摘要：【中文】本发明公开了一种筒形件缩口装置，包括双作用伸缩缸、防皱装置、缩口上模、缩口下模和缩口驱动装置，缩口上模用于盛放筒形件的上部并与压力机的滑块固定连接，缩口下模用于盛放筒形件的下部并与压力机的工作台固定连接，双作用伸缩缸包括第一缸体、第二缸体和活塞杆，活塞杆依次穿过上夹持板、弹性环和下夹持板，活塞杆向上运动时，活塞杆会带动上夹持板和下夹持板夹紧弹性环，弹性环受压缩产生径向膨胀，同时对筒形件的缩口内壁产生支撑力，缩口驱动装置驱动缩口上模缩口时，减少了环向起皱的现象，同时提高了单次变形量，减少了缩口次数。 【EN】The invention discloses a tubular piece necking device which comprises a double-acting telescopic cylinder, an anti-crease device, an upper necking die, a lower necking die and a necking driving device, wherein the upper necking die is used for containing the upper part of a tubular piece and is fixedly connected with a slide block of a press machine, the lower necking die is used for containing the lower part of the tubular piece and is fixedly connected with a workbench of the press machine, the double-acting telescopic cylinder comprises a first cylinder body, a second cylinder body and a piston rod, the piston rod sequentially penetrates through an upper clamping plate, an elastic ring and a lower clamping plate, when the piston rod moves upwards, the piston rod can drive the upper clamping plate and the lower clamping plate to clamp the elastic ring, the elastic ring is compressed to generate radial expansion, meanwhile, supporting force is generated on the inner wall of a necking of the tubular piece, when the necking driving device drives the upper necking die to be subjected to necking, the phenomenon of annular wrinkling is reduced, meanwhile, the single.

摘要：【中文】本发明公开了一种管材充液多向挤压成形装置及方法，为水平冲头设置垂直滑轨结构，由上下模和前后滑块四部分组成模具主体，此结构解决了成形异形变截面管件过程中管坯轴心下降时难以密封、无法成形多侧内凹管件的问题；在液压通路中加装了挤压压力控制系统，解决了无法实现挤压过程中压力线性变化的问题，在合模过程中，当管坯内腔容积变化时可实现压力按指定路线加载，可获得壁厚分布更均匀、成形精度更高的成形件；采用先充入加压液体后闭合模具的顺序，管坯在模具的机械压力和管内液压的共同作用下成形为所需形状；本发明提供的管材充液多向挤压成形装置及方法，在降低成本的同时成形出高强度、高精度、壁厚均匀的多向内凹异形变截面管件。 【EN】The invention discloses a liquid-filled multidirectional extrusion forming device and method for a pipe, wherein a vertical sliding rail structure is arranged for a horizontal punch, and a die main body is formed by four parts, namely an upper die, a lower die, a front sliding block and a rear sliding block; an extrusion pressure control system is additionally arranged in the hydraulic passage, so that the problem that the linear change of the pressure in the extrusion process cannot be realized is solved, in the die assembly process, the pressure can be loaded according to a specified route when the volume of the inner cavity of the tube blank is changed, and a formed part with more uniform wall thickness distribution and higher forming precision can be obtained; the method comprises the steps of filling pressurized liquid and then closing a die, and forming a tube blank into a required shape under the combined action of the mechanical pressure of the die and the hydraulic pressure in the tube; the liquid-filled multidirectional extrusion forming device and the method for the pipe, provided by the invention, can form the multidirectional concave special-shaped variable-section pipe fitting with high strength, high precision and uniform wall thickness while reducing the cost.

摘要：【中文】本发明公开了一种压边力分区加载的装置及方法，其中装置包括凹模、平面压边圈、圆角区压边圈、压边圈固定板、伸缩结构和凸模。本发明通过设计平面区、圆角区可分区施加压边力的环形嵌套压边结构，拉深过程中平面区脱离平面压边圈前，通过圆角区压边圈对圆角区材料施加压边力，使本来作为工艺余料、待切除的圆角区材料继续变形，圆角区大部分材料成为拉深件的有效区域，提高材料利用率，改善零件的可成形性及壁厚均匀性，甚至减少成形道次，降低模具成本、设备成本。 【EN】The invention discloses a device and a method for loading a blank holder force in a partitioned mode. According to the annular nested blank pressing structure, the blank pressing force can be applied to the material in the fillet area by designing the annular nested blank pressing structure which can apply the blank pressing force to the planar area and the fillet area in a partition manner, the blank pressing force is applied to the material in the fillet area by the blank pressing ring in the fillet area before the planar area is separated from the planar blank pressing ring in the drawing process, so that the material which is originally used as a process excess material and is to be cut off is continuously deformed, most of the material in the fillet area becomes an effective area of a drawing part, the material utilization rate is improved, the formability and the wall thickness uniformity of a part are improved, even.

