World News CNW

Because of their combination of properties, castability and cost effectiveness, gray and ductile iron are the dominant metals (based on weight) produced in metalcasting facilities today. When sourcing, designing and purchasing ductile and gray iron castings, a number of variables must be considered when choosing between the two. This comparison of gray and ductile iron will help designers and purchasers decide which alloy is suitable for a specific cast component. Gray iron is the preferred material when seeking low-cost, complex geometries with strength and high density. Gray iron can be used for a wide range of applications, from table legs and bases to large fountains and building facades. Gray iron is particularly good for applications in which vibration damping is required, such as engine blocks and frames for manufacturing equipment. For higher strength applications, ductile iron can be used. Ductile iron, because of its strength and ductility, often is specified in severe applic

Everyone has used corrugated boxes. But have you ever wondered how they are made? Does it need to be folded by hand or can it be done simply using a  carton forming machine ? You should know that corrugated boxes are made from trees. Below we will discuss the box manufacturing process step by step. Steps in Box Manufacturing 1. The tree While we ideally look for recycled cardboard for box production, at some point, a cardboard box begins life in the form of a tree. Typically, the trees used for box manufacturing are cork trees such as pine and fir. They are chosen because they have long fibers that help create a smooth surface for the cardboard and create the tension that adds strength. Many manufacturers will choose wood from sustainable and managed woodlands; this means that any trees that are cut down will be replaced to help maintain the ecosystem of the forest. Depending on the tree used, the paper and board created will have different colors. For example, silver birch will produc

Although printing on  cosmetics containers  and packages looks the same at first glance, there are actually various printing methods.   The following items are explained here. ● Silkscreen printing ● Pad printing ● Offset printing ● Hot-dry printing ● UV printing ● Inkjet printing ● Coating ● Vapor Deposition  ● Hot stamp printing ● Shrink  ● In-mold printing ● Adhesive labels *The methods employed differ depending on the container (material) manufacturer, finish, quality, etc.     1. Silkscreen printing (silk printing) A technique for printing by using a silkscreen made of nylon, Tetoron, or other synthetic fiber (silk used in the past) attached to a frame, filling the mesh of the silk with emulsion in areas not to be printed, and rubbing the paint with a squeegee while applying pressure. The printing process is repeated by printing one color and drying, and a printing plate for the number of colors is required. *Color compositing is not possible. The printed ink layer is thicker and

    Different terms used for  arresters  are sometimes confusing even professional engineers and electricians use them interchangeably. Now let’s discuss all these arresters in details.   Table of Contents   What is a Surge Arrester? What is a Lightning Arrester? Main Differences between Surge Arrester and Lightning Arrester Should You Use Surge Arresters or Lightning Arresters?   Surge Arrester   1. The  surge arrester  will be installed nearer to the equipment to be protected and the transmission tower line enter in to the substation point. 2. It protects against high voltage transient (example: lightning strike on the transmission conductor) typically, it is indirect protection of lightning strikes. 3. It should be installed each phase of the circuit. i.e if you have 2 parallel switch yard then you should install 6 number of surge arrester (first run 3 phase and second run 3 phase) . Lightning arresters   1. The lighting arrester is doing the exact duty of surge arrester from outsid

What is a powder filling machine? Powder filling machines  are essential when filling a wide variety of free-flowing and non-free-flowing powder or granular products. Powder products that are not sticky, such as granulated sugar or table salt, are defined as free-flowing. They don't compress easily when extra pressure is applied, and they don't hold their shape even when manipulated. In contrast, non-free-flowing powdered products, such as milk powder and brown sugar, can be compressed and retain their shape when handled. There are many  types of powder filling machines , depending on the machine design and configuration for the level of automation for quantitative or volumetric filling. Some fillers can only handle free-flowing or non-free-flowing powders, but some cannot handle both. In addition, powder filling machines fill powder products into different types of packaging, including: Bags, Bag-in-boxes, Cans, Jars, Vials, Bottles... Advantages of powder filling machines If

  What is monk fruit?   Monk fruit is a small, round fruit native to southern China. Monk fruit sweetener comes from the mogroside, which is the sweetest part of the fruit.Monk fruit extract, also called luo han guo fruit extract, is a recent addition to the sugar alternative market in the United States. Unlike some chemically based sugar alternatives, monk fruit extract is considered natural.   Monk Fruit Sweetener pros: A monk fruit sweetener has several benefits when compared with sugar:   1.Zero calories. Monk fruit extract contains no calories, which is helpful for people on diets that restrict a person’s caloric intake.   2.Zero carbohydrates. The extract also contains no carbohydrates, which may make it ideal for people on low-carb or keto diets.   3.Zero sugar. There is no sugar in pure monk fruit extract, which means that consuming it will not affect blood sugar levels.   4.No harmful side effects. The U.S. Food and Drug Administration (FDA)Trusted Source considers monk fruit

The limits of height you can build a gabion rock retaining is really only limited to your needs.   Gabion baskets  can be used to divide or step gardens by as little as 300mm or can be used to build a side of a house. It all comes down to stability and above a certain height, engineering approval. Find out more detail on considerations of how high you can build a retaining wall here.   Here are 4 common approaches to think about when determining the height of your rock retaining wall: 1. Add additional baskets to increase the depth of the wall.   This increases the surface area of the base of the wall on the ground which reduces the opportunity for the wall to sway or collapse. The recommended ratio is 2 baskets high to every 1 basket deep. Gabion Basket 2. Install support posts.  Support posts help add stability to your wall to also reduce the risk of collapse. They need to be strong enough to properly support the gabions and should be secured in a concrete slab underneath the basket