Wuxi High gloss Wire free Non trace Injection Molding Technology/High gloss Non fusion Mark Injection Molding Manufacturer◆ Injection molding reality
In order to determine the final appearance quality of injection molded products, manufacturers and demanders must reach a consensus on the limit samples. Because everyone agrees to shoot into it

There is no such thing as a perfect quality product in terms of appearance. approach“Welding marks and flow marks appear during injection molding,

Disadvantages such as uneven gloss are inevitable."so“Why do injection molded products have to have appearance defects??"This is because the technology for controlling the process is not yet complete

For the sake of goodness. Although there are many variables in the process, if there is a numerical control method, a certain and perfect quality product will always be produced. However, the injection molding process

and be not so. In the process of injection molding, the most important factors cannot be effectively controlled, among which the most representative factor is the inability to control them properly

Mold temperature Therefore, plastic has been facing such problems since its inception, and people have been helpless. They have also accepted the related quality issues and limitations

Reality that can be solved.

High gloss seamless injection molding technology/High gloss seamless injection molding
The concept of mold temperature in injection molding
Although the temperature cannot be controlled to the desired level in injection molding factories so far, people have been trying their best to find ways to control the mold temperature. follow

From the perspective of its development process, until the 1970s, the main use was for molding resins with lower molding temperatures, with the aim of quickly cooling the molds as much as possible; reached

In the 1980s, ABS resin and other materials that placed greater emphasis on appearance emerged, increasing mold temperature and improving appearance quality. Afterwards, it helps prevent fatal defects in ABS

The concept of stress cracking emerged, and in the 1990s, high heat resistant engineering platics such as polycarbonate and PEEK began to emerge,

The emergence of liquid crystal resins (LCP) such as Arylate resin highlights the necessity of heating the mold temperature to above 200 ℃, and it is also used in general appearance products

The requirement to manufacture injection molded products with no coating or defects has been raised with people's increasing concern for environmental protection. But in reality, the mold temperature is heated to

There are many difficulties at 200 ℃, and due to thermal expansion, there may be problems with the braking parts of the mold. In some cases, injection molded products may adhere to the mold and cannot be cured

The problems of burrs, Burrs, and shrinkage in the parting area caused by separation and high temperature are not applicable in practice.

What phenomena will occur when using ultra-high temperature heating molds for injection molding?
So what would happen if the mold temperature is heated to the required ultra-high temperature of 200 ℃ or above? People who have not experienced it will never know. At the same time, only

Knowing this phenomenon is necessary to understand the many problems caused by low mold temperatures in previous injection molding technologies. Generally speaking, people generally believe that the temperature of the mold rises

It will cause strong shrinkage and increase surface gloss, but in fact, the results obtained by heating the mold at ultra-high temperature and cooling it confirm that the above assumption is completely wrong.

A brief description of the phenomena that occur during the injection molding process using ultra-high temperature heating molds.
1) Changes in molding conditions
-Reduction of injection molding pressure
220 ºCompared to 120 at C timeºReduce C by 30-40%
220 ºCompared to 40 at C timeºReduce C by 50-60%
-The reduction of injection molding pressure difference between Gate and End filling areas is about 60%
2) Changes in molded products
-The surface density of the molded product has been perfectly improved
When using low-temperature molds, the surface of the product is composed of fine bubbles
-Perfect shore groove pattern with decay decoration pattern
-Shrinkage&# 63963; reduce
-Complete removal of sink marks
-Welding lines/Flow marks/Gate marks/Setting phenomena and other surface issues; The perfect removal of positive phenomena

-Complete removal of surface bubbles (including Swirl mark and Silver during foaming)

High gloss seamless injection molding technology/High gloss seamless injection molding
High gloss mold temperature machine (fast cooling, fast heating)It uses electric heating to heat the resin to the melting temperature within 15 seconds

(Molding temperature) 300 ℃, only heating the surface of the mold (heating the core), and then cooling it to 15 ℃ for about 30 seconds using ultra-high temperature mold temperature control technology.

