WO2020134075A1 - 针对模具钢的预处理装置及预处理方法 - Google Patents

针对模具钢的预处理装置及预处理方法 Download PDF

Info

Publication number
WO2020134075A1
WO2020134075A1 PCT/CN2019/098592 CN2019098592W WO2020134075A1 WO 2020134075 A1 WO2020134075 A1 WO 2020134075A1 CN 2019098592 W CN2019098592 W CN 2019098592W WO 2020134075 A1 WO2020134075 A1 WO 2020134075A1
Authority
WO
WIPO (PCT)
Prior art keywords
steel workpiece
powder
die steel
mold steel
workpiece
Prior art date
Application number
PCT/CN2019/098592
Other languages
English (en)
French (fr)
Inventor
舒丹
Original Assignee
太仓岭川实业有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 太仓岭川实业有限公司 filed Critical 太仓岭川实业有限公司
Priority to DE212019000156.4U priority Critical patent/DE212019000156U1/de
Priority to JP2021600005U priority patent/JP3233854U/ja
Publication of WO2020134075A1 publication Critical patent/WO2020134075A1/zh

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/004—Heating the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0239—Lubricating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0239—Lubricating
    • B21B45/0245—Lubricating devices
    • B21B45/0248—Lubricating devices using liquid lubricants, e.g. for sections, for tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0239—Lubricating
    • B21B45/0245—Lubricating devices
    • B21B45/0263—Lubricating devices using solid lubricants