摘要：【中文】本发明公开了一种内外约束式管材充液压制密封装置及方法，装置包括用于密封管坯两端的密封冲头和与密封冲头滑动连接的滑轨；密封冲头包括内冲头和外冲头；内冲头包括内冲头导正段、内冲头密封段和内冲头连接段，内冲头密封段上设置有环形凹槽，环形凹槽内设置有密封圈，内冲头连接段上设置有外螺纹；外冲头包括密封段和外冲头连接段，外冲头密封段的直径由首端到尾端逐渐变小，外冲头连接段上设置有与内冲头连接段配合的内螺纹；本发明用内冲头和外冲头组合密封的形式，通过管端插入外冲头和内冲头之间，不断收紧管端压紧密封圈来实现密封，并且对管端内外侧均进行约束，避免了管坯轴心移动时的管端变形，实现充液压制过程中管端快速动密封。 【EN】The invention discloses an internal and external constraint type pipe liquid-filling pressing sealing device and a method, wherein the device comprises sealing punches for sealing two ends of a pipe blank and a slide rail connected with the sealing punches in a sliding manner; the sealing punch comprises an inner punch and an outer punch; the inner punch comprises an inner punch guide section, an inner punch sealing section and an inner punch connecting section, wherein an annular groove is formed in the inner punch sealing section, a sealing ring is arranged in the annular groove, and an external thread is formed in the inner punch connecting section; the outer punch comprises a sealing section and an outer punch connecting section, the diameter of the outer punch sealing section is gradually reduced from the head end to the tail end, and an internal thread matched with the inner punch connecting section is arranged on the outer punch connecting section; according to the invention, the inner punch and the outer punch are combined for sealing, the pipe end is inserted between the outer punch and the inner punch, the pipe end pressing sealing ring is continuously tightened to realize sealing, the inner side and the outer side of the pipe end are restrained, the pipe end deformation when the axis of the pipe blank moves is avoided, and the quick dynamic sealing of the pipe end in the process of liquid filling and pressing is realized.

摘要：【中文】本发明公开了一种翻边式管材充液成形密封装置及方法，包括分别用于密封管坯两端的两个密封冲头，密封冲头包括内冲头、外冲头和约束环；内冲头首端面为圆锥面，外冲头套设在内冲头的外部；外冲头包括外冲头座、外冲头密封头和密封镶块，外冲头座套设于内冲头的外部；外冲头密封头和密封镶块的内腔首端为锥形腔；密封时管端插入内冲头和外冲头前端间隙之中，内冲头圆锥面压入管坯端面实现刚性扩口，并且随着管坯插入深度的增加，间隙不断收小，管端与内外冲头密封段紧紧贴合，实现管端自密封；在内高压成形和管材充液压制中均能实现有效密封，且通过调整外冲头密封镶块数量和外冲头与内冲头之间间隙，可实现不同直径、不同壁厚管材的密封。 【EN】The invention discloses a flanging type pipe hydro-forming sealing device and a method, comprising two sealing punches which are respectively used for sealing two ends of a pipe blank, wherein each sealing punch comprises an inner punch, an outer punch and a restriction ring; the head end surface of the inner punch is a conical surface, and the outer punch is sleeved outside the inner punch; the outer punch comprises an outer punch seat, an outer punch sealing head and a sealing insert, and the outer punch seat is sleeved outside the inner punch; the head ends of the inner cavities of the outer punch sealing head and the sealing insert are conical cavities; when in sealing, the pipe end is inserted into the gap between the front ends of the inner punch and the outer punch, the conical surface of the inner punch is pressed into the end surface of the pipe blank to realize rigid flaring, and the gap is continuously reduced along with the increase of the insertion depth of the pipe blank, and the pipe end is tightly attached to the sealing sections of the inner punch and the outer punch to realize self sealing of the pipe end; effective sealing can be realized in internal high-pressure forming and pipe liquid filling pressing, and sealing of pipes with different diameters and different wall thicknesses can be realized by adjusting the number of sealing insert blocks of the outer punch and the clearance between the outer punch and the inner punch.

