PVC injection molding

PVC injection molding

What is the PVC?

It is Polyvinyl chloride polymer. It is thermoplastic resin with the cheapest cost.  Natural color is white or light yellow or translucent light yellow. PVC is one of most common resin using in the world.

Mechanical properties of PVC plastics depends on the relative molecular weight of polymer, plasticizer content and filler. In general, the filler content increase, decrease of tensile strength. Without the addition of plasticizer PVC is hard plastic. Adding plasticizer, softness, elongation and freeze resistance increased;  Tensile strength, glass transition temperature, brittleness and hardness, etc. are reduced

PVC began to soften at 65-85 ℃. 170 ℃ into began to viscous flow state.140 ℃ little decomposition, decomposition rate is increased with the increase of temperature, 190 ℃ produce a large amount of HCL gas. The chlorine content of PVC was as high as 56%, which has a flame retardant and Zixi; but also has good dielectric properties of electrical insulating materials, is excellent. In addition, PVC is a poor thermal stability of the polymer, can gradually break down to release HCl in optical and thermal effect, at the same time, oxygen, ozone, cyanogen chloride and some active metal (such as copper, zinc) ions, the degradation speed

PVC injection molding parts application

PVC injection molding parts used for plastic pipe fittings, electric socket, electric box, electric meter enclosure, shoe sole， automotive plastic part, electric product enclosure and construction plastic parts(window framer, plastic accories on window, tube connector and floor board) etc.

Tips for PVC injection mold quotation and inquiry

Choose the right steel for PVC injection mold, you should choose the corrosion prevention stainless steel due the there is a little HCL gaseous fluid during the PVC injection molding. Normally you can choose 420 SS.For big amount production, if you choose the LKM steel, we suggest you choose LKM 2316(h); For ASSAB steel, you can choose ASSAB S 136(h). Regarding the DAIDO steel, you can choose NAK80 . If you just need the make the prototype mold for PVC injection molding, you can choose still the S50C and aluminum. If you can not specify this, your mold supplier will offer big difference price on your price list.

Choose the right cavity for PVC injection molding, normally the cavity quantities is based on your mold life and your plastic product, you can also choose family mold for PVC mold. Sometimes you missed to specify this, you will get lots of big difference price from China mold company.  This is very easy to specify, you can review the mold life post to learn more. You can also ask your suppliers to consider the most economical solution for the cavity.

Tell your China mold maker of the mold base steel and mold base specification(DME, HASCO or LKM or LKM EQV).  If you do not mind what kind of mold base. You can choose the LKM standard mold base thanks to this is the most economical and qualified solution for the mold base in China. For the mold base with HASCO and DME guide system and components, most of China mold supplier is custom made from the mold base company, the inferior strength is expensive and quality is not stable compare to the standard mold base.

Specify if you need hot runner system and brand. Normally for the famous hot runner system such as DME ,HASCO ,INCOE ,YUDO, Synventive, HUSKY, Mastip and MOLDMASTER etc. It is all available in China. But the cooperation between your China mold supplier and hot runner system provider is not the same. If you need the leave the mold in China for production, then your mold maker will consider this. Otherwise you should consider if you need to use hot runner to save the resin cost or your product need the hot runner to have better quality or your plastic product really need the hot runner as limited on the plastic product structure and mold design.

PVC injection molding

Clear plastic enclosures for electronics manufacturing solution

Clear plastic enclosures for electronics manufacturing solution

We will talk about clear plastic enclosures for electronics manufacturing solution from the design to the manufacturing on this post. We will show you the normal clear plastic enclosures for electronics manufacturing solution, also it is the cost saving and safety solution.

Clear plastic enclosures for electronics design

Clear plastic enclosures for electronics design is similar as the common plastic enclosures design, but you had better to have simple structure inside as possible as the structure inside of the clear plastic enclosures can be saw.  We should consider the mold ejection during clear plastic enclosures design as the worse ejection will leave the ejection pin mark insider of the clear plastic enclosure, it can be saw.

We should consider if we need ejection plate for ejection or ejection pin for ejection during the design, ejection plate for ejection will not leave the ejection mark on the clear enclosure, but we can not have lots of ribs inside of the clear enclosure, otherwise it is not possible to release the part from the mold.  Ejection pin ejection will leave the ejection pin mark on the clear enclosure, we should consider a good position to locate the ejection pin to make sure it affect the cosmetic issue as less as possible.

Clear plastic enclosures for electronics prototype manufacturing solution

Clear plastic enclosures for electronics prototype can be manufactured with plastic casting, CNC machining and SLA prototyping process. We should consider the clear plastic enclosures structure to choose the clear plastic enclosures prototype manufacturing solution. For more, please kindly review our post “Transparent plastic prototype manufacturing” .

Clear plastic enclosures for electronics mold manufacturing solution

Core and cavity steel for clear plastic enclosures for electronics mold manufacturing

This is very important to start the clear plastic enclosures for electronics mold. If you choose the wrong steel, you will waste money and time, sure you will have lots of trouble and have lots of wrong work.

