摘要：【中文】本发明涉及一种精确实现带钢边部对称遮挡的方法，属于冶金行业热轧设备改造和热轧工艺控制技术领域。技术方案是：通过在模型数据表中预设定不同品种、规格对应的边部遮挡参数，进一步通过检测带钢的横向温度分布来识别实际遮挡宽度的偏差并反馈，实现灵活控制边部遮挡宽度调整，保证不同品种带钢的边部遮挡要求，进而确保不同品种带钢的温度控制。本发明还通过调整边部遮挡机构的横向位置，实现不对中带钢的对称边部遮挡；通过两个方法协调控制，减少了不同品种、不同规格及不同对中程度的热轧产品由于边部温度梯度影响而带来的性能、板型等质量问题。 【EN】The invention relates to a method for accurately realizing symmetrical shielding of the edge of strip steel, belonging to the technical field of hot rolling equipment transformation and hot rolling process control in the metallurgical industry. The technical scheme is as follows: the edge shielding parameters corresponding to different varieties and specifications are preset in the model data table, and the deviation of the actual shielding width is further identified and fed back by detecting the transverse temperature distribution of the strip steel, so that the adjustment of the edge shielding width is flexibly controlled, the edge shielding requirements of different varieties of strip steel are met, and the temperature control of different varieties of strip steel is further ensured. The invention also realizes the shielding of the symmetrical edge part of the non-centering strip steel by adjusting the transverse position of the edge part shielding mechanism; the quality problems of performance, plate shape and the like of hot rolling products of different varieties, different specifications and different centering degrees caused by the influence of edge temperature gradient are reduced through the coordination control of the two methods.

摘要：【中文】本发明属于钢铁冶金领域，涉及大线能量焊接用EH36海洋工程用钢板及其制备方法，包括以下步骤：1）冶炼与铸造，其中钢板以质量百分数计：C：0.05~0.08%、Si：0.12~0.18%、Mn：1.2~1.8%、P：≤0.01%、S：0.003~0.01%、Nb：0.01~0.015%、N：0.004~0.006%、Zr：0.001~0.006%，Ti：0.004~0.02%，其余为Fe及其他不可避免杂质元素；2）轧制；3）冷却。本发明可以显著提高EH36钢焊接热影响区低温冲击韧性，满足海洋工程对大线能量钢的需求。 【EN】The invention belongs to the field of ferrous metallurgy, and relates to a steel plate for EH36 ocean engineering for large heat input welding and a preparation method thereof, wherein the preparation method comprises the following steps: 1) smelting and casting, wherein the steel plate comprises the following components in percentage by mass: c: 0.05 to 0.08%, Si: 0.12 to 0.18%, Mn: 1.2-1.8%, P: less than or equal to 0.01 percent, S: 0.003 to 0.01%, Nb: 0.01-0.015%, N: 0.004-0.006%, Zr: 0.001-0.006%, Ti: 0.004-0.02% of Fe and other inevitable impurity elements in balance; 2) rolling; 3) and (6) cooling. The invention can obviously improve the low-temperature impact toughness of the EH36 steel welding heat affected zone and meet the requirements of ocean engineering on large-line energy steel.

摘要：【中文】本发明公开了一种提高镍铁基高温合金板材冲击韧性的热处理工艺，所述热处理工艺包括铸锭开坯轧制、一次加热冷却、二次加热冷却、三次加热冷却、四次加热冷却工序。本发明镍铁基高温合金板材热处理工艺可以在保持镍铁基高温合金板材具有较高室温及高温拉伸性能的同时，提高室温冲击韧性；镍铁基高温合金板材：室温抗拉强度≥1480MPa、室温屈服强度≥1150MPa、室温延伸率≥12%，室温下夏比冲击功35.1～54.9J；750℃下抗拉强度≥1120MPa、屈服强度≥950MPa、延伸率≥19%。 【EN】The invention discloses a heat treatment process for improving the impact toughness of a nickel-iron-based high-temperature alloy plate. The heat treatment process of the nickel-iron-based high-temperature alloy plate can improve the room-temperature impact toughness while keeping the nickel-iron-based high-temperature alloy plate to have higher room-temperature and high-temperature tensile properties; nickel-iron based high temperature alloy plate: the room-temperature tensile strength is not less than 1480MPa, the room-temperature yield strength is not less than 1150MPa, the room-temperature elongation is not less than 12%, and the Charpy impact energy at room temperature is 35.1-54.9J; the tensile strength is more than or equal to 1120MPa, the yield strength is more than or equal to 950MPa, and the elongation is more than or equal to 19 percent at 750 ℃.

