
  • Die cavity and its preparing method

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Embodiment Construction

[0024] see figure 2 , is a schematic diagram of the mold core structure of the light guide plate in this embodiment. The mold core 100 includes a base layer 110 , a protection layer 130 and a nickel layer 120 between them.

[0025] The nickel layer 120 is made of nickel-phosphorus (NiP) alloy, and its side adjacent to the protective layer 130 can be a smooth plane, and can also have a plurality of microstructures (not shown), the microstructures can be V-shaped grooves, or It is available in various shapes such as circular, trapezoidal, columnar, corrugated, etc., and can also be made according to the desired shape.

[0026] Because the nickel-phosphorus (NiP) alloy of the nickel layer 120 itself has a porous structure, the base layer 110 located on the surface opposite to the protective layer 130 needs to provide corrosion resistance. The material of the base layer 110 is stainless steel, which can be Ramax, Corrax Or stainless steel specific materials like Stavax. Among ...

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Abstract

Provided is a kind of mold, comprising a substrate layer, a nickel layer formed on the substrate layer and a protective layer formed on the surface of the nickel layer, which is made of diamond-like carbon. The present invention also provides a preparation of the mold, comprising providing a substrate layer, forming a nickel layer on the surface of the substrate layer and forming a diamond-like carbon protective layer on the surface of the nickel layer.

Description

【Technical field】 [0001] The invention relates to a mold core and a preparation method thereof. 【Background technique】 [0002] Mold cores are widely used in injection molding and compression molding processes, such as housings and internal components of consumer electronics products such as mobile phones, digital cameras, liquid crystal displays and PS (Playstation), using injection molding and direct press-molding (Direct Press-molding) technology The required components can be directly produced without subsequent processing steps such as grinding and polishing, which can greatly improve production efficiency and output, and the product quality is good. However, the direct compression molding method has very high requirements for the stability of the mold core, thermal shock resistance, mechanical strength, and surface smoothness. Therefore, the development of injection molding and compression molding technology mainly depends on the progress of mold core material and mol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C33/38B29C45/26B29C43/36
CPCB29C45/37C23C16/26C23C14/0605B29C45/372B29C33/424B29K2707/045B29C33/56
Inventor 陈杰良
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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