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            冷作模具鋼尺寸與制造公差有什么要求

            來源:http://www.environmentandpeople.net/ 日期:2022-08-27 發布人:guanli


            注意冷作模具鋼材料的合理公差和尺寸要求,能給模具制作帶來便利,提高經濟效率,減少制造時的廢品,無論何種材料塑件較高精度尺寸都是有要求的,那么冷作模具鋼尺寸與制造公差有什么要求呢?
            Pay attention to the reasonable tolerance and dimensional requirements of cold work die steel materials, which can bring convenience to die manufacturing, improve economic efficiency, and reduce waste products during manufacturing. No matter what materials and plastic parts have higher precision dimensions, what are the requirements for the dimension and manufacturing tolerance of cold work die steel?
            冷作模具鋼的尺寸:
            Dimensions of cold work die steel:
            根據塑料△VS值,將各種塑料的收縮特性分為4個組?!鱒S值小的組是高精度組,以此類推,△VS值大的組為低精度組。
            According to the △ vs value of plastics, the shrinkage characteristics of various plastics are divided into four groups. The group with small △ vs value is a high-precision group, and by analogy, the group with large △ vs value is a low-precision group.
            并按照基本尺寸編制了精密技術、110、120、130、140、150和160公差組。并規定,用收縮特性穩定的塑料成形塑件的尺寸公差可選用110、120和130組。
            And the precision technology, 110, 120, 130, 140, 150 and 160 tolerance groups are compiled according to the basic dimensions. It is also specified that 110, 120 and 130 groups can be selected for the dimensional tolerance of plastic parts formed with plastics with stable shrinkage characteristics.
            用收縮特性中等穩定的塑料成形塑件的尺寸公差選用120、130和140。如果用這類塑料成形塑件的尺寸公差選用110組時,即可能出大量尺寸超差塑件。用收縮特性較差的塑料成形塑件的尺寸公差選用130、140和150組。
            120, 130 and 140 are selected as the dimensional tolerances of plastic parts formed from plastics with moderate and stable shrinkage characteristics. If the dimensional tolerance of plastic parts formed with this kind of plastic is 110 groups, a large number of plastic parts with out of tolerance can be produced. The dimensional tolerance of plastic parts formed with plastic with poor shrinkage characteristics is 130, 140 and 150 groups.
            模具型腔和型芯的加工尺寸除了通過D=M(1+S)公式計算基本尺寸之外,還有一個加工公差的問題。按照慣例,模具的加工公差為塑件公差的1/3。但由於塑料收縮率范圍和穩定性各有差異,先必須合理化確定不同塑料所成形塑件的尺寸公差。即由收縮率范圍較大或收縮率穩定較差塑料成形塑件的尺寸公差應取得大一些。否則就可能出現大量尺寸超差的廢品。
            In addition to the basic dimensions calculated by D = m (1 + s) formula, there is also a problem of machining tolerance for the machining dimensions of mold cavity and core. According to the Convention, the machining tolerance of the mold is 1 / 3 of the tolerance of the plastic part. However, due to the differences in the shrinkage range and stability of plastics, it is necessary to rationalize the dimensional tolerance of plastic parts formed by different plastics. That is to say, the dimensional tolerance of plastic parts formed from plastics with large shrinkage range or poor shrinkage stability should be larger. Otherwise, a large number of waste products with out of tolerance may occur.
            冷作模具鋼
            冷作模具鋼的制造公差:
            Manufacturing tolerance of cold work die steel:
            德國國家標準針對塑件公差制訂了相應模具制造公差的標準DIN16749。該共設4種公差。不論何種材料的塑件,其中不注明尺寸公差尺寸的模具制造公差均使用序號1的公差。
            The German national standard has formulated the corresponding die manufacturing tolerance standard din16749 for the tolerance of plastic parts. There are 4 kinds of tolerances. For plastic parts of any material, the tolerance of No. 1 shall be used for the manufacturing tolerance of the mold without dimension tolerance.
            具體公差值由基本尺寸范圍確定。不論何種材料塑件中等精度尺寸的模具制造公差為序號2的公差。不論何種材料塑件較高精度尺寸的模具制造公差為序號3的公差。精密技術相應的模具制造公差為序號4的公差。
            The specific tolerance value is determined by the basic dimension range. The mold manufacturing tolerance of medium precision dimension of plastic parts of any material is the tolerance of No. 2. No matter what kind of material, the mold manufacturing tolerance of the higher precision dimension of the plastic part is the tolerance of No. 3. The die manufacturing tolerance corresponding to precision technology is the tolerance of No. 4.
            綜上所述,冷作模具鋼尺寸與制造公差是由基本尺寸范圍確定,合理的確定各種冷作模具鋼材料的尺寸與制造公差是非常重要的。以上就是關于冷作模具鋼的內容,相信大家已有所了解,更多相關內容關注我們網站http://www.environmentandpeople.net!
            To sum up, the dimension and manufacturing tolerance of cold work die steel are determined by the basic dimension range. It is very important to reasonably determine the dimension and manufacturing tolerance of various cold work die steel materials. The above is about the content of cold work die steel. I believe you have already understood it. For more related content, please follow our website http://www.environmentandpeople.net !

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