Definitions

  • the invention relates to the field of die steel processing, and in particular to a pretreatment device and method for die steel.
  • Die steel is often used to make cold die, hot die or die-casting die, which has greater hardness and is therefore not easy to process. During processing, the equipment acting on it is likely to slip and shift.
  • the prior art often uses heat treatment to reduce the difficulty of processing die steel.
  • the die steel itself has thermal fatigue characteristics.
  • the heat treatment during the processing especially the quenching temperature of the heat treatment, will affect the austenite grain size of the cutting surface of the die steel, the solid solubility of the alloy elements, and the uniformity of the workpiece surface structure, which will affect the die The overall thermal fatigue performance of the finished steel workpiece.
  • the temperature of the workpiece decreases sharply after leaving the heat treatment device during the processing of the existing mold steel workpiece, which will affect the surface crystal structure.
  • the dissimilation becomes an inward thermal metamorphic layer, which affects the stress strength of the workpiece and makes the The workpiece is easily deformed and cracked.
  • the object of the present invention is to provide a pretreatment device and pretreatment method for die steel.
  • a pretreatment device for die steel including: a heat treatment device for heat treating the die steel workpiece to be processed to 250°C to 350°C, and outputting the heat treated die steel workpiece; roller conveyor , Connected to the output port of the heat treatment device, is used to drive the heat-treated die steel workpiece to the subsequent cutting processing device;
  • the roller conveyor belt includes rollers, bearings, and a frame; the inner wall of the roller is evenly provided with Ceramic heating element; one end of the roller is connected to one end of the bearing, the other end of the bearing is connected to a motor for driving the roller to rotate in the frame; the other end of the roller is connected to an electrode connection cylinder, It includes two inner and outer metal electrode rings, the metal electrode ring of the inner ring protrudes from the metal electrode ring of the outer ring, and the two metal electrode rings are respectively stably and electrically connected to the two electrodes of the ceramic heating element.
  • a first contact piece and a second contact piece that are in stable electrical contact with the two rings of metal electrode rings are respectively provided inside the frame, and the first contact piece and the second contact piece are separated by an insulating material, and the first The contact piece and the second contact piece respectively provide stable power supply to the two electrodes of the ceramic heating body through the two metal electrode rings.
  • the ceramic heating body uniformly provides the first temperature range to the outer wall of the roller Constant temperature, which slowly anneales the heat-treated mold steel workpiece to the first temperature range on the roller conveyor belt and maintains the temperature;
  • a medium nozzle is provided above the roller conveyor belt at a position away from the heat treatment device for Spraying a liquid medium on the surface of the die steel workpiece annealed to the first temperature range;
  • the liquid medium is an oily medium heated to the first temperature range, and the metal powder is also mixed in the oily medium, and the metal powder includes nanoscale Any one of iron powder, rhenium powder, titanium powder, tungsten powder, manganese powder, chromium powder, magnesium powder or a mixture thereof;
  • the rolling mill is arranged behind the medium nozzle relative to the movement direction of the die steel workpiece The end includes alternately disposed horizontal rolling mills and vertical rolling mills, and the spacing between the rolls in the rolling mill is between 80% and 90% of the size of the mold steel workpiece.
  • the first temperature range reaches at least 250°C.
  • the roller conveyor belt is provided with an inclination angle between 10° and 20° above the horizontal plane; the angle at which the liquid nozzle sprays the liquid medium is to move along the mold steel workpiece Orientation, 15° down with respect to the horizontal.
  • the ceramic heating element is an MCH ceramic heating element.
  • a groove body is further provided under the roller conveyor, and the width of the groove body is smaller than the length of the roller and larger than the size of the mold steel workpiece.
  • the depth is higher than the height of the two-layer roller conveyor belt, the side of the trough is provided with a through hole for the roller to pass through, and the inner side of the trough is also provided with a reflective coating for reflecting the ceramic heating Heat emitted from the body to maintain the temperature of the mold steel workpiece.
  • a pretreatment method for mold steel is also proposed.
  • the steps include:
  • Step A1 heat-treating the mold steel workpiece to be processed to 250°C to 350°C, and output the heat-treated mold steel workpiece;
  • Step A2 setting ceramic heating elements on the upper and lower surfaces of the output mold steel workpiece, which are emitted by the ceramic heating element The temperature of the mold steel workpiece is maintained at 250°C or above, so that the mold steel workpiece is slowly annealed at an annealing rate not exceeding 30°C per hour;
  • Step A3 spraying the surface of the mold steel workpiece before rolling Liquid medium; the liquid medium is an oily medium heated to 250° C.
  • the oily medium is further mixed with metal powder, the metal powder includes nano-level iron powder, rhenium powder, titanium powder, tungsten powder, manganese powder , Chromium powder, magnesium powder or a mixture of them; Step A4, the mold steel workpiece is subjected to a horizontal rolling process and a vertical rolling process, during the rolling process, the The spacing between the rolls of the rolling mill is between 80% and 90% of the size of the die steel workpiece.
  • the angle of the liquid nozzle ejected by the media nozzle is inclined at an angle between 25° and 35° relative to the moving direction of the mold steel workpiece.
  • the invention maintains the mold steel workpiece to be processed within the first temperature range by the ceramic heating element provided on the roller conveyor, thereby ensuring that the crystal properties of the mold steel workpiece surface will not change due to sudden changes in temperature.
  • the invention also sprays the liquid medium containing nano metal powder through the medium nozzle to the part of the workpiece surface that is about to contact the rolling mill. Therefore, during the rolling process of the mold steel of the present invention, the medium can be used to prevent the mold steel workpiece from forming austenite during the rolling deformation and reduce the thickness of the shearing quality layer.
  • the rolling process of the present invention performs low-strength rolling on two mutually perpendicular and balanced steel mold workpieces, and the spacing between the rolls is between 80% and 90% of the size of the mold steel workpiece .
  • part of the mold steel workpiece can be discharged from the carbon rolling between the crystals during the rolling process, so that the workpiece has better mechanical strength and thermal strain performance in the subsequent processing process, improve its service life, and effectively Prevent deformation and cracking of the workpiece.
