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沖壓模具在滲碳經常見的問題是什么,如何處理?

刮刮乐2000 www.yfrmbf.com.cn 來源:    發布時間:2019-10-09 18:28:52    點擊:

  沖壓模具滲碳是模具加工中的重要工序之一,也是沖壓模具必須加工的工序,但沖壓模具滲碳后的工序很容易出現一些缺陷,導致模具加工完成后會出現一些缺陷。沖壓模具滲碳過程中存在五種常見缺陷。
  Carburizing of stamping die is one of the important processes in die processing, and it is also the process that stamping die must be processed. However, the process after carburizing of stamping die is prone to some defects, resulting in some defects after the completion of die processing. There are five common defects in carburizing process of stamping die.
  1. 低硬度
  1. Low hardness
  濟南新豐奧氏體內容提示的原因之一是沖壓模具硬度低,滲碳層的殘留奧氏體含量經常因為高溫滲碳表面碳濃度過高,沖壓模具硬度低的另一個原因是表面碳濃度很低,的原因是表面碳濃度很低,滲碳溫度過低;低滲碳氣體流量;真空淬火油吸收大量空氣;其他油,如汽缸油,大量混入真空淬火油介質中。
  One of the reasons indicated by the content of austenite in Xinfeng, Jinan is that the hardness of stamping die is low, and the residual austenite content in carburized layer is often due to the high carbon concentration on the surface of high temperature carburizing, and the other reason is that the surface carbon concentration is very low, the carburizing temperature is too low; the flow rate of low carburizing gas is low; the vacuum quenching oil absorbs a lot of air; other oil, such as cylinder oil A large amount of vacuum quenching oil is mixed into the medium.
  二是滲碳層深度達不到技術要求
山東模具
  Second, the depth of carburized layer can not meet the technical requirements.
  沖壓模滲碳層深度超標的原因是滲碳溫度高或滲碳時間長。深度低于技術要求的原因是滲碳溫度低或滲碳時間短。
  The reason why the depth of carburized layer of stamping die exceeds the standard is that the carburizing temperature is high or the carburizing time is long. The reason why the depth is lower than the technical requirement is that the carburizing temperature is low or the carburizing time is short.
  三、沖壓模具本身滲碳層不均勻
  3. Non-uniform Carburizing Layer of Stamping Die造成這種情況的原因可能是:滲碳氣體與空氣混合;無脈沖滲碳;滲碳氣體壓力過低;爐料過多,填充過密;滲碳氣體純度低,產生較多炭黑等。
  The reasons may be: mixed carburizing gas with air; no pulse carburizing; too low pressure of carburizing gas; too much burden and too dense filling; low purity of carburizing gas and more carbon black.
  四、碳黑、燙金模也附在碳黑上
  4. Carbon black and bronzing die are also attached to carbon black.
  當滲碳過程中產生大量炭黑時,可能會造成加熱器與爐體之間、加熱器與加熱器之間的電短路,增加設備的維護工作量。使沖孔??啄詼氯?,滲碳層不均勻,增加了去除炭黑表面零件的工作。
  When a large amount of carbon black is produced in the carburizing process, it may cause short circuit between heater and furnace body, between heater and heater, and increase the maintenance workload of equipment. The plugging in the hole of punching die and the uneven carburizing layer increase the work of removing carbon black surface parts.
  沖壓模的亮度下降
  Brightness Decrease of Stamping Die
  沖壓模具在真空滲碳和風冷后應呈銀白色,如出料部位的亮度劣化,原因可能是:爐體產生了較大的漏電;真空淬火油中混入較多的空氣;冷卻氣體(如氮氣)純度低,含氧量高。較多的油缸混入真空淬火油介質中。
  Stamping dies should be silver-white after vacuum carburizing and air cooling. For example, the brightness of discharging parts deteriorates. The reasons may be: the furnace body produces a larger leakage; more air is mixed in vacuum quenching oil; the purity of cooling gas (such as nitrogen) is low and oxygen content is high. More cylinders are mixed with vacuum quenching oil.
  以上是刮刮乐2000公司為大家介紹的相關內容,本文來源://www.yfrmbf.com.cnThe above is the related content introduced by Shandong Mould Company. The source of this article is //www.yfrmbf.com.cn.
 
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