查询词典 preheating

Preheating temperature determination besides consideration material chemical composition, but also should consider the crystal to organization's change.

预热温度的确定除考虑材料化学成份外，还应考虑到晶向组织的变化。

7 Preheating shall be carried out for carbon and low alloy steel welding where required.

在进行碳钢及低合金钢的焊接时应进行预热。

Finally,the several experiments were carried out to prove the effectiveness of the proposed preheating method.

最后，建立纵向塞曼激光器预热及稳频控制系统，在不同环境温度下对本文预热方法进行实验验证。

In this research, microwave technology was adopted to solve the problem of low preheating pellet strength with organic binder.

针对有机粘结剂铁矿球团预热阶段强度低的问题，进行了微波预热球团的实验研究，并与常规管炉预热效果进行了比较。

Your titanium cookware heats quickly requiring no preheating and the use of lower heat settings.

您的钛炊具加热迅速不要求预热和对更低的热的用途。

Compared with the prior art, the preheating method preheats the reaction system to an optimal reaction temperature by the deionized water or the grinding fluid with certain temperature and does not need to preheat the reaction system by grinding dummy wafers.

与现有技术相比，本发明预热方法通过带有一定温度的去离子水或者研磨液将反应系统加热到最佳的反应温度，不需要通过研磨一些空挡片进行预热。

Because of its super size and high strength, during fitting and welding after preheating, splaying crack in the penstocks occurred.

压力钢管因尺寸超大、刚度强，预热装配和焊接过程中出现焊缝张开及缺陷严重超标的现象。

Thermal tests on air self-preheating hot stove ceramic burners.

空气自身预热热风炉陶瓷燃烧器热态试验。

Butt Weld and docking and corner combinations Weld, in Weld ends located arc plate and extraction plate in igniting board then leads to the welding seam, joint halfway shall weld joints in front of 2.0 mm Department Firing arc, welding pieces after preheating rod will return to weld the origin, pool filled to the required thickness, before forward welding; Welding speed : Isokinetic welding requirements to ensure weld thickness, width uniform, which masks to look for hot metal and slag bath equidistance (2-3 mm)%; Arc welding rod length : different models and determined that the general requirements of arc length is stable, acid electrode generally 3-4 mm, 2-3 mm normally alkaline electrode%; Welding perspective : According to determine the thickness of two pieces of welding, welding angle has two aspects : First, the angle between the direction of the rod and welding of 60-75 ; The second is the angle between two electrodes and welding around, the same thickness as welding, welding and welding pieces incident angle of 45 ; When the thickness ranging from welding, welding electrode and thick and thin pieces of welding electrode side angle greater than the angle between the side pieces; Arc : admission to the end of each weld should be filled crater, in the direction opposite to the direction of the back-arc welding, arc welding unchanged inside pit in 1974, to prevent the crater bite of meat.

对接焊缝及对接和角接组合焊缝，在焊缝两端设引弧板和引出板，必须在引弧板上引出后再焊到焊缝区，中途接头则应在焊缝接头前方15～20㎜处打火引弧，将焊件预热后再将焊条退回到焊缝起始处，把熔池填满到要求的厚度后，方可向前施焊；焊接速度：要求等速焊接，保证焊缝厚度、宽度均匀一致，从面罩内看熔池中铁水与熔渣保持等距离（2～3㎜）为宜；焊接电弧长度：根据焊条型号不同而确定，一般要求电弧长度稳定不变，酸性焊条一般为3～4㎜，碱性焊条一般为2～3㎜为宜；焊接角度：根据两焊件的厚度确定，焊接角度有两个方面，一是焊条与焊接前进方向的夹角为60～75 ；二是焊条与焊接左右夹角有两种情况，当焊件厚度相等时，焊件与焊件夹角为45 ；当焊件厚度不等时，焊条与较厚焊件一侧夹角应大于焊条与薄焊件一侧夹角；收弧：每条焊缝焊到末尾，应将弧坑填满后，往焊接方向相反的方向带弧，使弧坑甩在焊道貌岸然里边，以防弧坑咬肉。

Based on this, there are several factors affecting the length of the flame and the NOx formation in the HTLOC process in chamber, these being excess air coefficient, preheating temperature of the gas and the air and the

在此基础上，研究了不同因素对高温低氧燃烧过程的影响，主要是对燃烧火焰长度的影响情况，又特别研究了对NOx生成的影响。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。