  • the metal powder of the present invention focuses on the selection of nano powders such as iron, rhenium, titanium, tungsten, manganese, chromium, magnesium, etc., using its role with the metal bond electrode on the surface of the die steel, in the rolling A new dense protective layer is formed on the surface.
  • the protective layer is integrated into the surface of the austenite or metamorphic layer formed on the surface of the model steel workpiece through the rolling process. Due to the fusion effect of the nano-sized metal particles, the physical properties of the austenite or metamorphic layer are changed, which greatly improves the hardness and brittleness of the workpiece surface, making it difficult to deform and crack, and easier to process.
  • FIG. 1 is a schematic diagram of the overall structure of a pretreatment device for mold steel according to the present invention
  • FIG. 2 is a schematic diagram of the connection relationship between the electrode connection barrel and the contact piece in the pretreatment device for mold steel of the present invention.
  • connection in the present invention may be a direct connection between components or an indirect connection between components through other components.
  • front and back in the present invention means that when the user is facing the device, the front of the user is the front and the rear of the user is the rear.
  • FIG. 1 is a pretreatment device for die steel according to the present invention, which includes:
  • the heat treatment device 71 is used to heat-treat the mold steel workpiece to be processed to 250°C to 350°C, and output the heat-treated mold steel workpiece.
  • the roller conveyor 72 is connected to the output port of the heat treatment device 71, and is used to drive the heat-treated mold steel workpiece to the post-stage cutting processing device;
  • the roller conveyor 72 includes a roller 73, a bearing 74, and a frame 75; the inner wall of the roller is uniform A ceramic heating element is provided; one end of the roller 73 is connected to one end of the bearing 74, and the other end of the bearing 74 is connected to a motor for driving the roller to rotate in the frame 75; wherein the roller conveyor belt is provided with 10° above horizontal
  • the inclination range can ensure the driving of the workpiece while increasing the spraying area as much as possible to improve the uniformity of the metal powder spraying.
  • the other end of the roller 73 is connected with an electrode connection cylinder 76, which includes two inner and outer metal electrode rings.
  • the inner metal electrode ring protrudes from the outer metal electrode ring.
  • the two metal electrode rings are respectively connected to the MCH
  • the two electrodes of the ceramic heating element are electrically connected stably, and the frame 75 is provided with a first contact piece 81 and a second contact piece 82 which are in stable electrical contact with two rings of metal electrode rings, and one of the first contact piece and the second contact piece
  • the first contact piece and the second contact piece respectively provide stable power supply to the two electrodes of the ceramic heating body through two metal electrode rings.
  • the ceramic heating body uniformly provides a range of at least 250°C to the outer wall of the roller
  • the constant temperature of the heat-treated die steel workpiece on the roller conveyor 72 is slowly annealed to a range of at least 250°C and maintained at this temperature.
  • a groove body is also provided below the roller conveyor belt, the width of the groove body is smaller than the length of the roller and larger than the size of the mold steel workpiece, and the depth of the groove body is higher than the two
  • Media nozzle 77 which is located above the roller conveyor 72 and away from the heat treatment device 71, is used to spray the liquid medium onto the surface of the mold steel workpiece annealed to the first temperature range; the liquid medium is an oily medium heated to the first temperature range, oily Metal powder is also mixed in the medium.
  • the metal powder includes any one of nano-level iron powder, rhenium powder, titanium powder, tungsten powder, manganese powder, chromium powder, magnesium powder or a mixture thereof.
  • the rolling mill 78 is arranged at the rear end of the medium nozzle 77 relative to the moving direction of the die steel workpiece, and includes alternately arranged horizontal rolling mills and vertical rolling mills.
  • the distance between the rolls in the rolling mill is 80% of the size of the mold steel workpiece To 90%.
  • the following pretreatment steps can be realized by using the above-mentioned device, thereby ensuring the surface strength of the workpiece during processing.
  • the mold steel workpiece to be processed is heat-treated to 250°C to 350°C, and the heat-treated mold steel workpiece is output.
  • ceramic heating elements are provided on the upper and lower surfaces of the die steel workpiece after output, and the temperature radiated by the ceramic heating element keeps the temperature of the die steel workpiece at 250°C or above, so that the die steel workpiece is slowly annealed and annealed The rate does not exceed 30°C per hour.
  • a liquid medium is sprayed onto the surface of the die steel work piece; the liquid medium is an oily medium heated to 250° C.
  • the oily medium is further mixed with metal powder, the metal powder includes nano-scale Any one of iron powder, rhenium powder, titanium powder, tungsten powder, manganese powder, chromium powder, magnesium powder or a mixture thereof.
  • the mold steel workpiece is subjected to a horizontal rolling process and a vertical rolling process.
  • the distance between the rolls of the rolling mill is within the size of the mold steel workpiece Between 80% and 90%.
  • the surface of the workpiece pretreated by this rolling is precipitated by carbon rolling, and nano powders such as iron, rhenium, titanium, tungsten, manganese, chromium, and magnesium act on the metal bond electrode of the mold steel surface to form a new dense on the rolling surface Protective layer
  • This protective layer is fused into the surface of the austenite or modified layer formed on the surface of the model steel workpiece through the rolling process.
  • the physical properties of the austenite or metamorphic layer on the surface of the die steel workpiece after pretreatment of the invention are changed, which greatly improves the hardness and brittleness of the surface of the workpiece, making it difficult to deform and crack, and easier to process.
  • the invention maintains the mold steel workpiece to be processed within the first temperature range by the ceramic heating element provided on the roller conveyor, thereby ensuring that the crystal properties of the mold steel workpiece surface will not change due to sudden changes in temperature.
  • the invention also sprays the liquid medium containing nano metal powder through the medium nozzle to the part of the workpiece surface that is about to contact the rolling mill. Therefore, during the rolling process of the mold steel of the present invention, the medium can be used to prevent the mold steel workpiece from forming austenite during the rolling deformation, reducing the thickness of the shear deformation layer, which is beneficial to subsequent processing.

