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Hot Runner Blog, Hot Runner Maintenance, Troubleshooting, Technologies & Technical Information by Anole Hot Runner

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Hot runner install notes

Date:2013-03-15

In the installation of hot runner, pay attention to the following points:
●inspect the entire hot runner system carefully, including size, resistance, quantity ;
●full inspection of the mould sizes which related to hot runner
●panels before, must use thetemperature controller box carefully test the runner, confirm its normal work, then continue to computer operation;
●before producing must use the multimeter to final inspection of hot runner, otherwise not allowed to boot;
●mold must be empty, empty shot should cover mold with cardboard B, and then die tryout.
●In order to help customers use hot runner correctly, training should be gave to the customers by the suppliers. The training contents should include:
The basic principles of the hot runner system .Based on electric heating, keeps the molten plastic flowing. Here, especially emphasized, hot runner work in the mold, need to have good heat preservation measures, therefore, in the production of the manifold cavity can’t use iron instead, this point is very important in injection molding.
●learn the correct way to install hot runner as well as disassemble hot runner.
●hot runner maintenance.To let customers know that, once the runner is out of work, we must remove it from the mould , this process will take at least 8 hours. For customers, the loss cost is about 10 times of hot runner suppliers. Therefore, maintained by full-time or part-time staff is very important.
Hope the above hot runner install notes can be useful to you. If you have any confusion, pls call me !
 

post by Ashley

skype:anole-4

email: service2@anole-hot-runner.com

 

Solution for your packing project---PET perform solution

Date:2013-03-14

Our company is specialized in offering customer with high quality multi-cavities PET perform mould. We choose top quality metal material for mould, hot runner system as well as hydraulic cylinder is excellent. From bottle design to the tool manufacture and supply of bottle blowing system equipments, we can guarantee a complete and effective service for all your plastic packaging needs.
We can offer you Max .120 cavities, full hot runner valve gate system, high speed injection PET molding.
High precision temperature can be controlled between the cavities. Valve gate can seal the material for fast without gate tail on PET. We use Germany heating elements high quality for longest mould lifetime.
Best service always standby for customers. All mould components and spare parts drawing is named with a unique code .you can feedback with this reference number to have spare parts within 3days.
 

Ashley

skpye:anole-4

email: service2@anole-hot-runner.com

 

 


 

 

CHINAPLAS 2013 The 27th China plastics and rubber exhibition

Date:2013-03-11

The 27th China plastics and rubber exhibition will be held during May 20th-23rd,2103 in Guangzhou ,China import and export fair pavilion.. 2,800outstanding plastics and rubber suppliers are selected all over the world.
Different from the old times ,the exhibition fair will last 4days this year, an half day longer .It will come to a close until 5p.m.May of 23.It can be help to increase the amounts of visitors in the situation ,the domestic and international economic is not optimistic.
As a professional plastic exhibition ,the second biggest whole the world ,Chinaplas shows a steady and rapid growth yearly. Adsale forecast the scale of the exhibition will be expanded next year.
Our company, Anole injection Tech, will be there to meet you . ANOLE HOT RUNNER mould injection system is developed by specialized designer in Portugal and manufactured in China .
 

Ashley

skype:anole-4

e-mail:service2@anole-hot-runner.com

 

 

Plastic injection molding solution china

Date:2013-03-07

Plastic industry is a booming up in the recent decades.In order to suit for the plastic product production,Molding industry also have a big improvement.In the Modern life,more and more plastic product making company using hot runner molding solution instead of cold runner solution.Anole hot runner is the plastic injection molding solution supplier in china.

We have imported world advanced  tooling processing and testing equipment, like deep hole drilling, SODIC EDM, machining centers, precision CNC lathes, CNC milling machine, etc.Anole hot runner choose the most stable and most durable heating system from Germany.As we are the general agent in china,so we can get cheap price.And customer do not to worry about the high value,it can help customer save a lot of cost.

Anole hot runner devote to the plastic molding industry for more than 2 decades,we are willing to offer customer the best molding solution and goods.With these years of development,Anole already become a new famous brand in the plastic molding market.

If you need molding solution help,pls feel free to contact me,welcome to visit us, our experienced engineer will help you with all the information you may need.

