tech blog

/tech blog
12 11, 2016

The Heavy Truth about Injection Molds

2016-11-12T04:21:43+00:00

Seven hundred pounds of hardened stainless steel. That’s the average weight of a compression molding part. Some can weigh over a ton, some just a few hundred pounds, but any way you slice it, you certainly wouldn’t want one to fall on your foot. So how do you get this massive piece of metal to produce intricate plastic parts? It’s all in the tooling. Using CNC EDM machines to create the base of the compression molding part, it is the work of the tool maker to refine the steel to exact specifications. Precision work on the cavities is only part of the equation. The tool must also include gating to allow for proper melt flow and vents to allow gas and air to escape. Without the proper placement of these key features, parts will be subject to imperfections. If you are working with a turnkey plastic [...]

9 11, 2016

3 questions you need have consider before you need molds

2018-08-23T10:59:42+00:00

What quantities are needed? All injection molds are not made alike. If you are interested in smaller quantities or a shorter production run, an aluminum mold might be the best option. If your project requires large quantities over a longer time span, then a hardened stainless steel mold would be the best choice. The upfront cost of the latter option is much greater; however it pays for itself over the life of the tool. What is the size and complexity of the part? While many plastic parts are made through injection molding, there are other molding processes that can be used to produce a part. You can read about them in a related article. Briefly, smaller parts that are more complex are ideally suited to the injection molding process. Larger parts may be produced with injection molding or compression molding. Very large parts lend themselves [...]

5 11, 2016

Reflections on factory management from a mold manager

2016-11-05T08:03:12+00:00

I have been working for plastic molding making many years. Today I want to share you my factory management, which may be useful for u. This article show the analysis of three major aspects, which are quality, delivery, and cost during mold manufacturing process. Quality control about plastic molding making I mainly emphasize the role of supervisors, take design supervisor as an example. Whichever mold you design, the supervisor must do as the followings: Checking DFM and customer review reply. Leading the new model review meeting, processing, assembly, injection molding participation. Design a plan, the competent audit consent. Delivery control about plastic molding making This process mainly focus on two points. Mold scheduling fitter dominant, with the reminder of supervisor Supervisor dominant, with all departments subject to the operation Cost control about plastic molding making I will share three aspects with you about this process. Concept of quality perception Error and [...]

1 11, 2016

What can we supply with your design?

2016-11-01T09:46:44+00:00

We can provide precision mold making. Your Mold Once your design is finalized it is sent to our precision CNC department where our 3, 4, & 5 - axis machines begin the milling process of your tool. Using high quality aluminum blocks and our advanced precision mold making process enables us to quickly and efficiently create your custom tooling. The mold is complete only when detailed inspections confirm that your tooling captures every last detail of your custom plastic parts. Our precision mold making System is so advanced, we won't ask you to change your design. You can freely incorporate features into your part design that most mold makers simply cannot do. We can reduce a typical 6-12 week build time to just a few days. We can deliver production ready parts faster and at less cost than anyone. Also, we are the only mold maker [...]

29 10, 2016

What do you think of silicone rubber?

2018-08-23T10:59:42+00:00

Saying of custom silicone rubber, what do you think of? Woman's fake chest? You are a …guy! Surely not! I want to talk with you another things. Some kinds of gadgets people put it down. Your girlfriend, a funny girl with zero life skill. She even cannot stack clothes and tie shoes. You maybe say that you can do all for her. While you cannot at her side 24 hours. Thus, you need a custom silicone rubber for her.   Your baby, a honey in your hand. You always give him all things that you have. So soft baby bottles, weaned baby must feel colse. Portable small kettle that like a leaf is so warm. So you need custom silicone rubber.   There are only a child in family. Many parents always feed a pet that accompany with their child. Usually a dog or cat. [...]

25 10, 2016

Design of Classical Mold Structure

2018-08-23T10:59:42+00:00

Do you know classical mold design? There are two commonly used methods about handling the product upside down when design injection mold. The below picture can show. How do we do this? If the slider is interference by bone bit, the mold will be broken. Thus, we just think of a slide inside the slider, the slider below to share with you how to do the slider. 3 steps to finish it. about classical mold design First slide insert design, the bone inside the first bit without treatment, as shown.     2. Design a small slider, use the dovetail slot to drive a small slider, the pink box for the positioning block, the yellow drive block to the arrow direction of pumping, due to the role of the dovetail slot, slide down slide.       3. The use of inclined pillar-driven slider, the [...]

21 10, 2016

Focus on Plastic Injection Molding

2018-08-23T10:59:42+00:00

When working with any manufacturing process, such as zinc auto parts molding. A number of defects unique to that process commonly occur. This is true across many processes and industries, including injection molding and high volume injection molding. As we have previously discussed on this blog, there are several zinc auto parts molding defects; however, an injection molder who is vigilant about quality, like our team at The Spark, will be able to manage these injection molding defects, minimizing or eliminating them all together. I want to tell you our advantages with you. Zinc Auto Parts Molding Advantages: Mold design is subject to customer's requirements Injection molding machine utilizing certain specification of plastic and many others Our products include a variety of vacuum cleaners and plastic components These products are widely available to world-class large companies We have won a high reputation among [...]

17 10, 2016

Why do you need us?

2018-08-23T10:59:42+00:00

Our precision molds are designed and built using the latest state-of-the-art software and machine tool technology. Our fully equipped mold manufacturing division, Built-Rite Tool & Die, has CNC machining centers, EDM, Wire EDM, CNCN lathes and grinding equipment. Our molds are capable of accommodating both low and high-volume production requirements. Precision Mold The quality of our precision molds exceed those of your typical mold manufacturer, and parts can be molded and shipped right from the mold, skipping secondary operations that are typical of other tooling sources.   Our team of experts are here to work with you, the customer, through the whole process. You have input in: How your mold is designed How you want to control waste How to automate or not automate the molding process As partners with our customers, we work with you collaboratively to ensure that you get exactly [...]

14 10, 2016

About mechanical injecion mold slide design standards

2018-08-23T10:59:42+00:00

Spark is an injection mold slide manufacturer in China. Today I want to tell you some design standards of them. Mechanical Injection Mold Slide 1)      All shut-off surfaces must have a minimum of three degrees draft in direction of slide travel. Any shut-off angle less than three degrees must have written customer approval. 2)     Two angle pins will be required on any slide design that exceeds seven inches in length. Consider a center Slide Guide for all long slides. 3)     There must be a minimum of three degrees difference between the angle pin and back wedge. 4)     The back wedge surface of the slide must have a lamina bronze (preferred) or 0-1 steel wear plate to allow for adjustment and for maintenance of wear surfaces. 5)     The back wedge must be designed to resist injection pressure by backing up the entire molding surface. [...]

11 10, 2016

Tell you some about zinc die casting molding

2018-08-23T10:59:42+00:00

Zinc - The easiest alloy to cast, it offers high ductility, high impact strength and is easily plated. Zinc is economical to cast and has a low melting point and promotes long die life. Zinc die casting molding is popular among molds. A zinc alloy die casting molding made from SPARK #3 or #5, or a zinc-aluminum alloy casting made from ZA-8 is made in the same general manner as an aluminum die casting. Molten metal is injected into a casting die under high pressure and at a controlled temperature. The metal is rapidly cooled until the solidified part is sufficiently rigid to permit ejection from the mold. The mold has two sections, the "cover" half and the "ejector" half. The die may also have additional move able segments called slides or pulls, which are used to create features such as undercuts or holes, which [...]