As " COVID-19- Coronavirus Pandemic" continues to spread all over the whole world, we preotect our enmplyees and your helth with the following actions. We continue to operate our facilities while supplying plastic injection molds and die casting molds as usual since our molds are widely used in several critical industrial applications in various economies. Out of urgent cases, no visitors are accepted to our factories so far and employee recruitments are stopped. Unless extreme necessity, customer visits are not taking place. An intense support is given by e-mail and phone for our customers. Employees over 60 years old, ones having chronic diseases or signs of illnesses are given administrative permission. We have provided the opportunity to work from home to all our staff who can do their work remotely. Currently we can work in factory but it's mandatory to wear masks. We measure body temerature of all employees and visitors at the entrances and ensure that those who is above 37.5 degrees are transfterred to the nearest health instituation. We disinfected the common areas of our employees with nano- technological disinfectants and continue to clean with secial equipment very evening. We distribute masks and gloves to our employees for use within the factories and shuttle services.

Building high quality plastic injection molds need high level plastic injection mold design, that's why we need to find out which key points are so important while checking plastic injection mold design, firstly we should check whether plastic thickness is even, if not uniform, it will cause shrinkage and affect the appearance. Mold opening direction Determine parting surface and draft angle 1. Select the maximum value of projection of parting surface in direction of mold opening as simple as possible 2. Penetration position: try to choose the rear mold, if you want to touch the front mold, it is easy to walk, affect the appearance, and use flat contact. 3. Pillow position: Pillow 5-8 mm, and then level with the large parting surface, pull the glue part 3 degrees, pull 3 degrees behind or avoid the air. 4. Insertion position: use the side to work, pull out 3 degrees, usually as an insert. Drafting principle 1: Draft in the direction of reducing glue. 2: The largest end of the shaft is the product size, and the smalle

So what`s making inserts on plastic molds? Insert in plastic injection mold refers specifically to mold components used for inlaying in plastic injection mold core block. Inserts can be square, round, sheet, and the same as all mold accessories, precision requirement is also very high, inserts can be made according to mold design construction. Types for inserts are insert pin, insert block, insert boss, inserts ring different types. Inserts material can be SKD61, SKH51, ASP23, SKD11 and so on or the same as mold core material. Insert material hardness must be more than 50HRC. Standard precision: ±0.01mm. When do inserts need to be made? 1, Saving mold material

How to choose die casting machine tonnage? In initial stage of quoting a die casting product and when we design die casting molds, all refers to consideration of die casting machine tonnage, the following three steps must be applied: ,Verify clamping force a. Total projected area A=Die casting projected area A1+Runner area A2(0.15~0.3A1)+ Overflow system A3(0.1~0.2A1)+ Material handle area A4(3.14xdxd d is material room diameter, also as punching head diameter) b. Swelling Force F1=Total projected area Ax Injection pressure (MPa) Injection pressure is the pressure force per area, according to experience: Conventional die casting product is 30~50, bearing die casting product is 50~80 Air resistance die casting product 80~100. c. Clamping Force F2=Swelling Force F1/K K is Safety Index:0.85 , Verify filling a. Total we

How to make parting line for plastic injection molds? We have been dedicated plastic injection molds design and manufacturing for many years and we have rich experience to summarize the following critical principles to be considered during plastic injection molds design works. 01-Clamping force consideration Lateral clamping force is small, regarding big plastic components which has large projected area, the direction with large projected area should be placed on direction of opening and closing of the front plastic mold block half and the rear plastic mold block half, while the direction with small projected area should be as lateral parting. 02-Comply with plastic injection mold demolding Parting surface is for demolding to be successful for plastic components. Therefore, position of parting surface should be chosen on part where the biggest section size of plastic products, which is the basic principle. 03-The shape of parting surface

Plastic Injection Mold Design For Laptop Fan Here refers to a Laptop Plastic Fan Housing Plastic Injection mold and molding product Dimension is 80.0mm x 80.0mm x 20.0mm, plastic material is ABS, shrinkage rate is 1.005, product weight is 21.9g, wall thickness of the whole product is not even , the thinnest area in the middle is 1.2mm, the thickest area in the edge is 2.2mm. According to usage of this product, all kinds of defects are not allowed. Ceeto company has many years in designing and building plastic injection molds, products refers to thin-wall plastic containers, plastic crate box injection mold, plastic pallet molds, plastic pot molds, plastic flower pot molds and so on. Therefore, regarding plastic fan injection mold, much attention must be paid to design and manufacture this kind of plastic injection molds. In addition to dimensional tolerance, there are geometric toleranc

Figure 19-2 shows an exploded view of the elements of a typical two-plate injection mold. A brief description of each element as follows: 1. Return pin- returns the ejector plate back to its original position when the mold is closed 2. Ejector pin- pushes part off the core or out the the cavity 3. Sprue puller pin- pulls sprue out of the bushing when the mold opens by means of an undercut ( not shown ) 4. Ejector retainer plate- plate in which the ejector pins are held.

