CN101376260A

CN101376260A - Technique for producing single-handle washbowl plastic tap main body

Info

Publication number: CN101376260A
Application number: CNA2007100300275A
Authority: CN
Inventors: 潘嘉和
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-08-31
Filing date: 2007-08-31
Publication date: 2009-03-04

Abstract

The invention relates to a production process of a single-handle basin plastic tap main body. The process comprises the following steps: placing an insert, folding a model, injecting materials, injecting air, keeping the pressure, releasing the air, cooling, unfolding the mold and taking out a part. Through the above procedures, the produced plastic tap can not pollute water quality. The injection process does not need too high pressure. Therefore the module has a simple structure and long service life, needs no large injection machine, and has low loss. Since part high pressure air is discharged in the injected part, the material is saved and the construction cost is low.

Description

The production technology of single-handle washbowl plastic tap main body

Technical field

The present invention relates to a kind of production technology of single-handle washbowl plastic tap main body.

Background technology

Existing tap is to utilize metals such as brass, zinc silicon alloy, aluminium alloy by the moulding of casting processing technology, owing to make, gets rusty easily with metal material, and polluted water, and cost is higher.

Summary of the invention

Purpose of the present invention just provides a kind of production technology of single-handle washbowl plastic tap main body, and is cheap with the tap of this explained hereafter polluted water not, and mould structure is simple, and die life is long, need not large size plastic jetting-moulding device, and the mould loss is little.

For achieving the above object, the present invention adopts following technology:

Put inserts → matched moulds → shoot material → gas injection → pressurize → gas release → cooling → die sinking → pickup.

Described gas injection is to shoot material when injecting 60%-95%, and nitrogen to the whole die cavity that injects inertia again in plastic melt is full of.

The specific embodiment

Be to carry out on the basis of injection moulding early-stage preparations to implement before implementing following technology, early-stage preparations except common injection moulding, also to set up nitrogen control appliance and high pressure nitrogen pressure charging system, and injection mold will be set up, and gas injection is chewed, air flue and the external mouth of pipe, and specific implementation process is as follows on this basis:

1, put inserts: the mould of general tap has inserts, puts inserts before injection moulding earlier.

2, matched moulds.

3, shoot material: before shooting material, will set the time of the time of shooting material and gas injection, shoot material and inject 60%-95% of die cavity according to shot size.

4, gas injection: gas injection is to chew in the plastic melt of die cavity by the gas in nitrogen console and the mould to inject high pressure nitrogen, be full of until die cavity, this time in stage control and gas injection pressure are very important, and according to different products, gas injection pressure generally is controlled between 5 crust-180 crust.

5, pressurize: the gas pressure in the melt remains unchanged or slightly rises and makes gas continue to penetrate in plastics inner, cools off the contraction that causes with compensation.

6, gas discharges: make gas pressure drop to zero.

7, cooling: the working of plastics in the die cavity is cooled to have certain rigidity and intensity.

8, die sinking.

9, pickup.

The plastic tap main body of producing by top operation is because of being that plastics can polluted water, this Shooting Technique injection moulding does not need too big pressure, thereby mould structure is simple, die life is long, need not large size plastic jetting-moulding device, loss is little, part is arranged by the gases at high pressure emptying owing to annotate in the part, thereby the saving material, cost reduces.

Claims

1, a kind of production technology of single-handle washbowl plastic tap main body is characterized in that the branch following steps carry out: put inserts → matched moulds → shoot material → gas injection → pressurize → gas release → cooling → die sinking → pickup.

2, the production technology of single-handle washbowl plastic tap main body according to claim 1 is characterized in that: gas injection is to inject the nitrogen of inertia when injecting 60%-95% shooting material.