钒钢

The effect of vanadium on the strength and toughness of wheel steel normalized at different temperatures were studied.

研究了不同正火加热温度下钒对车轮钢强韧性的影响。

Hot deformed vanadium bearing TRIP-aided steels were isothermally treated at 350～450 ℃ for 30 min in order to study the effects of coiling temperature on its microstructure and mechanical properties.

中文摘要：含钒TRIP钢热变形后在350～450 ℃等温处理30 min，研究卷取温度对其显微组织和力学性能的影响。

TRIP steel containing V and Ti was annealed at 780℃ for 3min and then isothermally treated at 400 ℃, 425 ℃ and 475℃ for 100s and 300s respectively. The effects of the isothermal bainite temperature and holding time on microstructure, mechanical properties were investigated.

含钒、钛的TRIP钢在780℃退火3min，然后分别在400℃、425℃和475℃贝氏体区等温100s和300s，研究了不同贝氏体等温温度和等温时间对其显微组织、力学性能的影响。

The high iron and low silica sintering of titaniferous iron concentrate was realized with optimal proportioning ore under the present condition in Panzhihua New Steel and Vanadium Limited Company.

在攀枝花新钢钒股份有限公司炼铁厂现有的资源条件下，通过优化配矿实现含钛铁精矿高铁低硅烧结，烧结矿全铁的质量分数从49.20%提高到51.46%，SiO2的质量分数从5.30%降低到4.05%。

An ultra-high strength, weldable, low alloy steel with excellent cryogenic temperature toughness in the base plate and in the heat affected zone when welded, having a tensile strength greater than 830 MPa (120 ksi) and a micro-laminate microstructure comprising austenite film layers and fine-grained martensite/lower bainite laths, is prepared by heating a steel slab comprising iron and specified weight percentages of some or all of the additives carbon, manganese, nickel, nitrogen, copper, chromium, molybdenum, silicon, niobium, vanadium, titanium, aluminum, and boron; reducing the slab to form plate in one or more passes in a temperature range in which austenite recrystallizes; finish rolling the plate in one or more passes in a temperature range below the austenite recrystallization temperature and above the Ar3 transformation temperature; quenching the finish rolled plate to a suitable Quench Stop Temperature; stopping the quenching; and either, for a period of time, holding the plate substantially isothermally at the QST or slow-cooling the plate before air cooling, or simply air cooling the plate to ambient temperature.

在基体板以及焊接时的热影响区处的低温韧性优异的超高强度、可焊接、低合金钢具有高于830MPa（120ksi）的抗拉强度，并且具有包含奥氏体薄膜层和细晶粒的马氏体／下贝氏体板条的显微层状组织，所述钢的制备过程为：加热含有铁以及特定重量百分比的添加元素的钢坯，所述添加元素为碳，锰，镍，氮，铜，铬，钼，硅，铌，钒，钛，铝，以及硼中的一些或全部；在奥氏体可发生再结晶的温度范围内，采用一个或多个道次，将所述钢坯轧制成板材；在低于奥氏体再结晶温度但高于Ar 3 转变点的温度下，采用一个或多个道次对所述板材进行终轧；将所述终轧板材淬火至一适当淬火终止温度；停止所述淬火；或者在空冷前在QST点基本等温保持所述板材一段时间，或者对所述板材进行缓慢冷却，或者只是简单地将所述板材空冷至室温。

The set includes: powerful ratcheting handle, comfortable grip, chrome vanadium steel keys with black oxide coating for hardness.

该套装包括：强大的棘轮手柄，舒适的抓地力，铬钒为黑色氧化膜硬度钢的关键。

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％。