Considerations for Selecting Medical Grade Plastic Materials for Disposable Syringe and Medical Heartsave Pad Defibrillator. There are several grades of plastic available for medical device injection molding and medical device prototype development. Each material carries unique properties that determine how it will perform in its intended application and operating environment. Considerations for selecting the right medical grade plastic material for your application include: Strength: Plastic resins provide varying levels of strength, so it is important to make sure the medical grade plastic material you select provides the strength properties required your application according to technical requirements for Disposable Syringe and Medical Heartsave Pad Defibrillator. FDA Requirements: Medical devices that are being implanted have different requirements than those being used for tubing, medical instruments, and other external uses. Review the FDA requirements for your application prior to selecting a material. Resistance to Chemicals and Heat: Chemical and heat resistance are two critical considerations when selecting a medical grade plastic material, especially if your finished components must be able to withstand sterilization via autoclave, gamma ray or chemical methods. Operating environment: Operating conditions determine requirements for strength, temperature resistance, chemical resistance, corrosion resistance, exposure to radiation, and other factors. Make sure the medical grade plastic material you select can withstand the conditions of your operating environment. Molding Method: Medical injection molding and medical insert molding are two methods commonly used for medical device prototype development but not all plastic materials are compatible with both methods. It is important to determine which method you will be using before selecting a medical grade plastic material. Ceeto company has the knowledge and expertise to help ensure the righ

This refers to Plastic Crate Injection Mould Ejection System, all thermoplastic materials contract as they solidify, which means that the molding will shrink on to the core which forms it. The ejector grid is that part of the crate injection mould which supports the mould plate and provides a space into which the ejector plate assembly can be fitted and operated. The grid normally consists of a back plate ( clamp plate ) on to which is mounted a number of conveniently shaped " support blocks ". There are three alternative designs: 1, The in-line ejector grid 2, The frame-type ejector grid 3, The circular support block gird In-line ejector grid: This consisits of two rectangular support blocks mounted on a back plate. The ejector plate assembly, shown in chain-dotted lines, is accommodated in the parallel space between the two support blocks. The position of the mould plate is also indicated in c

It's plastic crate mould designer's responsibility to provide an adequate circulating system within the mould, and this section covers some fo the diffierent ways this can be achieved. In general, the simplest systems are those in which holes are bored longitudinally through the mould plates. However, this is not necessarily the most efficient method for a plastic crate mould. When using drillings for the circulation of the coolant, however, these must not be positioned too close to the impression ( say closer than 16mm), this is likely to cuse a marked temperature variation across the impression, the layout of a circuit is often compliated by the fact that flow ways may not be drilled too close to any other hole in the same mould plate. It will be called that mould plate has a large number of holes or recesses, guide pillars, guide bushes, sruce bush, inserts, etc.

One fundamental principle of home appliance injection moulding is that hot material enters the mould, where it cools rapidly to a temperature at which it solidifies sufficiently to retain the shape of the impression. The temperature of the mould is therefore important as it governs a portion of the overall moulding cycle. While the melt flows more freely in a hot mould, a greater cooling period is required before the solidified moulding can be ejected. Alternatively, where the melt solidifies quickly in a cold mould it may not reach the extremities of the impression. A compromise between the two extremes must therefore be accepted to obtain the optimum moulding cycle. The operating temperature for a home appliance mould will depend on a number of factors which include the following: type and grade of material to be moulded, the length of flow within the impression, wall section of the moulding, length of the feed syste, etc. it is often found advantageous to use a slightly higher temperature than is reuqired just to fill the impression, as this tends to improve the surface finish of the moulding by minimizing weld lines, flow marks and other blemishes. To maintain the required temperature differential between the mould and the plastic matereial, water is circulated through holes or channels within the mould. These holes or channels are termed flow ways or water ways and the complete system of flow ways is termed the circuit. However, it's not always practicable to adopt the idealized approach and the mould designer must use a fair amount of common sense when laying out coolant circuits if unnecessarily expensive moulds are to be avoided, Zhejiang Ceeto Molding company has a number of professional mould designers who are capable of doing great design jobs and save money for you on the mould.

Stainless steel stamping and drawing becomes deep drawing when car stainless steel fuel tank is drawing longer than its diameter, it's common that the stainless steel fuel tank is also processed using other forming processes, such as piercing, ironing, necking, rolling and beading. The success of forming is in relation to two things, the flow and strech of material. As a die forms a shape from a flat sheet of material, there is a need for the material to move into the shape of the die. The flow of material is controlled through pressure applied to the blank and lubrication applied to the die or the blank. If the form moves too easily, wrinkles will occur in the fuel tank part. To correct this, more prssure or less lubrication is applied to the blank to limit the flow of material and cause the material to stretch or thin. If too much pressure is applied, the part will become too thin and break. Drawing stainless steel fuel tank can be the science of finding the correct balance between wrinkles and breaking to achieve a successful part.