Post by Miss Tina
Email: service1003@anole-hot-runner.com
Skype: anole-01
MSN: anole-tech-01@hotmail.com
 

Hot runner system breakdown reason

Date:2013-02-28

Hot runner system breakdown reason
There are many factors will cause hot runner system breakdown, such as heating elements damage, temperature controller system inaccurate, hot runner spare parts broken and injection technology problem. We will talk hot runner system breakdown reason separately following.
1) Hot runner heating elements
In hot runner system, hot runner elements supply heat. If something wrong with heating elements, hot runner temperature will decline which will cause short molding of the products.
2) Temperature controller
a. Termocouple install fault will cause short circuit. When we do thermocouple replacement, we should pay special attention to the positive and negative terminals.
b. Controller meter out of control. It can’t show the correct temperature, it can’t control the temperature even though actually temperature is higher then set temperature.
3) Hot runner spare parts broken.
Hot runner nozzle tip abrade seriously. Hot runner system working in high temperature, long time working may cause steel transformation. Another inspect is loose of connecting piece. Hot runner manifold and hot runner nozzle is connected by gasket. Gasket broken may cause leakage.
4) Unreasonable of injection molding parameter
Hot runner mold is equal to extend injection machine nozzle to the mold. So hot runner temperature should fit with injection machine temperature.
Above are hot runner system breakdown reasons, If you have any question, please kindly tell us, we will offer you a best solution.
 

Cherry

MSN: anole-05@hotmail.com

skype:anole-05

Hot runner system maintain

Date:2013-02-28

Hot runner system maintain
    When hot runner breakdown, we should replace it according to expert advice so as to re-use it. We will talk hot runner system maintain.

1) Heating elements and thermocouple replacement

We always need replace hot runner heating element and thermocouple in maintain. We should make out the supplier, specific, model and other technical parameters, only the same specific product can be installed.

2) Hot runner components dismantle and install- external heating method.

First, take out the nozzle from the mold, screw off the sealing nut( If the nut connect with the nozzle body tightly, we can get the hot runner nozzle heated then screw it). Second, get out the hot runner nozzle tip, stainless steel sheath, coil heater separately. When we do install hot runner nozzle, we can refer the dismantle process. Put the coil heater and thermocouple in to the nozzle body first, then install the nozzle tip. Third, screw the sealing nut tightly. Last, put on the stainless steel sheath and confirm it.

3) Hot runner system maintain-manifold maintain

Manifold maintain is to replace the heating brand and thermocouple. Manifold maintain is more simpler. We should note the dimension precision, error should be controlled within 0.025mm.
Above are hot runner system maintain.

 

Cherry

MSN:anole-05@hotmail.com

skype:anole-05

Hot Runner Leakage

Date:2013-02-28

Hot Runner Leakage
In hot runner application ,one of problem is hot runner leakage. When hor runner leaking will damage mould or stop the production. Most leaking is because of improper handle.Hot runner leaking is usually occur in seal between nozzle and manifold. According to the general hot runner design standard, hot runner nozzle place has a rigid edge to ensure hot nozzle component height is less than practical groove depth of manifold.the purpose of design this deviation is to avoid thermal expansion to break components.
Another situation will also lead to leak—excessive heating. Because of poor adaptability of hot runner nozzle to thermal expansion,when hot runner nozzle rigid is deform result in seal pressure can’t prevent leaking. Under this situation,besides material leakage will cause damage. It also will cause unrecoverable damage to the nozzle due to stress pressure.

How to find hot runner leakage?
It’s difficulty to find the hot runner system leakage because we can’t see from mould outside. But operator can observe hot runner leakage from slight place . First, plastic injection machine injects plastic material but don’t arrive in cavity. In operate a new hot runner, operator should clear about melting runner include in how much shot capacity. Foe example,if melting runner including 3 times shot capacity,cavity don’t have melting material after 3 times injection. If not,it is stand for melting material has already run into manifold groove.
In the process of operate,another sign show the hot runner leaking is that cavity or plastic products incomplete fulling. In the plastic injection machine controller interface,this sign shows technological parameter suddenly change .
If operator suspected existing leakage condition,he should close the machine immediately and wait for system cooling and check. After cleaning system and find the reason why leaking,operator should carefully check all parts. Because too high temperature and in the process of clean will damage the parts.
Anole hot runner will offer you the best hot runner application solution. If you have any questions,please feel free to contact us.

Written by:Demi
Skype:anole-hc-03
Service1@anole-hot-runner.com

Hot Runner Application

Date:2013-02-28

Hot Runner Application

In general,mould could divided into two types,cold runner mould and hot runner mould. Hot runner mould is use heating equipment to keep plastic material keep melting. Hot runner mould is widely applied to industrial developed countries and regions because of short mould cycle and saving raw material.
hot runner application is bring a lot of developing change of mould maker.
Hot runner system could process many different plastic,from general-purpose plastic (PP and PE) to engineering plastic (PC and GFPA ) .
One of hot runner application important factor is mould maker need choose the right hot runner products according to their own needs.