摘要：【中文】本发明公开了一种大线能量焊接用海洋工程用钢及其制备方法，其化学成分的质量百分含量为：C 0.04%～0.11%，Si 0.13%～0.22%，Mn 1.1%～2.1%，P≤0.012%,S≤0.015%,Nb 0.008%～0.02%，N 0.003%～0.008%，Al 0.002%～0.008%，Zr 0.001%～0.008%，Ti 0.008%～0.024%，Ca 0.0005%～0.004%，余量为Fe及其他不可避免杂质元素；所述钢中(Ca,Al,Ti,Zr)O_x‑MnS夹杂物尺寸为0.31～2.7μm，面密度为695～1404个/mm²；所述钢的焊接热影响区组织中针状铁素体含量高于60%。本钢中(Ca,Al,Ti,Zr)Ox‑MnS夹杂物可以起到钉扎奥氏体晶界和促进针状铁素体形成的作用；钢板焊接热影响区组织中针状铁素体的形成能细化焊接热影响区晶粒，微裂纹解理跨越针状铁素体时会发生偏转，裂纹扩展需要更高的能量，钢板钢焊接热影响区表现出良好的低温冲击韧性。 【EN】The invention discloses steel for ocean engineering for high heat input welding and a preparation method thereof, wherein the steel comprises the following chemical components in percentage by mass: 0.04 to 0.11 percent of C, 0.13 to 0.22 percent of Si, 1.1 to 2.1 percent of Mn, less than or equal to 0.012 percent of P, less than or equal to 0.015 percent of S, 0.008 to 0.02 percent of Nb, 0.003 to 0.008 percent of N, 0.002 to 0.008 percent of Al, 0.001 to 0.008 percent of Zr, 0.008 to 0.024 percent of Ti, 0.0005 to 0.004 percent of Ca and the balance ofFe and other unavoidable impurity elements; (Ca, Al, Ti, Zr) O in said steel_x-MnS inclusion size is 0.31-2.7 μm, and area density is 695-1404 pieces/mm²(ii) a The content of acicular ferrite in the structure of the welding heat affected zone of the steel is higher than 60 percent. The (Ca, Al, Ti, Zr) Ox-MnS inclusion in the steel can play the roles of pinning austenite crystal boundary and promoting the formation of acicular ferrite; the acicular ferrite in the steel plate welding heat affected zone structure can be formed to refine the grains of the welding heat affected zone, the microcrack cleavage can deflect when crossing the acicular ferrite, higher energy is needed for crack propagation, and the steel plate welding heat affected zone shows good low-temperature impact toughness.

摘要：【中文】本发明涉及一种线材剪断矫直装置及剪断矫直方法，属于线材剪断矫直设备技术领域。技术方案是：连接板（3）的两端分别通过大螺栓一（6）连接在左钳臂（2a）和右钳臂（2b）的中间，左矫直压头（1a）和右矫直压头（1b）分别通过螺钉（5）连接在左钳臂（2a）和右钳臂（2b）的一端，左钳臂（2a）和右钳臂（2b）的另一端分别通过大螺栓二（８）与左把手（4a）和右把手（4b）连接，左把手（4a）和右把手（4b）之间通过小螺栓（7）连接；左矫直压头（1a）和右矫直压头（1b）上分别设有V型槽，左钳臂（2a）和右钳臂（2b）上分别设有刀片（11）。本发明的有益效果是：能快速、高效的对不同规格的线材做到现场剪断、矫直。 【EN】The invention relates to a wire shearing and straightening device and a shearing and straightening method, and belongs to the technical field of wire shearing and straightening equipment. The technical scheme is as follows: two ends of a connecting plate (3) are respectively connected to the middles of a left tong arm (2 a) and a right tong arm (2 b) through large bolts (6), a left straightening pressure head (1 a) and a right straightening pressure head (1 b) are respectively connected to one ends of the left tong arm (2 a) and the right tong arm (2 b) through screws (5), the other ends of the left tong arm (2 a) and the right tong arm (2 b) are respectively connected with a left handle (4 a) and a right handle (4 b) through large bolts (8), and the left handle (4 a) and the right handle (4 b) are connected through small bolts (7); the left straightening pressure head (1 a) and the right straightening pressure head (1 b) are respectively provided with a V-shaped groove, and the left clamp arm (2 a) and the right clamp arm (2 b) are respectively provided with a blade (11). The invention has the beneficial effects that: the wire rod straightening machine can quickly and efficiently cut and straighten wire rods with different specifications on site.