摘要：【中文】本发明公开一种变截面异形管件的充液压制成形装置，涉及管材成形制造技术领域，包括充液压制成形模具、双向随动密封装置和介质填充与压力控制系统；所述充液压制成形模具内用于放置管材，并对所述管材压制成形；所述双向随动密封装置用于对所述管材的两端进行随动密封；所述介质填充与压力控制系统包括介质填充系统和压力控制系统，所述介质填充系统内用于向所述管材内填充介质，所述压力控制系统用于对所述管材的内部支撑压力进行控制。本发明用于变截面异形管件的充液压制成形。 【EN】The invention discloses a liquid-filled press forming device for a variable-section special-shaped pipe fitting, which relates to the technical field of pipe forming and manufacturing, and comprises a liquid-filled press forming die, a bidirectional follow-up sealing device and a medium filling and pressure control system; the liquid-filled press forming die is used for placing a pipe and press forming the pipe; the bidirectional follow-up sealing device is used for performing follow-up sealing on two ends of the pipe; the medium filling and pressure control system comprises a medium filling system and a pressure control system, wherein the medium filling system is used for filling a medium into the pipe, and the pressure control system is used for controlling the internal supporting pressure of the pipe. The invention is used for the liquid filling press forming of the variable cross-section special-shaped pipe fitting.

摘要：【中文】本发明提供了NiAl基合金构件的成形方法，属于粉末冶金成形技术领域。本发明的成形方法包括以下步骤：将NiAl基合金粉末与黏结剂混合，对所得混合料进行破碎，得到注射料；将所述注射料注射成形，得到成形坯；将所述成形坯进行脱脂处理，得到脱脂坯；将所述脱脂坯进行真空烧结，得到NiAl基合金构件。本发明的成形方法适用于复杂形状的NiAl基合金构件，尤其适用于具有薄壁筒形类构件的成形，本发明的成形方法步骤简单，成本低廉且可实现近净成形，且得到的构件无焊缝，安全可靠性高。 【EN】The invention provides a forming method of a NiAl-based alloy component, belonging to the technical field of powder metallurgy forming. The forming method of the present invention comprises the steps of: mixing the NiAl-based alloy powder with a binder, and crushing the obtained mixture to obtain an injection material; injection molding the injection material to obtain a molded blank; degreasing the formed blank to obtain a degreased blank; and sintering the degreased blank in vacuum to obtain the NiAl-based alloy component. The forming method is suitable for forming the NiAl-based alloy component with the complex shape, particularly for forming the thin-wall cylindrical component, has simple steps and low cost, can realize near-net forming, and has no welding seam and high safety and reliability of the obtained component.

摘要：【中文】本发明公开一种基于液体体积加载的液压成形件回弹控制方法及系统，所述回弹控制方法包括：确定成形时模具胀形量；确定目标压力；根据成形时所述模具胀形量确定加载结束时管件内腔体积；根据所述目标压力和所述加载结束时管件内腔体积确定液体体积压缩补偿量；确定无压缩时液体体积增量；根据无压缩时液体体积增量以及所述液体体积压缩补偿量确定总液体体积增量按照所述总液体体积增量向管坯内充入液体，实现液压成形件回弹控制，获得满足设定尺寸精度要求的管件。本发明公开的液压成形件回弹控制方法避免了传统回弹补偿方法反复修模、周期长、成本高等问题，以及传统压力加载法在整形阶段压力波动导致成形件尺寸分散大、精度差等问题。 【EN】The invention discloses a rebound control method and a system of a hydraulic forming piece based on liquid volume loading, wherein the rebound control method comprises the following steps: determining the bulging amount of the die during forming; determining a target pressure; determining the volume of the inner cavity of the pipe fitting at the end of loading according to the bulging amount of the die during forming; determining the liquid volume compression compensation amount according to the target pressure and the volume of the inner cavity of the pipe fitting at the end of loading; determining the liquid volume increase in the absence of compression; and determining the total liquid volume increment according to the liquid volume increment in the non-compression state and the liquid volume compression compensation amount, and filling liquid into the tube blank according to the total liquid volume increment, so as to realize the rebound control of the hydraulic forming part and obtain the pipe fitting meeting the set size precision requirement. The method for controlling the resilience of the hydraulic forming part, disclosed by the invention, avoids the problems of repeated die repair, long period, high cost and the like of the traditional resilience compensation method and the problems of large size dispersion, poor precision and the like of the forming part caused by pressure fluctuation in the shaping phase of the traditional pressure loading method.