Abstract

一种针对模具钢的预处理装置，包括热处理装置（71）、滚轮传送带（72）、介质喷嘴（77）、轧机（78），滚轮传送带包括滚轮（73）、轴承（74）以及框架（75）。一种针对模具钢的预处理方法，对待加工的模具钢工件进行热处理，在热处理输出后的模具钢工件上下表面设置陶瓷发热体，使模具钢工件缓慢退火，在轧制之前向模具钢工件的表面喷涂液体介质，液体介质为油性介质，油性介质内还混合有金属纳米粉末，对模具钢工件进行轧制。通过设置在滚轮传送带上的陶瓷发热体维持模具钢工件在一定温度范围内，保证模具钢工件表面晶体性状不会因温度突变而发生改变。通过介质喷嘴对工件表面喷涂包含有纳米金属粉末的液体介质，避免模具钢工件在轧制变形过程中形成奥氏体，减少切变质层厚度。

Description

针对模具钢的预处理装置及预处理方法 技术领域
本发明涉及模具钢加工领域，尤其涉及一种针对模具钢的预处理装置及预处理方法。
背景技术
模具钢常用于制造冷冲模、热冲模或压铸模，其具有较大的硬度，因而不易加工。加工过程中，作用于其上的设备容易打滑，发生偏移。
为方便切割，现有技术经常采用热处理的方式降低模具钢加工难度。然而模具钢本身具有热疲劳特性，加工过程中的热处理，尤其热处理淬火温度会影响模具钢切割面的奥氏体晶粒大小、合金元素的固溶度以及工件表面的组织均匀性，进而影响模具钢工件成品的整体的热疲劳性能。
尤其，现有模具钢工件加工过程中离开热处理装置之后工件温度急剧降低，会影响其表面结晶结构，时结晶结构发生异化，异化为向内的热变质层，影响工件应力强度，使加工中的工件易变形、开裂。
发明内容
为了解决现有技术存在的不足，本发明的目的在于提供一种针对模具钢的预处理装置、及预处理方法。
首先，为实现上述目的，提出一种针对模具钢的预处理装置，包括：热处理装置，用于对待加工的模具钢工件热处理至250℃至350℃，并输出热处理后的模具钢工件；滚轮传送带，连接于所述热处理装置的输出口处，用于驱动热处理后的模具钢工件向后级的切割加工装置移动；所述滚轮传送带包括滚轮、轴承以及框架；所述滚轮的内壁均匀的设置有陶瓷发热体；所述滚轮的一端与轴承的一端连接，所述轴承的另一端连接有电机，用于驱动所述滚轮在所述框架内转动；所述滚轮的另一端连接有电极连接筒，其包括内外两圈金属电极圈，内圈的所述金属电极圈突出于外圈的金属电极圈，所述两个金属电极圈分别与所述陶瓷发热体的两个电极稳定的电连接，所述框架内部分别设置有与所述两圈金属电极圈稳定电接触的第一触片和第二触片，所述第一触片和第二触片之间由绝缘材料分隔，所述第一触片和第二触片分别通过所述两圈金属电极圈向所述陶瓷发热体的两个电极稳定供电，供电后所述陶瓷发热体向所述滚轮的外壁均匀的提供第一温度范围的恒定温度，使热处理后的所述模具钢工件在所述滚轮传送带上缓慢退火至第一温度范围并维持该温度；介质喷嘴，设置于所述滚轮传送带上方远离所述热处理装置的位置，用于向退火至第一温度范围的模具钢工件表面喷涂液体介质；所述液体介质为被 加热至第一温度范围的油性介质，所述油性介质内还混合由金属粉末，所述金属粉末包括纳米级别的铁粉、铼粉、钛粉、钨粉、锰粉、铬粉、镁粉中的任一种或其混合；轧机，相对于所述模具钢工件的移动方向设置于所述介质喷嘴的后端，包括交替设置的水平方向的轧机和竖直方向的轧机，所述轧机中轧辊之间的间距在所述模具钢工件尺寸的80％至90％之间。
可选的，上述的预处理装置中，所述第一温度范围至少达到250℃。
可选的，上述的预处理装置中，所述滚轮传送带设置有高于水平面的10°至20°之间的倾斜角；所述介质喷嘴喷出液体介质的角度为沿所述模具钢工件移动方向，相对于水平面向下15°。
可选的，上述的预处理装置中，所述陶瓷发热体为MCH陶瓷发热体。
可选的，上述的预处理装置中，所述滚轮传送带的下方还设置有槽体，所述槽体的宽度小于所述滚轮的长度而大于所述模具钢工件的尺寸，所述槽体的深度高于所述两层滚轮传送带的高度，所述槽体的侧面设置有供所述滚轮穿过的通孔，所述槽体的内侧还设置有反射涂层，用于反射所述陶瓷发热体所散发出来的热量，以保持所述模具钢工件的温度。
