Our factory is established in 1984, We are specialised in design, manufacturing, sale and service of equipment and complete plants for the icecream machines.    Our products covers icecream freezers with different capacities and accessories, stick icecream machines, sandwich icecream machines, icecream filling machines,fruit mixing machines and more. We can customize full ice cream production line for customers.    Our factory is located in Ningbo China and distant from Shanghai in 3 hours by car.

Through this process of production of steel pipe weld fusion center will appear as a white line on both sides of the heat affected zone will produce fusion line extending from the middle toward the surface and the inner and outer metal flow lines. Since ERW steel pipe is used as the base material using welding materials, so its properties of the weld and base metal properties have a greater relationship. Figure 1 is a common material with high toughness material, weld and base metal ductile-brittle transition temperature curve. In ordinary materials, Charpy impact test weld and base metal absorbs very little difference in the energy value. In contrast there are large differences between high toughness material, weld toughness significantly inferior to the base metal, but much better than ordinary weld material. ERW welded steel pipe weld toughness can be ice cream mix plant seen in the general case is below the center of the base metal toughness, even with high toughness materials, although the toughness of the weld is improved, but not a radical improvement in the impact toughness of weld center. 

Impact properties affected by changes in the chemical composition, the use of two different chemical composition of the material were made after Charpy impact test pipe. In order to exclude the impact of process pipe on the test results, all samples were carried normalizing. ERW steel pipe welding process, due to the mechanical pressing action, in both sides of the weld heat affected zone generated by the extension of the surface direction of the central inner and outer sheet metal flow line, the direction of the metal flow lines substantially near the center of the weld fusion line parallel to and coincident with the fusion line. Metal flow lines are banded and inclusion of hot-rolled steel plate extending along the rolling direction, the thickness of the metal flow lines and raw grain size and the degree of non-metallic inclusions much about. The larger grain size of the raw materials or more non-metallic inclusions, the thicker the metal flow lines more obvious. When the non-metallic inclusions and showed a more uneven distribution, the base metal segregation serious. When high-frequency welding, the pressing force in the action of the squeeze roll, a large number of non-metallic inclusions in the segregation band will enter the metal flow along the welding line to the fusion zone, the hot acid from the sample may fold lower apparent segregation lines an angle at the intersection of the weld line. In this case, it will seriously reduce the impact toughness of the weld, so that the impact absorbed energy is greatly reduced. Therefore, in coils of raw materials smelting, rolling stage should take measures to reduce inclusions and grain refinement process in pipe flow lines should also rise angle metal reasonable control. 

Metal flow lines of the weld and heat affected zone can be eliminated by heat treatment method. Welding is under the same conditions, the impact of heat treatment and after heat treatment without the sample weld toughness two differences, two samples were taken, a heat treatment, the metal flow lines disappeared, another group without heat treatment, there is a significant flow of metal. One important factor is water-cooled heat treatment conditions on the starting temperature. Pipe weld heat after heat treatment, to go through a long distance air-cooled, air-cooled section in order to shorten the distance and prevent pipe deformation after sizing, sizing prior to entering the water-cooled steel pipe. If the water cooling initiation temperature is too high, bainite is generated, thereby reducing the impact toughness of the weld. As can be seen from the figure the water cooling initiation temperature should be controlled below 400  appropriate.

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Our factory is established in 1984, We are specialised in design, manufacturing, sale and service of equipment and complete plants for the icecream machines.    Our products covers icecream freezers with different capacities and accessories, stick icecream machines, sandwich icecream machines, icecream filling machines,fruit mixing machines and more. We can customize full ice cream production line for customers.    Our factory is located in Ningbo China and distant from Shanghai in 3 hours by car.

The FellowesQuasar 500 is a full featured manual plastic comb binding machinedesigned for small and medium offices that are looking to do plasticcomb binding. The Quasar 500 offers the same contemporary and ergonomicdesign found in other Fellowes comb binding machines such as theStarlet and the Star. However, this machine includes features that aresimply not available in those less expensive models. This machine is designed for use with both round and ovalshaped plastic comb binding spines and can bind documents up to twoinches thick (approximately 500 sheets of 20lb paper).  Strengths / Features:    TheQuasar 500 has contemporary design that sets it apart from many otherplastic comb binding machines on the market. The machines folds closedwhen it is not in operation. The dark grey and silver colored plastichousing provides an elegant and contemporary look that is designed toblend in with other pieces of office equipment. Plus, the machineoffers an ergonomic handle that is easy to use by operators who areboth left and right handed. Unlike the Fellowes Star and Starlett which only punch 7sheets of paper at a time, the Quasar 500 is designed to punch up to 20sheets per lift. Even the largest and most powerful manual plastic combbinding machines are only rated for between 20-25 sheets of paper at atime.

The Quasar is capable of binding documents with plasticcombs as small as 1/4 inch and as large as two inches. It includes aheavy duty plastic comb opener with metal fingers and metal hooks. Thesystem can open both round combs (1/4 inch - 1-1/8 inch) and oval combs(1-1/4 inch - 2 inch). This machine has a storage tray that slides out of theside of the machine. The storage tray will hold a selection of bindingcombs and has a plastic comb size selector.

The selector allows you todetermine the correct size of comb for use with your document and italso allows you to determine the size of any comb that you have onhand.  Weaknesses / Limitations:    Althoughthis binding machine can be used with virtually any size of plasticbinding comb, it is not designed to bind documents that are shorter orlonger than 11 inches in length. It doesn't have disengageable pins oran open throat design. Without any open throat it is impossible topunch documents longer than 11.25" (oversized covers). Withoutdisengageable punching pins, documents less than 11 inches in lengthwill most likely end up with a partial hole on the edge of the Ingredient feeder page. Although the slide out storage tray seems like a goodidea, it is not large enough to hold any real quantity of bindingcombs. The document measuring device is nice, however, this machinewould benefit from having a larger chip tray instead of built in combstorage. Although this machine has an excellent punching capacityand is capable of binding documents up to 2 inches thick, it is stillmade primarily out of plastic. Although this machine looks great, itmight not be the best choice for heavy duty users or for applicationswhere the machine may be abused (such as schools). These environmentswill most likely benefit from a machine made from metal components.  

Recommendation:    TheFellowes Galaxy 500 is an excellent choice for users who are lookingfor a contemporary binding machine that will fit in a small office ormedium office environment. It has an excellent punch capacity, an ergonomic design and can bind documents that are up to two inches thick.    However, this machine is not an excellent fit for highvolume users or for applications where multiple users may abuse themachine. In those cases it may be best to sacrifice style and settlefor an all metal machine such as the Tamerica 210PB.

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