高温回火

The heat treatment method integrating isothermal annealing,quench hot and double tempering was made on the cold-work die steel XW-42 for its strengthening and toughening .

采用等温退火+高温淬火+二次回火工艺对冷作模具钢XW-42进行强韧化处理，提高了模具强度、塑性及韧性，此工艺应用于某型号表尺座的成形，模具使用寿命由原来的2400件提高到7300件，极大地降低了生产成本。

By the furnace body, the stainless steel crucible, electrically operated toward the multiple swinging material frame, stainless steel fast Leng Bao, the heating unit and control the warm cabinet to be composed automatically, may use the different resolver, carries on components quenching, the tempering heating, the isothermal quench to cool, the liquid thermochemical treatment and so on many kinds of crafts, the furnace body becomes by the section and the steel plate welding, the stove surface uses δ=14mm the board to make, the nitre salt furnace lining uses the ultra light quality high strength 0.6g/cm3 micro bead refractory brick, clamps the stratification aluminum silicate textile fiber, the furnace lining and the furnace shell fills the heat preservation inflation heat preservation powder, the entire structure for the standard energy conservation furnace lining, the nitre salt stove's heating element uses the thick diameter 0Cr25Al5 high temperature resistance wire to circle spiral-shaped according to the average temperature cloth silk law,Places in the furnace lining puts on the silk brick, puts the silk brick to use the front part to go up 20° against falls the silk brick, the resistance wire is not easy to drop out.

由炉体、不锈钢坩锅、电动往复式摆动料架、不锈钢速冷包、电热元件和自动控温柜组成，可以使用不同溶剂，进行零件淬火、回火加热、等温淬火冷却，液体化学热处理等多种工艺，炉体由型钢和钢板焊接而成，炉面采用δ=14mm板制成，硝盐炉衬采用超轻质高强度0.6g/cm3微珠耐火砖，夹层置硅酸铝纤维，炉衬与炉壳间填充保温膨胀保温粉，整个结构为标准型节能炉衬，硝盐炉的发热元件采用较粗直径0Cr25Al5高温电阻丝绕成螺旋状按照均温布丝法，安置在炉衬的搁丝砖上，搁丝砖采用前部上翘20°防掉丝砖，电阻丝不易掉出。

It's consists of furnace body, stainless steel crucible, electrically multiple swinging material frame, stainless steel fast cooling package, galvanothermy unit and the automatical control temperature tank, can use the different impregnant, carry through part quenching,tempering heating,isothermal quenchcooling,liquid chemical heat treatment and so on many kinds of technics, the furnace body is welded by profiled bar and armor plate, the surface of furnace is made of δ=14mm board, the nitre salt furnace lining from ultralight high-strength 0.6g/cm3 micro bead refractory brick, clamp stratificationfilled with aluminum silicate fiber, the middle of furnace lining and furnace shell filled with expanded heat preservation powder, the entire structure is the standard energy-saving furnace lining, according to the average temperature cloth silk law, the nitre salt furnace's heating element uses the

由炉体、不锈钢坩锅、电动往复式摆动料架、不锈钢速冷包、电热元件和自动控温柜组成，可以使用不同溶剂，进行零件淬火、回火加热、等温淬火冷却，液体化学热处理等多种工艺，炉体由型钢和钢板焊接而成，炉面采用δ=14mm板制成，硝盐炉衬采用超轻质高强度0.6g/cm3微珠耐火砖，夹层置硅酸铝纤维，炉衬与炉壳间填充保温膨胀保温粉，整个结构为标准型节能炉衬，硝盐炉的发热元件采用较粗直径0Cr25Al5高温电阻丝绕成螺旋状按照