摘要：【中文】一种提高轴承钢连铸坯内部质量的连铸方法，其包括浇注、拉矫和切割过程；在拉矫机与切割机之间距离拉矫机1.5～2.5m处设置热轧机对铸坯进行压下，热轧机的线速度与连铸的拉速同步；所述铸坯在表面温度为820～870℃时进行压下，单道次压下量为35～45mm。本方法通过设置热轧机在连铸坯完全凝固后，利用铸坯芯表190℃左右的温差，利用高温余热在线单道次大压下量轧制，使铸坯内部变形量大于表面；从而压合铸坯内部缩孔和疏松、破碎枝晶、细化晶粒，提高铸坯的致密度；同时铸坯处于高温塑性区，不易产生裂纹，从而整体提高铸坯的内部质量。本方法简单，可有效消除大方坯轴承钢铸坯的内部疏松和缩孔，提高铸坯内部质量。 【EN】A continuous casting method for improving the internal quality of a bearing steel continuous casting billet comprises the processes of pouring, straightening and cutting; arranging a hot rolling mill between the tension leveler and the cutting machine at a distance of 1.5-2.5 m from the tension leveler to reduce the casting blank, wherein the linear speed of the hot rolling mill is synchronous with the continuous casting pulling speed; and reducing the casting blank at the surface temperature of 820-870 ℃, wherein the single-pass reduction is 35-45 mm. The method comprises the steps that after a continuous casting blank is completely solidified, a hot rolling mill is arranged, the temperature difference of about 190 ℃ of a casting blank core surface is utilized, high-temperature waste heat is utilized for on-line single-pass large-reduction rolling, and the internal deformation of the casting blank is larger than the surface; thereby pressing shrinkage holes and looseness in the casting blank, crushing dendritic crystals, refining grains and improving the compactness of the casting blank; meanwhile, the casting blank is in a high-temperature plastic area and is not easy to crack, so that the internal quality of the casting blank is integrally improved. The method is simple, can effectively eliminate the internal looseness and shrinkage cavity of the bloom bearing steel casting blank, and improves the internal quality of the casting blank.

摘要：【中文】本发明涉及工业循环冷却水技术领域，具体为一种斜向空冷管束逆气流移动水膜布置系统，包括换热管束牵引机构，换热管束倾斜设置，其顶端设有上轨道，其底端设有下轨道，其两侧均设有拖链，上轨道和下轨道的数量均为三根，且其中两根位于换热管束的两侧，另外一根位于换热管束的中段，上轨道上滑动连接布水框架，下轨道滑动连接随动挡风收水板，拖链的内侧设有进水软管，且拖链与进水软管的其中一端均与布水框架连接，有益效果为：本发明可对斜向布置的换热管束进行移动挡风均匀布膜，实现布膜‑蒸发的交替过程，最大化利用水膜的汽化潜热，避免了传统湿式空冷器大量喷淋水的现象，大幅提高换热效率。 【EN】The invention relates to the technical field of industrial circulating cooling water, in particular to an oblique air cooling tube bundle countercurrent air flow moving water film arrangement system, which comprises a heat exchange tube bundle traction mechanism, wherein a heat exchange tube bundle is obliquely arranged, the top end of the heat exchange tube bundle is provided with an upper rail, the bottom end of the heat exchange tube bundle is provided with a lower rail, two sides of the heat exchange tube bundle are respectively provided with a tow chain, the number of the upper rail and the number of the lower rail are respectively three, two of the tow chains are positioned at two sides of the heat exchange tube bundle, the other one of the two tow chains is positioned at the middle section of the heat exchange tube bundle, the upper rail is in sliding connection with a water distribution frame, the lower rail is in sliding connection with a follow-up wind shielding and water collecting plate, the inner: the invention can move and wind shield the obliquely arranged heat exchange tube bundle to uniformly distribute the film, realizes the alternate process of film distribution and evaporation, maximally utilizes the latent heat of vaporization of the water film, avoids the phenomenon of spraying a large amount of water in the traditional wet air cooler, and greatly improves the heat exchange efficiency.