其次，为实现上述目的，还提出一种针对模具钢的预处理方法，其步骤包括：
步骤A1，对待加工的模具钢工件热处理至250℃至350℃，输出热处理后的模具钢工件；步骤A2，在输出后的模具钢工件的上下表面设置陶瓷发热体，所述陶瓷发热体所散发的温度保持所述模具钢工件的温度在250℃或以上，使所述模具钢工件缓慢退火，退火速率不超过30℃每小时；步骤A3，在轧制之前向所述模具钢工件的表面喷涂液体介质；所述液体介质为被加热至250℃的油性介质，所述油性介质内还混合由金属粉末，所述金属粉末包括纳米级别的铁粉、铼粉、钛粉、钨粉、锰粉、铬粉、镁粉中的任一种或其混合；步骤A4，对所述模具钢工件进行水平方向的轧制处理和竖直方向的轧制处理，所述轧制处理的过程中，所述轧机的各轧辊之间的间距在所述模具钢工件尺寸的80％至90％之间。
可选的，上述的预处理方法中，所述介质喷嘴喷出液体介质的角度相对所述模具钢工件移动方向成25°至35°之间的倾斜角。
有益效果
本发明通过设置在滚轮传送装置上是陶瓷发热体维持待加工的模具钢工件在第一温度范围内，由此，可保证模具钢工件表面晶体性状不会因温度的突变而改变。同时，本发明还通过介质喷嘴对工件表面即将与轧机相接触的部位喷涂包含有纳米金属粉末的液体介质。由此，本发明的模具钢在进行轧制的过程中，可利用介质避免模具钢工件在轧制变形过程中形成奥氏体， 减少切变质层厚度。
进一步，本发明的轧制工艺对模具钢工件的两个相互垂直的唯独均衡的进行低强度的轧制，其轧辊之间的间距在所述模具钢工件尺寸的80％至90％之间。由此可在轧制过程中排出模具钢工件中的部分游离于结晶之间的碳轧制，使得工件在后续的加工过程中具备更佳的机械强度和热应变性能，提高其使用寿命，有效防止工件变形、开裂。
进一步，为提高模具钢的性能，本发明的金属粉末中着重选择铁、铼、钛、钨、锰、铬、镁等纳米粉末，利用其与模具钢表面金属键电极的作用，在所述轧制表面上形成新的致密保护层该保护层通过轧制过程融合入模型钢工件表面所形成的奥氏体或变质层表面。纳米级金属颗粒由于该融合作用，使得奥氏体或变质层的物理性质改变，极大的改善工件表面的硬度和脆性，使其不易变形开裂，更易于加工。
本发明的其它特征和优点将在随后的说明书中阐述，并且，部分地从说明书中变得显而易见，或者通过实施本发明而了解。
附图说明
附图用来提供对本发明的进一步理解，并且构成说明书的一部分，并与本发明的实施例一起，用于解释本发明，并不构成对本发明的限制。在附图中：
图1为根据本发明的针对模具钢的预处理装置整体结构的示意图；
图2为本发明的针对模具钢的预处理装置中电极连接筒与触片连接关系的示意图。
具体实施方式
以下结合附图对本发明的优选实施例进行说明，应当理解，此处所描述的优选实施例仅用于说明和解释本发明，并不用于限定本发明。
为使本发明实施例的目的和技术方案更加清楚，下面将结合本发明实施例的附图，对本发明实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本发明的一部分实施例，而不是全部的实施例。基于所描述的本发明的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本发明保护的范围。
本技术领域技术人员可以理解，除非另外定义，这里使用的所有术语(包括技术术语和科学术语)具有与本发明所属领域中的普通技术人员的一般理解相同的意义。还应该理解的是，诸如通用字典中定义的那些术语应该被理解为具有与现有技术的上下文中的意义一致的意义，并且除非像这里一样定义，不会用理想化或过于正式的含义来解释。
本发明中所述的“连接”的含义可以是部件之间的直接连接也可以是部件间通过其它部件 的间接连接。
本实用新型中所述的“上、下”的含义是使用者正对本装置时，使用者的上方为上，使用者的下方为下。
本发明中所述的“前、后”的含义是使用者正对本装置时，使用者的前方为前，使用者的后方为后。
图1为根据本发明的一种针对模具钢的预处理装置，其包括：
热处理装置71，用于对待加工的模具钢工件热处理至250℃至350℃，并输出热处理后的模具钢工件。