1, If you order quantities is very low, something like 1000pcs each time and total demand is less than 10,000 pcs, you can consider normal steel such as P20, 2311, 2312 and 738 etc. preharden and non-stainless steel.

2, If you demand is more than 10,000pcs, we have to use through hardness 420 stainless steel.  We always suggest to use 420 stainless steel to have the good quality and save time on the polishing times.  Please kindly noted that there are lots of kinds of 420 stainless from different steel supplier.

The other things we should noted on the clear plastic enclosures for electronics mold manufacturing

• Running the mold flow and have the design for manufacture for clear plastic enclosures to find out if there is possible on flow and injection


• Use the inserts for the core and cavity as possible as the insert change will save cost than to change a whole cavity or core, please noted plastic make sure this will not affect the cosmetic surface.


• No welding on the surface core and cavity, otherwise it will be possible to see the defect on the molded clear plastic enclosures.


• Be careful to manufacture each components of core and cavity, if you made mistake, the remedial measure will less than the common mold.


• Choose the master to finish the polishing, not save cost on the polishing otherwise you will pay more


• Check the mold polishing surface before the mold trial

Clear plastic enclosures for electronics molding production

• You should have same strict quality control for the molding for this kind of molding. But you should pay more attention as below:


• Clear plastic enclosures surface


• Clear plastic enclosures welding line check


• Protect the clear plastic enclosures, you can use the plastic polypropylene sheet to cover the clear plastic enclosures, normally you can buy this common plastic sheet, you can told your plastic sheet supplier this is to use for clear plastic part surface protection. You never use the PVC sheet to protect the clear plastic enclosures, it will make the surface very bad.

 

 

 

Clear plastic enclosures for electronics manufacturing solution

Turnkey to compare plastic molded product manufacture price

Turnkey to compare the plastic molded product manufacturing price

Have you faced below issue during your inquiry

• Price is very big difference from your China mold supplier


• Unbelievable high price


• Unbelievable low price

How you can do this better to compare the mold and plastic molded product manufacturing price ?

If you are professional I think you can do this for the mold quotation

• Specify the mold steel


• Learn what steel is available in China and price level


• Specify the mold life


• Specify the mold base


• Specify the mold cavity


• Specify the resin with supplier brand


• Specify the surface fining for your product and mold

If you would like know more, read below

When you specify themold steel not just specify H13 or P20 etc., you can specify the steel like LKM H13 and Finkl P20 etc. You can specify the mold steel company brand as the price from different company are difference.

For the mold base, most of customers need the DME or HASCO standard thanks to that the components can be interchanged in North America and Europe.  To fulfill this demand China mold base supplier meet the market demand to custom make the mold base with DME components or HASCO components, this kind of mold base is still cheaper than the original mold base from HASCO or DME, but it is more expensive than the China standard mold base.

To be honest, China LKM mold base should be the best on based on economy and quality.

Custom standard mold base is more expensive than the standard one. Normally it is from two to three times more expensive.  Most of the non-standard mold base is custom made in China mold base company.

Same resin from different resin supplier is not the same.

If there is any simple way not request so professional as I just start to purchase the plastic molded products?

• You can inquiry from one of mold supplier what looks very professional


• Tell your mold company that you need economical or high quality


• Ask your mold supplier to specify the information like mold steel, mold life, mold cavity and steel supplier etc.

If you just need the plastic products and no need to move the mold in your country

Basically, tell your molding supplier:

• What kind of quantities you will order each time


• How frequency you will order


• The plastic product life (like how long you will order this product  or you would like to use this mold to produce how many parts)


• Plastic product surface finishing or secondary process


• What your plastic product used for

If it is multicavity mold or you have lots of product to make, tell your molding manufacturer:

• Plastic product color


• Potential color change for each product


• Each plastic part dosage for a final product


• Where the accurate area on your product is


• Where the fitting area for each component is

Above information will be useful for your mould supplier to specify the mold cavity such as muticavity and family mold. The mold supplier will consider the  economical and quality as well as secondary for your plastic product

We will share more details on our newsletter, may offer some toolkit to make this quotation work easier.

Turnkey to compare plastic molded product manufacture price

Plastic mold manufacturing solution for United States

Plastic mold manufacturing solution for United States

Seasky Tooling provide plastic mold manufacturing solution for United States customer, also we offer plastic molding manufacturing. We offer plastic mold manufacturing and plastic molding service covered below appliance.

• Automotive appliance


• Electrical & electronic


• Instrument gauge


• Home appliances


• Printer copier


• Household appliance


• Industrials


• Medical appliances & device 


• Communication appliances etc.

Key feature for the plastic mold manufacturing solution for Unite States

• DME standard mold base


• DME standard mold components such ejection pin, latch lock, side lock and cooling connectors etc.


• Hydro-cylinder with Parker, AHP Merkle, HP SYSTEMS or local standard.


• Just purchase mold steel from qualified mold steel supplier such as ASSAB, LKM, DAIDO, SCHMOLZ+BICKENBACH, Finkl and  Schmiedewerke Gröditz Etc.


