Introduction to the Hot Pitch Circle Method in Stainless Steel Parts Manufacturing: The hot pitch circle can reflect the cooling speed of the casting. The larger the hot pitch circle, the slower the cooling; the smaller the hot pitch circle, the faster the cooling. This is similar to how the modulus value can reflect the cooling rate of the casting. The modulus method is used to calculate risers by enlarging the modulus of the area being compensated1.2times(Exceptions to special circumstances)As the basis for choosing risers. Enlarge the modulus to make the riser solidify later than the patched area. The hot joint circle method for calculating the riser also utilizes the diameter of the hot joint circle at the compensated area. Based on experience, it is enlarged in a certain proportion to obtain the desired diameter of the cylindrical riser or the width of the circumferential riser. The greatest advantage of the hot joint circle method in calculating risers is that the calculation process is simple, unlike that of the modular method which is troublesome. Therefore, it is currently widely used in factories. Its drawback is that determining the ratio of the riser to the hot joint circle requires certain practical experience. Otherwise, due to improper acquisition of the ratio, the deviation of the riser will be very large. Therefore, after calculating the riser using this method, the process yield rate still needs to be used to verify and correct the size of the riser. This method of determining the size of the riser is called the "hot joint circle method", also known as the "proportion method".
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