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齒輪表面的噴丸強化技術的應用

發布時間:2020.09.11    點擊數: 2785
1.提高滲碳齒輪表面硬度
       例1:一汽熱處理分廠噴丸設備采用德國產TR5SVR—1型應力噴丸設備。噴丸工藝為:采用直徑為¢0.8mm鋼丸,噴丸時間9min,噴丸速度為2800r/min。齒輪材料為22CrMoH鋼,經滲碳淬火及回火處理。噴丸強化處理后齒輪表層組織得到了細化,表層的殘留奧氏體含量比未經噴丸處理工件的殘留奧氏體含量要低10%左右,在距離表面0.15mm范圍內,變化量比較明顯;經強化噴丸處理后的齒輪表面硬度提高了0.5~2HRC。
 
2.提高齒輪表面殘余壓應力并改善表層顯微組織
       例2:桑塔納轎車變速器二檔從動齒輪,經滲碳淬火、回火處理。噴丸采用葉輪式噴丸機,噴丸速度2900r/min,彈丸硬度57HRC。其噴丸試驗結果如下。
 
(1)噴丸件表層顯微硬度明顯提高,這是受到高的殘余壓應力、加工硬化和組織變化(細化)綜合作用的結果,其中殘留奧氏體的顯著減少對硬度提高也做出了貢獻。
 
(2)由于噴丸使工件表層中的殘留奧氏體變為馬氏體,可用來提高表面硬度。馬氏體針明顯較未噴丸件細小致密,起到了細化馬氏體亞結構的作用。有利于殘余應力的提高,從而提高了齒輪的疲勞性能。
 
3.提高齒輪的疲勞壽命
      例3:一汽采用強化噴丸工藝對“解放”牌汽車變速器一擋齒輪進行疲勞壽命試驗,顯著提高了齒輪的疲勞壽命。如表1所示。為了提高“解放”牌主動螺旋齒輪的疲勞壽命采用大圓弧滾刀切齒,增大齒輪圓角可以使主動螺旋齒輪的壽命由20.83萬次提高到69.54萬次,如果再采用強化噴丸,可以使其疲勞壽命提高到210.9萬次。
      例4:齒輪采用碳氮共滲后噴丸硬化提高接觸疲勞強度。如SCM420H鋼齒輪,經通氨氣等進行碳氮共滲,隨著含氮量的增加,ΔHV(硬度降)提高,即抗回火性能提高,回火溫度可達300℃。解決了汽車用自動變速器AIT常規滲碳齒輪齒面接觸疲勞破壞問題。
        關于良時智能 About Liangshi IntelRobot:
        上海良時智能科技股份有限公司(股票代碼:837430 厚積薄發 持續創新),為全球客戶提供表面處理系統解決方案,從業20多年,是一個集研發、設計、制造、工程安裝、工程咨詢于一體的專業化制造及自動化智能控制系統集成公司,能為客戶解決:
        Shanghai Liangshi IntelRobot Technology Corporation (Stock Code: 837430 Accumulate richly and break forth vastly; innovate continuously) provides surface treatment sandblasting system solution for global customers. By engaging in this industry for more than twenty years, we're a professional manufacturing and automatic intelligent control system corporation, which integrates researching, designing, manufacturing, project installation and project consulting. We can provide our customers with:
        1、表面處理噴拋丸、噴丸強化設備、熱噴涂和涂裝設備工藝系統解決方案和工藝裝備;
              We provide process system solution and process equipments of surface treatment sandblasting shot blasting, shot peening, enameling, thermal spraying, coating equipment.
        2、自動化和機器人應用工藝系統解決方案和工藝裝備;
              We provide professional system solution and process equipments of automation and robot technology application.
        3、食品乳品、制藥、生物、制冷、石油化工、船舶制造、能源、造紙、紡織系統領域承壓系統集成整體解決方案;
              We provide professional integrated solution for pressure bearing system in fields of food dairy, biopharmaceutical, refrigerating, petrochemical, marine engineering, energy, paper-making, fabrics, etc.
        4、涂裝環保設備:VOC廢氣、廢水、粉塵處理和噪音治理系統工藝解決方案和工藝裝備。
              We provide environment protection blasting and painting equipment: process solution and equipment of VOCs waste gas, waste water, dust, noise treatment system.
        企業主導產品如下 The leading products of our company are as follows:
        主營業務:表面處理工程系統集成的設計、研發、生產和銷售。
        Main business: design, research, production and sales of surface treatment engineering system integration.
        六類主要產品:自動化涂裝生產線、智能機器人噴涂系統、自動化噴拋丸生產線、智能機器人噴拋丸強化系統、自動化熱噴涂系統、涂裝節能環保設備。
        Six main product categories are: automatic painting production line, intelligent robot painting system, automatic shot/wheel blasting production line, intelligent robot shot peening system, automatic thermal spraying system, energy saving and environmental protection equipment for painting.
        產品主要應用于:新材料、新能源、工程機械、汽車制造、集裝箱、船舶海洋工程、航空航天、港口橋梁、電子電氣、環保工程、印刷造紙機械、醫療機械、紡織機械等領域。
        The products are mainly applied in: new materials, new energy, engineering machinery, automobile manufacturing, containers, marine engineering, aeronautics and astronautics, port bridges, electronic and electrical, environmental protection engineering, printing and papermaking machinery, medical machinery, textile machinery and so on.
        公司生產的表面工程系統集成具備智能、自動化的特點,可實現工業生產過程自動化控制,因而屬于自動化裝備。根據《高端裝備制造業“十二五”規劃》中對高端裝備的定義“主要包括傳統產業轉型升級和戰略性新興產業發展所需的高技術高附加值裝備”,公司產品屬于高端裝備,是為國民經濟其他行業提供技術裝備的戰略性產業。
        The surface engineering system of our company integrates the characteristics of intelligence and automation, it can realize the automatic control of industrial production process, so it belongs to automatic equipment. According to the definition of premium-end equipment of 《The 125th programme of premium-end equipment manufacturing industry》, “it mainly includes the high technology and high value-added equipment required by traditional industrial transformation upgrading and the development of strategic new-emerging industries”. The company's products belong to the premium-end equipment, which is a strategic industry that provides technical equipment for the other industries of the national economy.
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