摘要：【中文】一种管材各向异性参数的确定方法，属于管材性能测试领域。该方法：一、沿管材轴向切取剖条试样，进行单向拉伸实验，获得管材轴向的屈服应力；二、对待测管材进行两组管材双向加载实验，加载路径为线性，记录应力比，测量对应加载条件下的应变增量比；三、建立应力比、应变增量比与各个方向屈服应力的关系；建立应力比、应变增量比与各个方向厚向异性系数的关系；五、利用步骤二中的应力比和应变增量比分别代入到三、四所建关系式中，通过解方程组得到各向异性参数：环向屈服应力、双等拉屈服应力、轴向厚向异性系数、环向厚向异性系数。本方法避免了管材在测试前产生塑性变形，以及预变形对各向异性参数的影响，确定的各向异性参数更准确。 【EN】A method for determining anisotropy parameters of a pipe belongs to the field of pipe performance testing. The method comprises the following steps: firstly, cutting a section bar sample along the axial direction of the pipe, and carrying out a unidirectional tensile experiment to obtain the axial yield stress of the pipe; performing two-group pipe bidirectional loading experiments on the pipe to be tested, recording the stress ratio, and measuring the strain increment ratio under the corresponding loading condition, wherein the loading path is linear; thirdly, establishing a relation between the stress ratio, the strain increment ratio and the yield stress in each direction; establishing the relationship between the stress ratio, the strain increment ratio and the thickness anisotropy coefficient in each direction; and fifthly, substituting the stress ratio and the strain increment ratio in the step two into the relational expressions established by the step three and the step four respectively, and obtaining anisotropic parameters by solving an equation set: hoop yield stress, double equal tension yield stress, axial thickness anisotropy coefficient and hoop thickness anisotropy coefficient. The method avoids the plastic deformation of the pipe before testing and the influence of the pre-deformation on the anisotropic parameters, and the determined anisotropic parameters are more accurate.

摘要：【中文】本申请公开了一种多晶硅外源碳的检测方法，包括在红外碳硫分析仪的坩埚上依次放入纯铁颗粒、多晶硅试样、锡颗粒和钨颗粒，其中所述锡颗粒和所述钨颗粒均匀覆盖在所述多晶硅试样的表面，加热至所述多晶硅试样完全燃烧；向所述红外碳硫分析仪中通入氧气使所述多晶硅试样中的碳氧化为二氧化碳；去除所述二氧化碳中混有的其他气体；将所述二氧化碳导入碳检测池测定外源碳的含量。上述多晶硅外源碳的检测方法，能够准确、快速、高灵敏度的检测出多晶硅中的外源碳的含量，抗干扰能力更强，精密度更高。 【EN】The application discloses a method for detecting polycrystalline silicon exogenous carbon, which comprises the steps of sequentially placing pure iron particles, a polycrystalline silicon sample, tin particles and tungsten particles on a crucible of an infrared carbon-sulfur analyzer, wherein the tin particles and the tungsten particles uniformly cover the surface of the polycrystalline silicon sample, and heating until the polycrystalline silicon sample is completely combusted; introducing oxygen into the infrared carbon-sulfur analyzer to oxidize carbon in the polycrystalline silicon sample into carbon dioxide; removing other gases mixed in the carbon dioxide; and introducing the carbon dioxide into a carbon detection cell to determine the content of the exogenous carbon. The method for detecting the polycrystalline silicon exogenous carbon can accurately, quickly and highly sensitively detect the content of the exogenous carbon in the polycrystalline silicon, and has stronger anti-jamming capability and higher precision.