The undeniable, basic fact is that no-one really WANTS to have to purchase an injection mold. It is the plastic parts that it produces that are wanted and that generate revenue to pay for either the injection mold that made them, or the next mold. Strip away all the technicalities and consider the basic function of an injection mold - it is nothing more or nothing less than a shaped heat exchanger.
Hot runner technology, with its advantages of low scrap rats, shorter the molding cycle times, has become an important direction of development of plastic injection molding process. In western countries, hot runner system are widely employed in injection molding process, in China mold making industry, hot runner system is also a trend since china injection molders face labor cost and raw materials increase.
There are many brands of hot runner system in the market, price, quality, delivery time, services are all need to be considered to choose the right one, Aco mold use different brands to meet customers' satisfaction, frequently to use hot runner brands includes Mold-master, husky, syventive, INCOE.D-M-E, etc.
A lot of defects occur frequently can be minimized by good mold design:
- Sink mark
- Surface defects
- Unbalance filling
- Many other common defects
A good mold design can reduce the manufacturing cost as well as shorten the delivery time, it also increases mold quality, productivity and provides best performance stability.
Die casting is a process in which the liquid metal or semi-liquid metal is forced into a reusable die very fast with high pressure and temperature.
Molten metal is injected into steel dies, high pressure ensure molten metal fills the empty space between the die halves, while metal is held in the die, it solidifies and cools, when solidification and cooling is completed, the die is opened, then the solid die casting is ejected. Die casting parts are usually made of aluminum, zinc alloy, it's much strong than plastic molded parts, parts made by die casting is widely employed in many different industries.
There are many kind of steel, for long runs production, a durable mold is required, the tool steel must be selected properly, for small volume production, steel selection can be as economic as possible as long as it meet the requirement of production demands.
How to choose the injection mold steel? Important steel properties include:
- Ease of machining
- Dimensional stability after heat treatment
- Wear resistance
- Surface finish
- Corrosion resistance
Mold is a kind of tool that form the molten plastic raw materials into designed shape and measurement, finishing, parts produced by utilizing mold is very common to see around your daily life, your phone case, most of the parts made in plastic in your car. When you want to product something in plastic massively, you would need employ molds to lower down cost and increase the efficiency. That's why the first issue would be discussed is mold when you send your unique design or sample for inquiry.
Cushion is used to ASSURE colete material mold cavity complete FILL 2 PACK is achieved. Precise molding uses a "FIXED" VOLUME shot size of a PLUNGER or screw pot like the SODICK system, where an ASSURED excess melt VOLUME is injected to make up for SHRINKAGE.
Melt cushion is added the Screw Inject STROKE because the shut-off ring has a "FLOAT" distance and the added CUSHION ASSURES a final PEAK PACK AMOUNT. Both Barrel ID and screw shut-off clearance change with WEAR.
Here are some advantages and reasons for choosing:
- Easy manufacturing. All operations in milling, and saving up to 2/3 actual time if made by aluminum instead of steel.
- Weight plays more important role (example in bigger sized molds and with many loose inserts to be inserted manually, it is easy to handle).
So the Aluminum tooling is cheaper than steel tooling.
We have manufactured a new Mold for an automotive part in our tool room. This mold consists of 2 cavity (LH+RH) with 7+7 lifters and 1+1 side core. The mold is quite a big one say nearly 2 ton. Now we are having the problem of Lifters getting jammed (scoring) and damaging the core insert as well. This scoring is really heavy. We could not produce a single good part till now. Because till the time there is half shot the mold works well. But when we fill the part completely then the scoring starts and the next shot cannot be done since the lifter has got this scoring and the machine cannot push the ejection forward any more due to lifter jam. The part material is PP. The lifters go in and out of the pocket smooth manually in mold dismantled condition.
From the manufacturer's perspective: they need to be responsive, fast, and demonstrate their manufacturing expertise immediately. Turn-around time for small-to-medium orders should be really, really, fast. Simplicity -- no customs, no overseas shipping. Provide as much advice and expertise to their designs that will ease the manufacturing process. Production molds are usually built to last a long life with high quality steel and mold components view more plastic parts 50-800 Ton thermoplastic injection molding along with secondary operation services view. Mold price is unlikely to be a major sales point, but total cost (overseas shipping, extra lead time, excise tax, risk to product, etc.) brings the conversation back to favoring local mold suppliers.
Q: Which method will you use to save energy and improve the efficiency for plastic injection molding? And for some drawbacks, the injection molding machine may not work as we expect.
A: The product is called variable frequency drive (VFD) with PLC from Gozuk. We add software and expertise to the project to profile for successful energy reductions and known as the best technology on the Planet for injection molding machine energy reductions.
To ask about "Best Injection Mold Tool Designer" you must quantify what specific type(s) of tooling you are most interested in. Since this thread is under Injection Molds, I would add that the typical tool designers are experienced with certain industries and thus are familiar with injection mould tools that support products that typically use certain size presses, materials and key processes which complement the product requirements.