◆High gloss mold temperature machine (rapid cooling and rapid heating) can achieve better injection molding conditions

Scope of application of high gloss mold temperature machine
1. Paintless EnclosureUncoated accessories
-Completely remove welding lines/flow marks/gate marks, etc
-Completely matte surface

2. Super Glossy Part with Pure blacknessFeaturing pure black super smooth accessories
-Soil colored ultra-high gloss surface that cannot be obtained by coating

3. Dual effect of Quality innovation and Cost Down
The dual effect of quality improvement and cost reduction
-Productivity improvement/weight reduction

4. 0.10mm Extreme then wall injection molding
0.10 mmThinner than thin-walled injection molding

5. Soild skin structural foam injection molding
Solid film structure foam injection molding
-Ultra high lightpoolsurfaceofsend outbubbleinjection
-Maximum achievableweightminusfew50%

6. Micro structure patterning injection molding
Microstructure injection molding

7. Optic injection molding productLight injection molding products
-removeprismLCDLight Guide/Plastic hardtray

8. Paintless EMI shield injection moldingUncoatedEMIshieldinjection
-containmetalsBelonging to fiber/Carbon fiber productionarticleThe freedom ofinjection

9. Upgrading the plastic metalizing and sputteringHigher grade plasticsmetalsBelonging to sprayApplication methodandsprayinglaw
-platefilmAdhesive strength increased by 5times/Ultra finefinewayplatemetals

1. Audio decorative window

Injection moldingproblem

-Poor appearance quality of molded products, as shown in the example (high defect rate during steaming)

(Weld line, Jetting, Sink mark, Flow mark, Gate mark, etc.)

-Gate position, number, and constraints of selected types

-NC processing fee burden

The effect of using a high gloss mold temperature machine
-Improvement of poor appearance quality of molded products

-Ease of Gate Selection

Steaming improves adhesion

2. 17 "computer monitor light guide plate

17 “PC MonitoruseremovePrism light guide plate(Micro pattern Shore groove)

3. 2 "LCD light guide plate

2Mobile phone removalPrism light guide plate(230 nm HologramShore groovePattern design)
Injection moldingproblem
-NANO HOLOGRAM PATTERN shore groove defect

-It is impossible to produce more than 2 Cavities (molded products not yet formed)

-Currently, Japan is producing a large quantity of 1 cavity

The effect of using a high gloss mold temperature machine
-Improvement of poor appearance quality of molded products

-Possible formation of 4 cavities

Improvement of shore groove patterns in nano holographic mode

4. Automotive exterior materials (strip treatment)

Injection molding problem
-Poor appearance quality of molded products, as shown in the example

(Weld line, Jetting, Sink mark, Flow mark, Gate mark, etc.)

-Constraints on Gate Position, Number, and Type Selection

-Difficult to detect luster

-Poor adhesion of gold plating (gold plating detachment occurs at the weld line during gold plating)

The effect of using a high gloss mold temperature machine
-Improvement of poor appearance quality of molded products

-Free selection of Gate, dimensional stability

Improved adhesion of gold plating

5. Automotive interior materials (buttons)

Injection molding problem

-Poor appearance quality of molded products

(Weld line, Sink mark, Gate mark, G/F surface phenomenon)

-Constraints on Gate Position Selection

-Difficult to detect patterns of non light corrosion

The effect of using a high gloss mold temperature machine

-Improvement of poor appearance quality of molded products

-Ease of Gate Selection

Discovered a pattern of non light corrosion

6. Automotive exterior materials

Injection molding problem

-Poor appearance quality of molded products

(Weld line, Jetting, Sink mark, Flow mark, Gate mark, etc.)

-Constraints on the selection of gate position, number, and type (excessive pressure at the gate location can cause mold cracking)

-Post processing procedure (Spray)

The effect of using a high gloss mold temperature machine

-Improvement of poor appearance quality of molded products

-FAN Gate Selection (2EA), "HYUNDAI" Mark Partial Crack Removal/Dimensional Stability Improvement

Improved durability of molds

7. PDAFront cover

Injection moldingAnticipated issues

-Gas segregation phenomenon (flame retardant PC/ABS)

-Welding lines appear on the entire surface, and the appearance quality is poor during post-processing (40-60%)

-Constraints on Gate Position, Number, and Type Selection

-Difficult to detect luster

Use a high gloss mold temperature machineeffect

-Maximizing the appearance quality of molded products (completely removing weld lines, sink marks, flow marks, and gate marks)

-Discovered high gloss appearance

Reduce injection pressure and gate balance for Multi gate, improve dimensional stability

8

Injection moldingproblem

-Poor appearance quality of molded products

(Weld line, Jetting, Sink mark, Flow mark, Gate mark, etc.)

→ High defect rate during post-processing, coating treatment

-Constraints on Gate Position, Number, and Type Selection

Use a high gloss mold temperature machineeffect

-Improvement of poor appearance quality of molded products

-Ease of Gate Selection (Pin Gate 2EA)

-No painting, saving costs

-Dimensional stability

-High gloss surface