滚轮传送带72，连接于热处理装置71的输出口处，用于驱动热处理后的模具钢工件向后级的切割加工装置移动；滚轮传送带72包括滚轮73、轴承74以及框架75；滚轮的内壁均匀的设置有陶瓷发热体；滚轮73的一端与轴承74的一端连接，轴承74的另一端连接有电机，用于驱动滚轮在框架75内转动；其中所述滚轮传送带设置有高于水平面的10°至20°之间的倾斜角，以方便后级的所述介质喷嘴喷出液体介质的角度为沿所述模具钢工件移动方向，相对于模具钢工件向下保持在25°至35°之间的倾角范围，由此可保证对工件的驱动同时尽可能的增加喷涂面积，提高金属粉末喷涂的均匀度。
图2中所示，滚轮73的另一端连接有电极连接筒76，其包括内外两圈金属电极圈，内圈的金属电极圈突出于外圈的金属电极圈，两个金属电极圈分别与MCH陶瓷发热体的两个电极稳定的电连接，框架75内部分别设置有与两圈金属电极圈稳定电接触的第一触片81和第二触片82，第一触片和第二触片之间由绝缘材料分隔，第一触片和第二触片分别通过两圈金属电极圈向陶瓷发热体的两个电极稳定供电，供电后陶瓷发热体向滚轮的外壁均匀的提供至少250℃的范围的恒定温度，使热处理后的模具钢工件在滚轮传送带72上缓慢退火至至少250℃的范围并维持该温度。
为保证恒温效果，所述滚轮传送带的下方还设置有槽体，所述槽体的宽度小于所述滚轮的长度而大于所述模具钢工件的尺寸，所述槽体的深度高于所述两层滚轮传送带的高度，所述槽体的侧面设置有供所述滚轮穿过的通孔，所述槽体的内侧还设置有反射涂层，用于反射所述陶瓷发热体所散发出来的热量，以保持所述模具钢工件的温度。
介质喷嘴77，设置于滚轮传送带72上方远离热处理装置71的位置，用于向退火至第一温度范围的模具钢工件表面喷涂液体介质；液体介质为被加热至第一温度范围的油性介质，油性介质内还混合由金属粉末，金属粉末包括纳米级别的铁粉、铼粉、钛粉、钨粉、锰粉、铬粉、 镁粉中的任一种或其混合。
轧机78，相对于模具钢工件的移动方向设置于介质喷嘴77的后端，包括交替设置的水平方向的轧机和竖直方向的轧机，轧机中轧辊之间的间距在模具钢工件尺寸的80％至90％之间。
由此，利用上述的装置可实现如下的预处理步骤，进而保证工件加工时的表面强度。
首先，对待加工的模具钢工件热处理至250℃至350℃，输出热处理后的模具钢工件。
然后，在输出后的模具钢工件的上下表面设置陶瓷发热体，所述陶瓷发热体所散发的温度保持所述模具钢工件的温度在250℃或以上，使所述模具钢工件缓慢退火，退火速率不超过30℃每小时。
随后，在轧制之前向所述模具钢工件的表面喷涂液体介质；所述液体介质为被加热至250℃的油性介质，所述油性介质内还混合由金属粉末，所述金属粉末包括纳米级别的铁粉、铼粉、钛粉、钨粉、锰粉、铬粉、镁粉中的任一种或其混合。
最后，对所述模具钢工件进行水平方向的轧制处理和竖直方向的轧制处理，所述轧制处理的过程中，所述轧机的各轧辊之间的间距在所述模具钢工件尺寸的80％至90％之间。由此预处理的工件，其表面碳轧制析出，铁、铼、钛、钨、锰、铬、镁等纳米粉末与模具钢表面金属键电极作用，在所述轧制表面上形成新的致密保护层该保护层通过轧制过程融合入模型钢工件表面所形成的奥氏体或变质层表面。本发明预处理后的模具钢工件表面的奥氏体或变质层的物理性质改变，极大的改善工件表面的硬度和脆性，使其不易变形开裂，更易于加工。
本发明通过设置在滚轮传送装置上是陶瓷发热体维持待加工的模具钢工件在第一温度范围内，由此，可保证模具钢工件表面晶体性状不会因温度的突变而改变。同时，本发明还通过介质喷嘴对工件表面即将与轧机相接触的部位喷涂包含有纳米金属粉末的液体介质。由此，本发明的模具钢在进行轧制的过程中，可利用介质避免模具钢工件在轧制变形过程中形成奥氏体，减少切变质层厚度，有利于后续加工处理。
本领域普通技术人员可以理解：以上所述仅为本发明的优选实施例而已，并不用于限制本发明，尽管参照前述实施例对本发明进行了详细的说明，对于本领域的技术人员来说，其依然可以对前述各实施例记载的技术方案进行修改，或者对其中部分技术特征进行等同替换。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (7)