Metal ( Stainless Steel ) Stamping includes a variety of sheet-metal forming manufacturing processes, such as punching using a machine press or stamping press, blanking, embossing, bending, flanging and coining. This could be a single stage operation where every stroke of the press produce the desired form on the sheet metal part, or could occur through a series of stages. The process is usually carried out on sheet metal including stinless steel sheet material, here mainly refers to stainless steel material. Blanking and piercing are shearing processes in which a punch and die are used. The tooling and process are the same between the two, only the terminology is different: in blanking the punched out piece is used and called a blank; in piercing the punched out piece is scrap. For example, automotive stainless steel fuel tank product making process will be needed this process as well. Bending is a manufacturing process that produces a V-shape, U-shape, or channel shape along a straight axis in ductile materials, most commonly sheet metal. Commonly used equipment include box and pan brakes, brake presses, and other specialized machine presses. Typical products that are made like this are boxes such as electrical enclosures and rectangular ductwork.

We, Zhejiang Ceeto Molding Technology Co.,Ltd. has invested over 1 million USD on Hydraulic Press machines and other cutting machines etc. to be used to make stainless steel stamping moulds and products, Ceeto company absorb a group of technical engineers who are very professional in design and manufacturing Deep drawing dies.

Die casting is a metal casting process that is characterized by forcing molten metal under high pressure into a mold cavity. The mold cavity is created using two hardened tool steel dies which have been machined into shape and work similarly to an injection mold during the process. Most die castings are made from non-ferrous metals, specifically zinc, copper, aluminium,

This is basically a bulging process. A tubular piece of plastic is heated and then pressurized internally and expanded into the caivty of a relatively cool split mold. Typical products are hollow, thin-walled containers or articles. An example of an automated process is extrusion blow molding. Here a hollow tube of molten plastic is produced by an injection machine and is then pinched at one end. The parison is then placed into the open mold, the mold is closed, and the parison is expanded with an air nozzle to a diameter that is usually three time the parison diameter. The air pressure is usually between 50 and 100 psi. The part cools off after contact with the die, which is then opened and the part is ejected. Molds are usually made of aluminum and are vented to prevent entrapment of air. Typical products made by blow molding are containers for fluid and solid food, medicine, or other products, laboratory ware, toys, and storage tanks for liquids, containers as large as 3 m3 capacity have been blow molded.

When mold finish machining, fitting parting line and final assembly, it steps into tryout procedure. To a new mold, the first mold tryout is very important. By means of a complete tryout procedure, we can evaluate if the mold function works well including injection system, ejection system and side cores system and so on. During tryout, the plastic parts are samples, With proper injection parameters, we can evaluate the quality of samples and mold. After tryout, we summarize a correction list in order to obtain good parts evetually and satisfied by customer. Mold tryout list is aimed at checking mold and samples in details and documented as a report as customer request. It includes the checking list of mold and that of sample. Here, we only list some of checking items in common use. Check list of mold is followed: 1- Is the mold clean? 2- Is the mold faces free from corrosion? 3- Are mold dimensions correct as designed? Record the actual dimensions. 4- Is material of mold component correct as designed? 5- Is hardness of mold component correct as designed? 6- Does ejection system move full stroke at injection and ejection directions? 7- Is the ejection pressure without part OK as customer request? 8- is the ejection pressure with part OK as customer request? 9- Does ejection have noise when moving? 10- Does lifter have anti-rotation? 11- Is lifter shaft rod in good location and guidance? 12- Does parting line fitting

Zhejiang Ceeto Molding Technology Co., Ltd. has a group of professional engineers who are rich of design and manufacturing plastic injection moulds for the follow fields, it refers to the following: Home Appliance Industry Automotive Industry Household Storage & Waste Cans Pallets/Returnable Packing Industrial & Industrial Containers gricultural Lawn/Garden Home Building Products Pet Products Medical/Displays Electrical & Electronics Telecommunications Food Services Consumer Products

Preliminary designs (or pre-design) must include the followings: mold number and overrall mold nase size ( Length, Wideth and Height ), view of cavity and core side, longitudinal cross section, steel material type, ejection stroke, tie bars of intended injection machine, top of mold, operator side, part orientation, de-moulding direction, runner and gate location, parting line plane, lifter, sliders, guide pins. Press platen swing study must also be included in preliminary stage. 1- Level of part data for mold design is the latest? Show change index of part in the drawings. 2- Is correct shrinkage used? Show the shrinkage in the drawings. 3- Title blocks to show mold number,injection machine tonnage, shrinkage, part name, part number, raw material, wall thickness, supplier information . 4- Are they any de-moulding concerns that require part concessions? If yes, part de-moulding analysis is required with clear problems explanation and sent to customer for next negotiation 5- Establish mold concept including steel sizes, parting lines, slides, lifters and mechanisms-plan view and sections. 6- Does customer request that mold is designed to run automatically? Yes or No. 7- Locating ring dimensions 8- Cold sprue, hot sprue, or manifold in all views and sections with detail dimensions 9- Show tie bars in view of core side, information of tie bars is provided by customer 10- Show eyebolt holes in all views and sections and ensure that correct size is used for w