CN105350029A - Production process for nickel-shell die - Google Patents

Abstract

The invention relates to the technical field of die production, in particular to a production process for a nickel-shell die. The production process comprises the steps that an iron die is opened, texture etching is conducted on the iron die, a female die of a silicone female die is overturned, a resin electroformed die core is overturned, conductive paste is sprayed on the iron die, nickel electroforming is conducted, the iron die is washed, the die core is removed, mechanical machining of the nickel-shell die is conducted, and a finished product of the nickel-shell die is prepared. According to the production process, the delivery time is greatly shortened, and the cost is significantly reduced.

Description

Nickel shell die production technique

Technical field

The present invention relates to the technical field of die production, particularly relate to a kind of nickel shell die production technique.

Background technology

Flourish along with automobile industry, the comfortableness of people to automobile is had higher requirement, and the soft plastics of the simulated skin of increasing hard plastic materials and parts replaced.In the production process of soft plastics part, nickel shell mould is one of requisite mould in its production link.Due to himself and the reason such as characteristic of producing line, in soft plastics part production process, its die life not grow (about being approximately 25000 moulds) by nickel shell mould, thus causes its demand very greatly, and market scale is very large.Because the difficulty of nickel shell Making mold and complexity are sent out high very much, domestic not yet have producer to manufacture, whole dependence on import.The producer that can produce nickel shell mould in the world only has 5, is respectively two, Japan, and one, Germany, Korea S one, one, Portugal, wherein manufacturer of Portugal is that the parent firm of my company is in Portuguese branch office.Introduce this high-end technology in China and realize in Chinese localized production, no matter being the technically autonomous or reduction of cost for China Automobile Industry, having important practical significance undoubtedly.

Summary of the invention

The object of the invention is to provide a kind of nickel shell die production technique for the deficiencies in the prior art, but shorten delivery date widely, and cost also has and significantly reduces.

For achieving the above object, the present invention adopts following technical scheme: nickel shell die production technique, and it comprises the following steps:

Step 1, drives swage;

Step 2, carries out texture etching to swage;

Step 3, turns over silica gel master mold former;

Step 4, turns over resinous electricity mold core;

Step 5, carries out spraying conductive paste to swage;

Step 6, nickel electroforming, is transferred to the surface of mold from nickel ball or nickel cake by metallic nickel by direct supply, the accumulation mould surface nickel layer thickness along with the time reaches the thickness of 3 ~ 5 millimeters;

Step 7, washes swage;

Step 8, removes core rod;

Step 9, nickel shell mould carries out mechanical workout, thus makes nickel shell mould finished product.

In described step 6, nickel electroforming is the plating of single groove.

Beneficial effect of the present invention is: a kind of nickel shell die production technique of the present invention, not only shortens delivery date widely, and cost also has and significantly reduces.

Embodiment

The present invention is further illustrated below.

Nickel shell die production technique, it comprises the following steps:

Step 1, drives swage;

Step 2, carries out texture etching to swage;

Step 3, turns over silica gel master mold former;

Step 4, turns over resinous electricity mold core;

Step 5, carries out spraying conductive paste to swage;

Step 6, nickel electroforming; Electroforming by electrolysis, metal is deposited on mold thus manufactures or copy metal products, mold and metal deposit can be separated, by direct supply, metallic nickel is transferred to the surface of mold from nickel ball or nickel cake, along with the accumulation mould surface nickel layer thickness of time is to the thickness of 3 ~ 5 millimeters;

Step 7, washes swage;

Step 8, removes core rod;

Step 9, nickel shell mould carries out mechanical workout, thus makes nickel shell mould finished product.

In described step 6, nickel electroforming is the plating of single groove.Because the electroforming cycle is very long, every mold about needed about January, its washing needed for water consumption considerably less, nickeliferous Cleaning Wastewater generation is about 20 ~ 30 liters/cover nickel electroformed mould, maximum wastewater flow rate can not more than 200 ~ 300 liter/month, being about about 10PPM containing nickel ion concentration, is a kind of comparatively clean production technique.

A kind of nickel shell die production technique of the present invention, not only shortens processing step, provides cost savings, and substitute wooden model with swage, and be also have positive meaning for environment and ecology, it has following characteristics:

One, replicability is good, can copy the surface topography of mold exactly, and this is that other working methods are difficult to accomplish;

Two, unworkable interior profile processing can be changed the processing of into maneuverable outer mold surface;

Three, precision can be processed high, the part that surface roughness value is little;

Four, the size of electroforming part is unrestricted in principle;

Five, procedure of processing can be simplified.Common mechanical processing technique will through cutting, base, punching, turnning and milling, the processing step such as chamfering and welding, and electroforming can settle at one go shaping;

Six, metallic substance, especially nickel metal is saved, due to the characteristic of electroforming process, almost without the waste of metallic nickel.

The above is only better embodiment of the present invention, therefore all equivalences done according to structure, feature and the principle described in patent claim of the present invention change or modify, and are included in patent claim of the present invention.

Claims (2)

1. nickel shell die production technique, it is characterized in that, it comprises the following steps:

Step 1, drives swage;

Step 2, carries out texture etching to swage;

Step 3, turns over silica gel master mold former;

Step 4, turns over resinous electricity mold core;

Step 5, carries out spraying conductive paste to swage;

Step 6, nickel electroforming, is transferred to the surface of mold from nickel ball or nickel cake by metallic nickel by direct supply, the accumulation mould surface nickel layer thickness along with the time reaches the thickness of 3 ~ 5 millimeters;

Step 7, washes swage;

Step 8, removes core rod;

Step 9, nickel shell mould carries out mechanical workout, thus makes nickel shell mould finished product.

2. nickel shell die production technique according to claim 1, is characterized in that: in described step 6, and nickel electroforming is the plating of single groove.