• You can choose DME or LKM mold base for mold manufacturing. We can use DME standard components for mold base.


• Mold base certification and mold steel certification


• Design For Manufacture analysis before the mold making to find out all of possible issue for your plastic product design


• Mold flow simulation analysis before plastic mold making to find out all of possible issue of your plastic product design and find best solution for plastic mold design.


• Most of customers from United States to buy plastic injection mold from US. We can offer reference customers.


• Injection molding parameter report and samples inspection report submit with plastic samples


• Weekly report with picture for plastic mold manufacturing progress


• Project manager who speak English work together with you, most of project manager with more than ten years experience for mold industry.

Documents for plastic mold manufacturing offered to customer after mold finish

• 2D Mold Drawing


• 3D Mold Drawing


• 3D Part Drawing


• Mold steel certification

• Mold base certification


• Heat treatment certification


• EDM drawing


• Mold Photos

• Mold Trial Video


• Molding Report


• QA Report

Plastic mold manufacturing solution for United States Trade Term

• EXW, FCA ShenZhen, FOB ShenZhen, FOB HongKong, CIF, DDU

Plastic mold manufacturing solution for United States

Custom made plastic boxes manufacturing solution

Custom made plastic boxes manufacturing solution

To start custom made plastic boxes manufacturing we should have the process of custom made plastic boxes design, custom made plastic boxes prototype manufacturing and custom made plastic boxes mold manufacturing and injection molding.

Also we should consider the custom made plastic boxes manufacturing solution, most of custom made plastic boxes can be made by plastic injection molding process.

Custom made plastic boxes prototype manufacturing solution

There are a few common prototype manufacturing for custom made plastic boxes prototype:

• Plastic casting


• CNC machining


• 3D printing


• SLA

We should choose the custom made plastic boxes prototype manufacturing based on quantities you need and purpose of prototype. You can have answers on our plastic prototype manufacturing category.

Custom made plastic boxes injection mold manufacturing

Custom plastic boxes injection mold manufacturing solution is a process to make tooling for mass production of  plastic boxes manufacturing. Normally you have to make more than 1000pcs, then it is worthy of manufacturing a injection mold.

On custom plastic boxes mold manufacturing inquiry, you should provide following information for your custom plastic boxes manufacturer:

• 3D and 2D custom plastic boxes drawing


• Sometimes 2D drawing is not prerequisite


• Normally your custom plastic boxes manufacture can read 3D drawing in IGES, STEP and  X_T etc. format and 2D drawing in DWG, DXF, PDF, JPEG and BMP etc. format.


• How many piece you need to order each time for plastic boxes


• Custom plastic boxes injection mold life


• If you need to have the multiple color, you should specify quantities for each color and each order for your China custom plastic boxes manufacturer

Sometimes, there is big difference for custom plastic boxes manufacture mold price, you can read “Turnkey to compare plastic molded product manufacture price” to make everything is clear.

Custom plastic boxes mold surface finishing

You choose have polishing, texture and sandblast surface finishing for the custom plastic boxes mold, this will make the custom plastic boxes with high gloss surface or texture.

Custom plastic boxes mold steel selection

Custom plastic boxes mold steel should be choose based on your mold life, plastic boxes resin and your plastic boxes production quantities. If you need to research this more, you should understand the different resin performance, injection mold life and injection mold steel performance.

 Custom made plastic boxes injection molding production

Custom plastic boxes injection molding production is the mass production process for custom made plastic boxes production.  You can choose different color for the custom plastic boxes, for color change of custom plastic parts, you can review “plastic injection molding color” to know more.

Also you can have lots of secondary process for custom plastic molded boxes such as painting, plate, silk-screen printing, ultrasonic welding and assembly etc.

Seasky Tooling offer custom plastic boxes manufacturing for UK, Germany, France,Sweden,Switzerland and Italy etc. Europe country , USA and  Canda North America,Brazil and Columbia etc. South America

Custom made plastic boxes manufacturing solution

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Customer stories

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Document and management study case for mold making-Seasky Tooling Group

Good and bad mold supplier

Mold flow analysis report example

single cavity mold flow

1 plus 1 cavity mold flow

Steel and mold base specification

LKM plastic injection mould steel

SCHMOLZ+BICKENBACH injection mould making steel

Plastic mold base steel

Mold making report & quality control

Injection mold order flow chart

Injection mold making weekly report

Injection molding document

Injection molding report

New plastic product development

New product development working flow chart

Payment

Proforma invoice and payment

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Mold company file download

Customer stories

Company product development stories

Advantage

Document and management study case for mold making-Seasky Tooling Group

Good and bad mold supplier

Mold flow analysis report example

CY0136-single cavity mold flow

CY0137 single cavity mold flow

1 plus 1 cavity mold flow

Steel and mold base specification

LKM plastic injection mould steel

SCHMOLZ+BICKENBACH injection mould making steel

Plastic mold base steel

Mold making report & quality control

Injection mold order flow chart

Injection mold making weekly report 

Injection molding document

Injection molding report

New plastic product development

New product development working flow chart

Payment

Proforma invoice and payment

 

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