The difference among all kinds of hot runner system is the heating way of molten ingot. We divided the heating way into internal heating and external heating. Just as the names suggested,internal heating system is heat from inner and directly install heating elements in melting runner ; while external heating system is heat raw material in external and make the material running through the channel under no barrier situation. External heating system solving the dead center in molten material channel.

Hot runner system is the extension of injection molding machine sprue. It will equally deliver the plastic material to each material-injecting port. The most effective method is install a balanced manifold to ensure that each plastic products could balanced fill. In the same time, this balanced design will avoid flash and short shot .

Different size of molten material channel will directly affect the hot runner performance. Unsuitable molten material channel size will result in plastic degradation or cause plastic parts uneven injection and incomplete filling. When choose molten material channel, mould manufacture should consider pressure drop, residence time, temperature, shear rate and color change frequency factors.

After decide the hot runner system types,next we should choose right gate type and filling speed. When choose gate type, we should take the following factors into consideration:gate trace,gate location and plastic raw material.Whether noncrystalline or crystalline plastics,different gate type is limited to specific raw material. Most hot runner system can match different size hot sprue.

Anole hot runner is specialize in this filed for many years. In here,we not only provide you a products,but also a perfect hot runner application solution. If you have any questions,pls feel free to contact me.


Written by:Demi
Skype:anole-hc-03
Service1@anole-hot-runner.com

Hot runner steel selection

Date:2013-02-28

Hot runner steel selection


The selection of the gate steel can have a significant influence on the performance of a gating method. Stainless steel is attractive as cavity steel for its corrosion resistance properties and for ease of polishing. While it is successfully used in many tip applications, it does have lower cooling issues much more critical. With a stainless steel of hot runner system, it becomes more difficult to absorb the heat generated in the gate and to transfer it to the cooling channels. Poor gate performance such high vestige o gate stringing can result. P20 is recommended for its overall properties in order to provide optimum cooling and gate performance.
Cooling is an important consideration for any hot runner gating application. In discussing cooling, emphasis has been placed on the performance of the tip type style gates. This is due to the demanding performance typically required from tip applications. Stainless steel are not recommended for hot runner gating application.
The hot runner system relies on the mold plates for mechanical support. Hot runner steel material advantages are the design of the hot runner system will minimize heat transfer into the mould plates, but some heat will transfer into the plates through both conduction and radiation. Cooling channels are needed in the manifold plate and in the top clamp plate to remove this heat. The purpose of the cooling is to maintain a consistent temperature. Variations in temperature will cause dimensional fluctuations due to thermal expansion. This can lead to wear of leader pins and interlocks, especially on large plates.
written by: Candy
Skype: anole-hc-02
MSN:  anole-hc-02@hotmail.com 

 

Hot runner usage limitation

Date:2013-02-28

After analysis plastic material property,according to the hot runner application,we can understand the hot runner usage limitation better.Not all plastic injection mould can use hot runner system.
 

For each goods using,all will advantage and disadvantages.Hot runner mould also can not exceptional.Even though using hot runner can improve the raw material utilization rate and production efficiency,shorten the forming cycle and reduce the cost.But using also exist certain restriction.Let do a simple introduction for the hot runner using limitation.
1)Choose hot runner must depend on the specific plastic property and its application.Some plastic is not allow to use hot runner,coloring plastic change is difficult and time consuming.And Plastic is difficult to change.
2)Sensitive heating plastic material has the big burn danger.When melt plastic after plastify,we must prevent the hot runner over heat.Once the hot runner inside dead angle will make the melt plastic stop moving and decomposition dangerous.
3)Raw material mechanical impurity will make the system weak,cause gate jams.
4)Require a certain experience, to avoid gate flow delay or nozzle leakage plastic.
5)Since of the nozzle diameter relationship,some small cavity quantity and distribution of restricted.
6)Due to using hot runner will enhance the mould thickness,overpass the mould injection machine dimension permission.
7)If lack of professional training,it is easy to damage the mould and the hot runner maintenance is more trouble.

When you plan to use hot runner for your plastic mould,please take these factors into consideration,make sure whether it is suit for you.If you willing to trust Anole,welcome to make detail consultation.Anole have many experienced engineer can help you choose the right project solution and offer our best service for you.


Written by Tina
skype:anole-01
service1003@anole-hot-runner.com

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