  1. 一种针对模具钢的预处理装置，其特征在于，包括：
    热处理装置(71)，用于对待加工的模具钢工件热处理至250℃至350℃，并输出热处理后的模具钢工件；
    滚轮传送带(72)，连接于所述热处理装置(71)的输出口处，用于驱动热处理后的模具钢工件向后级的切割加工装置移动；所述滚轮传送带(72)包括滚轮(73)、轴承(74)以及框架(75)；所述滚轮的内壁均匀的设置有陶瓷发热体；所述滚轮(73)的一端与轴承(74)的一端连接，所述轴承(74)的另一端连接有电机，用于驱动所述滚轮在所述框架(75)内转动；所述滚轮(73)的另一端连接有电极连接筒(76)，其包括内外两圈金属电极圈，内圈的所述金属电极圈突出于外圈的金属电极圈，所述两个金属电极圈分别与所述陶瓷发热体的两个电极稳定的电连接，所述框架(75)内部分别设置有与所述两圈金属电极圈稳定电接触的第一触片(81)和第二触片(82)，所述第一触片和第二触片之间由绝缘材料分隔，所述第一触片和第二触片分别通过所述两圈金属电极圈向所述陶瓷发热体的两个电极稳定供电，供电后所述陶瓷发热体向所述滚轮的外壁均匀的提供第一温度范围的恒定温度，使热处理后的所述模具钢工件在所述滚轮传送带(72)上缓慢退火至第一温度范围并维持该温度；
    介质喷嘴(77)，设置于所述滚轮传送带(72)上方远离所述热处理装置(71)的位置，用于向退火至第一温度范围的模具钢工件表面喷涂液体介质；所述液体介质为被加热至第一温度范围的油性介质，所述油性介质内还混合由金属粉末，所述金属粉末包括纳米级别的铁粉、铼粉、钛粉、钨粉、锰粉、铬粉、镁粉中的任一种或其混合；
    轧机(78)，相对于所述模具钢工件的移动方向设置于所述介质喷嘴(77)的后端，包括交替设置的水平方向的轧机和竖直方向的轧机，所述轧机中轧辊之间的间距在所述模具钢工件尺寸的80％至90％之间。
  2. 如权利要求1所述的针对模具钢的预处理装置，其特征在于，所述第一温度范围至少达到250℃。
  3. 如权利要求2所述的针对模具钢的预处理装置，其特征在于，所述滚轮传送带(72)设置有高于水平面的10°至20°之间的倾斜角；
    所述介质喷嘴(77)喷出液体介质的角度为沿所述模具钢工件移动方向，相对于水平面向下15°。
  4. 如权利要求2-3所述的针对模具钢的预处理装置，其特征在于，所述陶瓷发热体为MCH 陶瓷发热体。
  5. 如权利要求2至4所述的针对模具钢的预处理装置，其特征在于，所述滚轮传送带(72)的下方还设置有槽体(79)，所述槽体(79)的宽度小于所述滚轮(73)的长度而大于所述模具钢工件的尺寸，所述槽体(79)的深度高于所述两层滚轮传送带的高度，所述槽体(79)的侧面设置有供所述滚轮(73)穿过的通孔，所述槽体(79)的内侧还设置有反射涂层，用于反射所述陶瓷发热体所散发出来的热量，以保持所述模具钢工件的温度。
  6. 一种针对模具钢的预处理方法，其特征在于，步骤包括：
    步骤A1，对待加工的模具钢工件热处理至250℃至350℃，输出热处理后的模具钢工件；
    步骤A2，在输出后的模具钢工件的上下表面设置陶瓷发热体，所述陶瓷发热体所散发的温度保持所述模具钢工件的温度在250℃或以上，使所述模具钢工件缓慢退火，退火速率不超过30℃每小时；
    步骤A3，在轧制之前向所述模具钢工件的表面喷涂液体介质；所述液体介质为被加热至250℃的油性介质，所述油性介质内还混合由金属粉末，所述金属粉末包括纳米级别的铁粉、铼粉、钛粉、钨粉、锰粉、铬粉、镁粉中的任一种或其混合；
    步骤A4，对所述模具钢工件进行水平方向的轧制处理和竖直方向的轧制处理，所述轧制处理的过程中，所述轧机的各轧辊之间的间距在所述模具钢工件尺寸的80％至90％之间。
  7. 如权利要求6所述的针对模具钢的预处理方法，其特征在于，所述介质喷嘴(77)喷出液体介质的角度相对所述模具钢工件移动方向成25°至35°之间的倾斜角。
PCT/CN2019/098592 2018-12-28 2019-07-31 针对模具钢的预处理装置及预处理方法 WO2020134075A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE212019000156.4U DE212019000156U1 (de) 2018-12-28 2019-07-31 Eine Vorbehandlungsvorrichtung für Matrizenstahl
JP2021600005U JP3233854U (ja) 2018-12-28 2019-07-31 金型鋼に対する前処理装置及び前処理方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811630220.7A CN109530462B (zh) 2018-12-28 2018-12-28 针对模具钢的预处理装置及预处理方法
CN201811630220.7 2018-12-28

