â—† wet sand modeling method
Mount believes that clay wet sand molding is the most economical modeling method for most metal materials and mass production methods. The foundry is equipped with the latest technology control devices, which should be gradually implemented, and the wet sand control technology can repeatedly obtain the best performance. These control devices include, for example, sieving and separating metals, cooling of recycled sand, accurate release additives when reusing sand, and the like.
Vulcan believes that the current clay wet sand molding machine has excellent performance, can be manufactured at a speed never reached two years ago, and has strict manufacturing requirements and allows for a very small difference in wet sand type. Coupled with high efficiency and accurate control apparatus for sand, clay sand wet most important role in maintaining the shape iron-based alloys and non-ferrous alloys.
Macler Assoc believes that in the wet sand modeling, the vertical classification and the horizontal classification are compared. For the mass production of small and medium-sized, gray iron or ductile iron castings , the direct and straight type is dominant. Because of its relatively low equipment cost, high-speed modeling, less personnel required, and small deviation in compactness. However, the vertical parting process is limited in terms of gate scheme, Changkou and morphology, as well as the use of complex cores, filters, cold iron, casing, and cores. In addition, when casting with a fluidity alloy , since the metal static pressure is relatively high, it is easy to cause the metal to penetrate into the sand.
In the manufacture of non-ferrous alloy castings, a large-scale production of various types of alloy castings has been designed for various characteristics of vertical classification modeling methods, which are now being promoted. However, the casting has the required mechanical properties, before reaching a very high degree of mass production of this model law, as large quantities of production of aluminum alloy castings, metal casting method is still an advantage.
Macler Assoc believes that the horizontal type of wet sand casting method is one of the favorable modeling methods for medium and small batch casting factories, whether it is upper type, lower type or double-sided formwork, for the production of complex castings. Adaptability. The pattern can be changed in one cycle, and it can be effectively produced in a short time and long time. However, manual operation requires mechanization. In order to ensure the production of castings with excellent surface and high dimensional accuracy, the whole set of equipment needs to be modified. The choice of the warm sand modeling method needs to consider the following points:
â—† There must be a molding machine that can shape high-quality molds with uniform hardness. â—† The template can be changed quickly. â—†Mechanization of loading and unloading of the lower core and mold.
Macler Assoc said that in order to achieve a uniform shape, a variety of techniques have been adopted. There are several automatic double-sided formwork machines that use sandblasting and compaction. In this case, in order to achieve a uniform mold density, sandblasting and compaction, at this time, in order to achieve a uniform mold density, the direction of sand shooting If it is perpendicular to the board. There is also a top and bottom molding machine, in order to make the density of the mold uniform, micro-vibration and compaction are also adopted. In addition, in order to have a strong impact force when sand filling the pattern, high compression gas is also used. However, in order to obtain a uniform mold hardness, a variety of methods are employed, and one method cannot be solved for various modeling methods. In the selection of the molding machine, the foundry that is currently used should be investigated and tested with its own appearance to observe the results.
â—†Precision sand type
The main point of this modeling method is the chemical bonding mold using the cold box method. Vulcan think this is the resurrection of aluminum alloy block and cylinder head castings casting process. The reason for this is that the cylinder liner can be cast into the cylinder block, and at the same time, the advantage of using the cold iron for directional solidification can be used.
This method was developed in the 1970s for casting near-net shape castings and casting with wet sand for castings that require complex core shapes. Now, when casting accurate castings of complex shapes, the standard method is to use the cold box modeling method. Moreover, it is suitable for more alloys than sand casting . It can be seen in the core making operation that due to the innovation of resin chemistry and molding equipment, it is possible to cast quality at a lower price, higher liquid pump and robot automatic production line for parts , further improvement of equipment, reduced labor required, and production High quality, low cost castings. The cold box process molding machine is a major variant of the core making machine. Some type of the molding machine, while the lower mold molding, the molding machine can be made out of any stack mold casting cavity on both sides, a third variant is to use two sets of molding machine, the type is a group, a group of the type made .
In order to improve the precision, these molding machines minimize the flash of the parting line, and it is characterized by compacting the mold in the whole process. The large-scale molding machine is fully hydraulically driven for smooth and reliable operation. It is equipped with a robot to carry out operations such as coating type, drying, lower core, adhesive bonding and boxing. Thanks to these devices, the required labor is reduced and the highest quality and productivity are guaranteed. The shape of the mold of the cold box molding machine not only affects the surface quality of the casting and the cleaning operation, but also affects the correct assembly of the core and the position at which the core fluidizes the sand in the sanding head. Design is very important.
According to Macler Assoc, the cold box molding machine has several sand shooting techniques . Most of the molding machines, this type of molding machine, shoots sand with low pressure and high wind volume, and can shoot sand after each cycle. There are two or three machinery factories that do not fluidize the sand, but use the "extrusion method, using patented sandblasting, low-volume high-pressure sandblasting, and some mechanical factories believe that extrusion is used to make complex When the mold is used, the sand is also easy to flow. For these two techniques , it is best to use their own patterns for trial comparison and select the best method.
The cold box molding method can produce complex molds with very accurate dimensions, but the cost of the mold and the sand binder and catalyst are higher than the sand and adhesive for the wet sand type, and the shape of the cold box molding method The speed is low.
â—†Easy mold casting
Vulcan lost-foam casting has evolved due to improvements in equipment and materials, and the ratios used are expanding. Multi-directional filling work points, filling sand (subsequent sand), instant filling and other new technologies , the casting quality, molding speed and cost reduction.
The advantages of lost foam casting are as follows: the foaming mold can be used without a small degree of inclination or twist, and sometimes the twist can be used to shape the complex shape, and the design has freedom. In addition, the weight of the casting can be reduced, reduced or even no mechanical processing, and can be cast without using a core. Innovations in equipment, new developments in components, coatings, and filling media have led to an increase in the quality of castings and production efficiency, thus expanding the market.
Wooden Handle Corkscrew is for wine but it can also use as normal Beer Opener.
The handle is made of wood such as pakka wood, beech,rubber wood etc.
The wood handle looks more elegant and high quality.
And these kind of corksrew is suitable as a gift for a good taste wine.
The wood handle can be laser with custom logo then pack to a good gift box.
It is believed that it will attrative your custom not just for wine but also the corkscrew.