摘要：【中文】一种模铸下注法浇钢浇铸速度的控制方法，属于冶金行业模铸生产工艺技术领域，用于对模铸下注法浇钢浇铸速度进行合理控制。其技术方案是：在钢锭模壁下侧开测温盲孔，并形成沿径向不同深度布置的两个测温点，通过对浇铸过程中钢锭模壁的温度进行连续精确检测，并延时计算出铸模内钢水的温度，进而调节钢包内钢水的浇铸速度，控制钢锭模内的钢水温度，最终达到钢液的均匀凝固，避免钢锭的疏松和缩孔。本发明是模铸下注法浇钢浇铸工艺的首创，解决了目前急需解决的及时掌握钢锭模中钢液浇注过程温度的测量、监控整个浇铸期间的温度变化、实现自动控制钢包钢流大小以及浇注速度的问题，为连续生产高质量的铸坯提供了可靠的技术保障。 【EN】A control method for the steel casting speed of the lower casting method of die casting belongs to the technical field of die casting production processes in the metallurgical industry and is used for reasonably controlling the steel casting speed of the lower casting method of die casting. The technical scheme is as follows: the method comprises the steps of forming a blind temperature measuring hole on the lower side of the steel ingot mold wall, forming two temperature measuring points which are arranged at different depths along the radial direction, continuously and accurately detecting the temperature of the steel ingot mold wall in the casting process, calculating the temperature of molten steel in a casting mold in a delayed mode, further adjusting the casting speed of the molten steel in a steel ladle, controlling the temperature of the molten steel in the steel ingot mold, finally achieving uniform solidification of the molten steel, and avoiding looseness and shrinkage of a steel ingot. The invention is the first creation of the steel casting process by the die casting bottom pouring method, solves the problems that the temperature measurement in the molten steel casting process in the ingot mould needs to be mastered in time, the temperature change in the whole casting period is monitored, and the automatic control of the ladle steel flow and the casting speed is realized, and provides reliable technical guarantee for continuously producing high-quality casting blanks.

摘要：【中文】一种用于长期挂片实验的编码标记方法，属于材料分析方法技术领域，用于对挂片试样进行编码标记。其技术方案是：在挂片试样上利用钻孔设备加工三个等直径的通孔，两个为定位孔，一个为方位孔，不同的挂片试样的方位孔与两个定位孔连线的夹角不同。解码时，利用图像识别设备对三个通孔进行位置信息采集，通过读取方位孔与定位孔的距离和角度关系获得基于编码规则的数字编号信息，进而读取试样具体信息。本发明在利用称重法、观察法评价工程材料的耐腐蚀性能时，既不影响试验结果，又方便编码、解码和标记，同时又不会造成长期实验过程中标记的遗失，是一种作为腐蚀评价的非常有效标记方法，在行业内有极好的推广使用价值。 【EN】A coding and marking method for long-term hanging film experiments belongs to the technical field of material analysis methods and is used for coding and marking hanging film samples. The technical scheme is as follows: three through holes with equal diameters are processed on the hanging piece samples by utilizing drilling equipment, two through holes are positioning holes, one through hole is an azimuth hole, and the included angles of the connecting lines of the azimuth hole and the two positioning holes of different hanging piece samples are different. During decoding, the image recognition equipment is used for collecting position information of the three through holes, digital number information based on coding rules is obtained by reading the distance and the angle relation between the azimuth hole and the positioning hole, and further, concrete information of the sample is read. When the corrosion resistance of the engineering material is evaluated by using a weighing method and an observation method, the corrosion resistance evaluation method does not influence the test result, is convenient for encoding, decoding and marking, does not cause the loss of the mark in the long-term experiment process, is a very effective marking method for corrosion evaluation, and has extremely good popularization and use values in the industry.

摘要：【中文】本发明公开了一种测定镍基合金中钽元素含量方法，其方法步骤为：（1）配置标Ta元素标准溶液；（2）根据镍基合金中Cr、V等元素的实际含量范围，建立干扰校正模型；（3）将Ta元素标准溶液在电感耦合等离子体发射光谱仪上进行测定，绘制标准曲线；（4）精确称取镍基合金样品，制备样品溶液；（5）测定样品溶液中Ta元素的发射强度，根据标准曲线计算样品溶液中Ta元素的含量，然后经干扰校正公式校正得到镍基合金中Ta元素的实际含量。本方法能准确测定镍基合金中钽元素的实际含量，具有良好的测试精度。 【EN】The invention discloses a method for measuring the content of tantalum in nickel-based alloy, which comprises the following steps: (1) preparing standard solution of standard Ta element; (2) establishing an interference correction model according to the actual content range of Cr, V and other elements in the nickel-based alloy; (3) measuring the Ta element standard solution on an inductively coupled plasma emission spectrometer, and drawing a standard curve; (4) accurately weighing a nickel-based alloy sample, and preparing a sample solution; (5) and measuring the emission intensity of the Ta element in the sample solution, calculating the content of the Ta element in the sample solution according to a standard curve, and then correcting by an interference correction formula to obtain the actual content of the Ta element in the nickel-based alloy. The method can accurately measure the actual content of the tantalum element in the nickel-based alloy and has good test precision.