Publications (1)

Publication Number Publication Date
WO2020134075A1 true WO2020134075A1 (zh) 2020-07-02

Family

ID=65831015

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/098592 WO2020134075A1 (zh) 2018-12-28 2019-07-31 针对模具钢的预处理装置及预处理方法

Country Status (4)

Country Link
JP (1) JP3233854U (zh)
CN (1) CN109530462B (zh)
DE (1) DE212019000156U1 (zh)
WO (1) WO2020134075A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109530462B (zh) * 2018-12-28 2023-12-22 太仓成和信精密科技有限公司 针对模具钢的预处理装置及预处理方法
CN109573514B (zh) * 2018-12-28 2023-12-26 太仓成和信精密科技有限公司 用于模具钢加工设备的传动装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6191320A (ja) * 1984-10-12 1986-05-09 Horikiri Bane Seisakusho:Kk 被加工物の保温装置
JP2007134242A (ja) * 2005-11-11 2007-05-31 Pioneer Electronic Corp 表示パネルの製造方法
CN101792847A (zh) * 2009-02-02 2010-08-04 中冶赛迪工程技术股份有限公司 一种钢板轧制后直接热处理工艺技术
CN105018923A (zh) * 2014-04-29 2015-11-04 宝山钢铁股份有限公司 一种覆钛低碳钢复合板制备方法
CN207288355U (zh) * 2017-09-04 2018-05-01 苏州市富耐佳科技有限公司 一种合金热带轧机
CN208066938U (zh) * 2017-08-07 2018-11-09 上海利正卫星应用技术有限公司 一种镁合金轧制时板带在线加热装置
CN109530462A (zh) * 2018-12-28 2019-03-29 太仓新思成模具钢有限公司 针对模具钢的预处理装置及预处理方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3557899B2 (ja) * 1998-04-24 2004-08-25 住友金属工業株式会社 ステンレス鋼板の冷間圧延方法
CN100352964C (zh) * 2005-04-29 2007-12-05 宝山钢铁股份有限公司 高合金冷作模具钢的生产工艺
CN106399643B (zh) * 2016-11-14 2019-01-15 成都先进金属材料产业技术研究院有限公司 模具钢的热处理方法
CN107779746B (zh) * 2017-09-29 2020-04-10 上海交通大学 超高强度高韧性耐蚀耐氧化超细晶合金钢及其制备方法
CN108018500B (zh) * 2017-12-08 2019-12-03 河冶科技股份有限公司 冷热兼作模具钢及其制造工艺
CN209792271U (zh) * 2018-12-28 2019-12-17 太仓新思成模具钢有限公司 针对模具钢的预处理装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6191320A (ja) * 1984-10-12 1986-05-09 Horikiri Bane Seisakusho:Kk 被加工物の保温装置
JP2007134242A (ja) * 2005-11-11 2007-05-31 Pioneer Electronic Corp 表示パネルの製造方法
CN101792847A (zh) * 2009-02-02 2010-08-04 中冶赛迪工程技术股份有限公司 一种钢板轧制后直接热处理工艺技术
CN105018923A (zh) * 2014-04-29 2015-11-04 宝山钢铁股份有限公司 一种覆钛低碳钢复合板制备方法
CN208066938U (zh) * 2017-08-07 2018-11-09 上海利正卫星应用技术有限公司 一种镁合金轧制时板带在线加热装置
CN207288355U (zh) * 2017-09-04 2018-05-01 苏州市富耐佳科技有限公司 一种合金热带轧机
CN109530462A (zh) * 2018-12-28 2019-03-29 太仓新思成模具钢有限公司 针对模具钢的预处理装置及预处理方法

Also Published As

Publication number Publication date
DE212019000156U1 (de) 2020-08-11
CN109530462B (zh) 2023-12-22
JP3233854U (ja) 2021-09-09
CN109530462A (zh) 2019-03-29

Similar Documents

Publication Publication Date Title
JP6636512B2 (ja) 冷間圧延および再結晶焼鈍平鋼製品、ならびにそれを製造するための方法
WO2020134075A1 (zh) 针对模具钢的预处理装置及预处理方法
CN111058035B (zh) 铜及铜合金表面激光熔覆制备耐磨耐蚀合金涂层的工艺及合金涂层
WO2022174766A1 (zh) 可用于激光选区熔化3d打印的钛合金粉末、激光选区熔化钛合金及其制备
CN105779861B (zh) 一种耐磨高钒氮高速钢型钢轧辊及其制造方法
CN112063951A (zh) 一种镁铝合金表面激光熔覆自润滑涂层及其施工方法
CN104264086A (zh) 利用脉冲电流促进两相钛合金带材相变强韧化方法及带材
WO2016140296A1 (ja) ブリケットロールおよびその製造方法
TW201623658A (zh) 爐輥及其製造方法
CN109055826B (zh) 一种提高耐磨性轧辊激光熔覆合金材料及使用方法
CN114453846A (zh) 一种多尺寸纯钛阴极辊筒的制备方法
CN110539140B (zh) 一种预硬型塑料模具用特厚钢板的生产方法
CN102011076B (zh) 一种铌合金板材的加工工艺
WO2020134077A1 (zh) 用于模具钢加工设备的传动装置
CN211495740U (zh) 用于模具钢加工设备的传动装置
Lavrentev et al. Research of structural phase transformations in the fusion area of bimetallic punching tools
CN209792271U (zh) 针对模具钢的预处理装置
JP5535280B2 (ja) 溶接用チップの強化方法及び溶接用チップ
JP2014076489A (ja) 冷間圧延工業の要件を満たす鍛造ロールおよび該ロールの製造方法
Arulmoni et al. Friction Stir Processing of Aluminium alloys for Defense Applications
JP2013144831A (ja) 高生産効率の非晶質薄板製造方法および製造設備
WO2020134080A1 (zh) 一种针对模具钢的切割头、及其切割加工方法
CN112695184A (zh) 一种锂电池极片工作辊的热处理方法
RU2199604C2 (ru) Способ восстановления изделия и устройство для его осуществления
RU2298043C1 (ru) Способ термической обработки прокатных валков

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19901628

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2021600005

Country of ref document: JP

Kind code of ref document: A

122 Ep: pct application non-entry in european phase

Ref document number: 19901628

Country of ref document: EP

Kind code of ref document: A1