GH2132高温耐久功能

根据正交实验的GH2132用分段式丝锥研发
高温合金GH2132属难加工资料,特别是用丝锥攻制内螺纹尤其困难,传统的攻丝计划都存在必定的缺点,导致在实践出产中无法完成GH2132一次攻丝成型。经过对丝锥资料与结构的优化,研发出了分段式丝锥,并根据正交实验的极差剖析成果得知分段式丝锥参数对攻丝峰值扭矩的影响次序为:二次切削部分长度L2>丝锥前角α>切削引导部分L1高度H,得出了分段式丝锥的最优参数组合为丝锥前角α=4°,切削引导部分L1高度H=4. 30 mm,二次切削部分长度L2=8 P,此时攻丝峰值扭矩为7. 9 N·m,同时将将此参数进行出产验证,分段式丝锥寿命可达1 600次,完成了GH2132资料的一次攻丝成型,满足了企业的实践出产需求,而且对于丝锥的设计具有重要的参考价值。

Development of segmented tap for GH2132 based on orthogonal experiment
High temperature alloy GH2132 is a difficult to machine material, especially when tapping internal threads with a tap. Traditional tapping methods have certain defects, which make it impossible to achieve GH2132 one-time tapping in actual production. By optimizing the material and structure of the tap, a segmented tap was developed. Based on the range analysis results of orthogonal experiments, it was found that the order of the influence of segmented tap parameters on the peak tapping torque is: the length of the secondary cutting part L2>the leading angle of the tap α> The cutting guide section L1 has a height of H, and the optimal parameter combination for the segmented tap is the leading angle of the tap α= 4 °, cutting guide section L1 height H=4 30 mm, the length of the secondary cutting part L2=8 P, and the peak tapping torque at this time is 7 9 N · m, and this parameter will be validated in production. The segmented tap has a lifespan of up to 1600 times, achieving one-time tapping and forming of GH2132 material, meeting the actual production needs of enterprises, and has important reference value for tap design.
GH2132高温耐久功能检测影响要素探讨
本文研讨了实验温度、保温时刻、电偶位置、过冲温度、实验中断时刻对GH2132耐久蠕变断裂时刻检测成果的影响,并结合GB/T2039-2012提出了各个实验参数的操控规模。经过实验参数的精确操控,将检测数据的误差操控在了±10%以内。
Exploring the influencing factors of GH2132 high-temperature endurance performance testing

This article investigates the effects of test temperature, insulation time, thermocouple position, overshoot temperature, and test interruption time on the detection results of GH2132 persistent creep fracture time, and proposes the control range of each test parameter in combination with GB/T2039-2012. Through precise control of experimental parameters, the error of the detection data was controlled within ± 10%.
GH2132高温合金
GH2132合金是Fe-25Ni-15Cr基高温合金,加入Mo、Ti、Al、V及微量B综合强化。在650℃以下具有高的屈服强度和耐久强度、蠕变强度,而且具有较好的加工塑性和满足的焊接功能。适合制造在650℃以下长期作业的航空发动机高温承力部件,如涡轮盘、压气机盘、转子叶片和紧固件等。附近商标:美国的A-286 P. Q. A286 UNSS666286、法国的Zb NCT25。
GH2132 high-temperature alloy
GH2132 alloy is a Fe-25Ni-15Cr based high-temperature alloy, which is comprehensively strengthened with Mo, Ti, Al, V, and trace amounts of B. It has high yield strength, tensile strength, creep strength, and good processing plasticity and satisfactory welding performance below 650 ℃. Suitable for manufacturing high-temperature load-bearing components of aircraft engines that operate for a long time below 650 ℃, such as turbine discs, compressor discs, rotor blades, and fasteners. Similar brands: A-286 P. Q. A286 UNSS666286 from the United States and Zb NCT25 from France.
时效温度对GH2132合金安排与力学功能的影响
采用光学显微镜、扫描电镜、微机操控电子全能实验机等仪器研讨了620、650、680、720、750、780℃单级时效和720℃+650℃双级时效对GH2132合金显微安排及力学功能的影响。成果表明:双级时效的抗拉强度和剪切强度高于单级时效的抗拉强度和剪切强度,抗拉强度到达1130 MPa,剪切强度到达720 MPa。且在620～780℃的温度规模内进行单级时效时,跟着时效温度的提高,合金的抗拉强度和剪切强度呈现先升高后降低的趋势,在720℃时抗拉强度到达最大值1065 MPa,剪切强度到达最大值685 MPa。
The effect of aging temperature on the microstructure and mechanical properties of GH2132 alloy
The effects of single stage aging at 620, 650, 680, 720, 750, 780 ℃ and dual stage aging at 720 ℃+650 ℃ on the microstructure and mechanical properties of GH2132 alloy were studied using optical microscopy, scanning electron microscopy, and microcomputer controlled electronic universal testing machine. The results show that the tensile strength and shear strength of two-stage aging are higher than those of single-stage aging, with a tensile strength of 1130 MPa and a shear strength of 720 MPa. When single stage aging is carried out within the temperature range of 620-780 ℃, with the increase of aging temperature, the tensile strength and shear strength of the alloy show a trend of first increasing and then decreasing. At 720 ℃, the maximum tensile strength reaches 1065 MPa, and the maximum shear strength reaches 685 MPa.