查询词典 metal working

This welding wire not only has the inherent properties of metal powder-cored wire, such as with better welding quality, without slag, highly efficiency and conveniently adjusting the alloying elements etc., but also has the advantage of low hardness in as-welded (less than HRC45), good machinability, high hardness in as-aged (more than HRC55) and better wear resistance with customary working procedure on making or repairing equipments such as rollers when reasonable designing the alloys content. The author adequately makes use of the high-tempering in the required stress relieving working procedure. During this working procedure, which causes the hardness of overlaying metal increased by the reason of austenite changes into tempered martensite and more chiefly what is the precipitation of a lot of carbide by secondary hardening simultaneously. This wire can solve the hard rolled problems of some solid wires with higher alloys while it can get over the conflict of existing overlaying materials what are always possesed high hardness with poor machinability or low hardness, good machinability with poor wear resistance. Further, it also can overcome the intenerating phenomena between welding beads and make the external hardness of overlaying metal uniform. Be sure it could be found important meaning in the overlaying of wear-resistant equipments, such as the precise roller.

该焊丝除了具有金属粉型药芯焊丝焊接质量好、无渣、高效率和合金成分可方便调节等固有的优点外，合理的设计粉芯中的合金成分，按通常工序制造与修复轧辊等设备，充分利用必需的消除应力工序的高温回火，堆焊层金属在奥氏体转变为回火马氏体的同时更主要是通过二次硬化析出了大量碳化物导致硬度增加，使得该焊丝还具有焊态硬度低(小于HRC45)、机加工性能好和时效态硬度高(大于HRC55)、耐磨性能好等优点，解决了某些高合金实芯焊丝轧制困难的问题，同时克服了现行堆焊材料硬度高、加工性能差或者硬度低、加工性能好、耐磨性差的矛盾，并能克服焊道之间的软化现象，使堆焊表面硬度较为均匀，对耐磨件，譬如精轧辊的堆焊具有重要意义。

Other kinds of metal working machines are not so widely used in machining metals as these three.

其他类型的金属加工机器不像这三种机床那样广泛应用在机器加工金属上。

Several other metal working methods were developed in ancient times and still define jewelry design today.

其他的一些古代金属工艺依旧影响着当今的饰品设计。

Several other metal working methods were developed in ancient times and still define jewelry design today.

其他几个金属加工方法，发展了古代和今天仍然定义珠宝设计。

Other metal working machines are not so widely used in machining metals as these three kinds.

其他金属运转的机器不是那么用途广泛在用机器制造的金属作为这三种类。

"The festival is about showing that there is still this metal working community in Sheffield," she said.

她说 &个节庆是为了让大家知道雪菲尔仍是金属制造工业的重镇。&

Our products are now widely used in textile, leather, plastic, metal working, construction, and aerospace industry.

产品的应用领域涉及纺织、皮革、橡塑、金属加工、建筑、航天航空等行业。

10 Years experience in the field of fabrication, welding, metal working.

五年以上机械加工，焊接及金属加工工作经验。

In addition to the machining process NC machine tools have also been developed for other metal working processes These machines the following.

此外，以加工过程数控机床也得到发展，为其他金属的工作程序，这些机器以下。

Is a professional sheet metal working company.

常熟多宝机械有限公司是专业钣金生产公司。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。