Honing mould honing parts problem solution

4-1. All the rubber parts are thick and thin, why?

4-1-1. The mold itself is thick and thin because of uneven electric rubber lining.

4-1-2. If it is the thick part of the rubber lining die itself, the part of the rubber lining will be thin, because of the thickness of the mold, low temperature and fewer rubber paddles.

4-1-3. If it is the thin part of the rubber lining die itself, the part of the rubber lining will be soft and thick. Because of the thin mold, high temperature and easy cooking of the rubber paddle, the rubber parts will be too thick.

How to fix this problem?

4-2-1. If the part is too thin, that is, the enamelling part is too thick, wrap a layer of iron sheet in the mold side to reduce the temperature.

4-2-2. If the parts are too thick, that is, the parts are too thin, it is generally impossible to add iron sheet to the parts where the molds are too thin, so that the mold temperature in the parts that are too thick is the same, and the thickness of the parts that are honed is the same.

How to solve the problem of raw glue in the rubber parts

5-1. Improve the temperature of the rubber lining furnace

5-2. Extend the time for honing glue

Injection point

Oil injection should follow up and verify the following matters:

1. Injection time

2. Allowance time (fatigue, physiological rating, usually 20% of fuel injection time

3. Standard working hours =1+1+4

4. Mold washing time and mold washing times (usually for the number of oil injection washing once).

5. Oil-water ratio and dosage

The ratio is generally as follows: black oil 1:1= black oil: open oil and water

White oil 1:1.2= white oil: Boil oil and water

General ordinary oil such as yellow, red, blue ratio 1:1.7

6. Production balance ---- row pull

Standard working hour setting

Production operations and processes ----- Requirements/precautions.

7. Job process improvement, mold improvement and the role of container (add fixture)

Note: Usually 1 liter of oil can hold 7 guns

8. Decorate the look

9. Pre-production estimation capacity, injection load, amount of paint used, calculation of production capacity - can be compared with the number of workers on delivery ----

Hard glue open oil water A580A God water ring ethyl ketone anti-white water 414(wipe fly oil)

Soft Glue Open Oil Water A760 Facial Wash Water 563 Butanone (MEK)

Acetone probutanone plus face wash

Soft rubber injection parts can be hardware open oil wipe oil.

Hard glue spray parts can use soft glue to open oil and wipe oil.

ABS immersed in butanone (MEK)-----ABS glue (emulsion) adhesive ABS parts

* Cycloacetone should be added to the paint in rainy days

To increase the brightness of the color, spray a room of cycloacetone on the surface of the hoarse oil color.

Production requirement

1. Glue

1-1. Refer to the Parting Table for the data of rubber lining

1-2. The color of the glue should be matched (the time of the glue is 2 minutes).

1-3 rubber parts can not have miscellaneous points, raw glue, bubbles, scratches, deformation, depression

1-4. The rubber parts should be discharged neatly after the furnace

Step 2 Inject

2-1. The beer is not allowed to have water lines, bubbles, color mixing, uneven water flow, shrinkage and other beer plastic defects

2-2. When the beer parts dewatering port, he should use water scissors or treasures knife in order not to pull it to prevent it from breaking

3. Spray oil

3-1. No oil, oil, flying oil, scratching, teeth, less than the edge phenomenon

3-2. The color should be correct and in alignment

The reason for the oil spraying parts is that the rubber parts are not clean and greasy before the oil spraying

4. Paint appearance

4-1. Paint is wrong/dull

4-2. Matte colors

4-3. Flying oil/oil color out of line/not in place

4-4. Exposed bottom/cracks/bubbles

4-5. Short work/oil loss >4%(oil loss >4% during boundary oil test)

4-6. Touch/wipe flowers

4-7. Paint stains

4-8. Paint sticks to foreign objects

4-9. Smell

5. Pad printing appearance

5-1. The paint color is wrong/dull

5-2. Word (pattern) misalignment/shift/not in place

5-3. Blurring/misalignment/fuzz/oil throwing

5-4. Oil drop >4%/ chlorine bubble/crack

5-5. Scratch/wipe

5-6. Ink, stains.

5-7. Fewer processes (missing printing)

use

According to the characteristics of polystyrene, polystyrene is mainly used to produce a variety of polystyrene toys. Like the enamelled Barbie doll, the enamelled undersea world toy and so on.

As the rubber toys are suitable for mass production, so the market is full of rubber toys, full of consumers eyeball. Generally win by price, take the form of goods in circulation. In China, brand operation is relatively few, currently the more famous brands are Kulu Underwater world and Baby Paradise. Due to the simple production process of rubber lining products, there are many unqualified products in the market. Consumers should carefully distinguish the smell of products when buying rubber lining toys, for example, good rubber lining products will not have a smell, while poor quality products may have a pungent smell. For everyone's health, it is suggested that you had better choose some brands to buy.

technology

So far many people think that polystyrene is a kind of material name, here, it is necessary to literacy, in fact, polystyrene, is a kind of manufacturing process name, due to the special manufacturing process, resulting in the addition of materials with some other things, also caused everyone to feel different from ordinary PVC toys, and then mistakenly identified, polystyrene is the name of the material.

The honing process is to apply copper layer by layer on the surface of the prototype (there may also be other metals, as for the process, I do not know for the time being), and then this layer of copper forms a simple metal mold, and then with PVC paste resin (also said to use PVC particles), plus various plasticizers to adjust the softness and hardness, etc., to form a latex state. Then pour the metal mold just finished, put the mold on the fire to bake, keep turning, make it heated evenly, then take out to cool, open the mold to take out the product. Generally speaking, it is mainly used to produce hollow molding products, and because it is made of PVC paste resin, paste resin is more delicate than ordinary PVC resin, so everyone will feel different. Compared with normal metal molds, this process has lower cost and convenient production, but the disadvantage is that there is no pressure in the process, and the liquidity of paste PVC is not very good, resulting in the inability to make very fine and complex products.