By the furnace body, the stainless steel crucible, electrically operated toward the multiple swinging material frame, stainless steel fast Leng Bao, the heating unit and control the warm cabinet to be composed automatically, may use the different resolver, carries on components quenching, the temperingheating, the isothermal quench to cool, the liquid thermochemical treatment and so on many kinds of crafts, the furnace body becomes by the section and the steel plate welding, the stove surface uses δ=14mm the board to make, the nitre salt furnace lining uses the ultra light quality high strength 0.6g/cm3micro bead refractory brick, clamps the stratification aluminum silicate textile fiber, the furnace lining and the furnace shell fills the heat preservation inflation heat preservation powder, the entire structure for the standard energy conservation furnace lining, the nitre salt stove's heating element

由炉体、不锈钢坩锅、电动往复式摆动料架、不锈钢速冷包、电热元件和自动控温柜组成，可以使用不同溶剂，进行零件淬火、回火加热、等温淬火冷却，液体化学热处理等多种工艺，炉体由型钢和钢板焊接而成，炉面采用δ=14mm板制成，硝盐炉衬采用超轻质高强度0.6g/cm3微珠耐火砖，夹层置硅酸铝纤维，炉衬与炉壳间填充保温膨胀保温粉，整个结构为标准型节能炉衬，硝盐炉的发热元件采用较粗直径0Cr25Al5高温电阻丝绕成螺旋状按照

This invention discloses a preparation method for anti-corrosion rare earth magnet material characterizing that it takes the optimized grain-boundary phase design as the starting point on the basis of a dual alloy method to select Nd base alloy with high crystal forming ability as the assist alloy and reduces the temperature of the press mold blank in a quartz container to room temperature from over grain-boundary phase melting point with the water extraction way to get enough cooling rate and guarantee the non-grain-boundary phase, compared with the material of the same composition prepared by ordinary method, the weightlessness of this invented material reduces over 30% after testing the weightlessness of the material by laying it for 96 hours under 121deg.C, 2 atmosphere and 100% humid environment to show the advanced performance of anti-corrosion.

本发明公开了一种耐腐蚀稀土永磁材料的制备方法，其特征是它在双合金法制备工艺的基础上，以优化晶界相设计为出发点，选取具有较高非晶形成能力的Nd基合金为辅合金，并在烧结回火时将置于耐高温石英容器中的压型坯件，从晶界相熔点以上以水淬冷却的方式降温至室温，以达到足够的冷却速率，确保得到非晶晶界相，根据本发明制得的耐腐蚀稀土永磁材料，通过测量在121℃、2个大气压以及100％湿度环境下放置96小时后材料的失重情况，结果显示本发明得到的材料与常规方法制备的相同成分的稀土永磁材料相比失重减少了30％以上，充分证明其具备了更优越的耐腐蚀性能。可广泛应用于电子、汽车、计算机、电力、机械、能源、环保、国防、医疗器械等领域。

The annealing experiments with different processes and the saw cutting life test on machine hacksaw blade s made of W9Mo3Cr4V HHS are carried out.

对W9Mo3Cr4V高速钢机用锯条进行了退火工艺试验和锯切寿命试验，试验结果表明，不同退火工艺与锯条淬火回火硬度及锯切寿命之间不存在明显对应关系，但高温长时间退火对锯切寿命有不利影响。

Mainly uses in the laboratory, the Industrial and mining establishment, the universities, colleges and institutes, the Scientific research Unit making the ultimate analysis determination, the ash content determination, the few low melting point metal to fuse, other small heat treatments and experiment and so on metal parts quenching, annealing, tempering, the electric stove may also use in the high temperature heating experiment.

主要用于实验室、工矿企业、大专院校、科研单位作元素分析测定、灰份测定、少量低熔点金属熔解、其它小型金属零件淬火、退火、回火等热处理和实验之用，电炉还可用于高温加热实验。

Engine tappet is easy distorting and cracking by using whole heating quenching in salt bath and the high temperature annealing for the pole.

发动机挺杆经盐浴炉整体加热淬火和杆部高温退火处理后易产生畸变开裂，改用专用淬火设备，在发动机挺杆底面进行局部火焰淬火和低温回火工艺后，实现了对挺杆底面局部淬火而杆部硬度不发生变化，达到了质量要求，产品生产自动化程度高，生产率高，效果良

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。