CN100443189C - Manufacturing process of composite wear-resistant rod - Google Patents
Manufacturing process of composite wear-resistant rod Download PDFInfo
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Abstract
本发明公开了一种复合耐磨棒的制造工艺，具体步骤如下：拉制纳米结构金属丝、处理纳米结构金属丝、加工复合管、加工耐磨棒骨架、放置复合管、平铺焊接，即制备出耐磨棒骨架与复合管复合为一体的用于棒磨机的复合耐磨棒。本发明的优点是：该复合耐磨棒充分发挥了纳米结构金属材料的高韧性、高强度、高耐磨和低价格等各种优点，解决了普通合金耐磨棒要消耗大量有色金属的问题，使用寿命比普通材质耐磨棒提高一个数量级。本发明的工艺可控性强、成品率高、生产质量稳定、能耗低、不需要经过热处理等工艺即可获得很高的使用性能。
The invention discloses a manufacturing process of a composite wear-resistant rod. The specific steps are as follows: drawing nano-structured metal wire, processing the nano-structured metal wire, processing a composite tube, processing the skeleton of a wear-resistant rod, placing the composite tube, and flat welding, namely A composite wear-resistant rod for a rod mill in which the wear-resistant rod skeleton and the composite pipe are integrated is prepared. The advantages of the present invention are: the composite wear-resistant rod fully utilizes various advantages such as high toughness, high strength, high wear resistance and low price of the nanostructure metal material, and solves the problem that ordinary alloy wear-resistant rods consume a large amount of non-ferrous metals , the service life is an order of magnitude higher than that of ordinary material wear-resistant rods. The process of the invention has strong controllability, high yield, stable production quality, low energy consumption, and high performance can be obtained without heat treatment and the like.
Description
技术领域 technical field
本发明涉及一般破碎、研磨、浮选、粉碎领域的机械设备，特别涉及一种复合耐磨棒的制造工艺。The invention relates to mechanical equipment in the fields of general crushing, grinding, flotation and crushing, and in particular to a manufacturing process of a composite wear-resistant rod.
背景技术 Background technique
棒磨机广泛应用在煤炭、冶金、矿山、电力、建材、耐火材料、能源等工业行业中的破碎、制粉、浮选、研磨等作业上。耐磨棒在棒磨机中对被磨物料进行冲击和研磨，磨料对耐磨棒表面产生切削和凿削作用，所以，耐磨棒是棒磨机中最主要的磨损件，国内每年的需求量在十万吨以上。目前各行业所用的耐磨棒材质主要有高锰钢、多元低合金钢、碳钢等几种单一金属材料。高锰钢只有在高负荷、高冲击应力下，实现奥氏体向马氏体的固态相变而加工硬化，才能充分发挥其耐磨性，且屈服强度低，易产生塑性流变，而在磨机中，磨棒是通过磨料堆积层间接相互冲击，冲击强度较小，加工硬化效果不显著，因此耐磨性达不到理想值；多元低合金钢的宏观硬度在HRC40左右，由于硬度低，不能抵抗磨料的压入和划动，在使用过程中表面产生大量的切削和塑变低周疲劳，故耐磨性不好；碳钢硬度和韧性也不好兼顾，很难胜任耐磨棒细而长又要耐磨的要求。近年来，针对耐磨棒磨损的具体工况和资源情况，国内外主要在化学成分再合金化、热处理工艺、冶炼浇注工艺等方面展开研究，研制出多种耐磨材料，主要有改性高锰钢、中锰钢、超高锰钢系列，高、中、低碳耐磨合金钢系列，但由于单一材质在强度、硬度、塑韧性等方面机械力学性能不可兼顾各种现场工况存在特殊要求，所以使用期限仍然很短或很难满足各种工况的需要。另外，以上所述的合金耐磨棒，要消耗大量的锰、铬、镍、铜等有色金属，造成国家战略资源储备降低。申请人申请的中国专利“棒磨机复合耐磨棒”，专利号“ZL97239713.2”，采用钢筋与耐磨铸铁的复合工艺，对耐磨棒的抗冲击性、耐磨损性等性能指标进行了改进和提高，但针对不同的工况，还需要从材质、内部结构、制造工艺等方面进行深入研究，开发出一种新的用于棒磨机的复合耐磨棒制造工艺，进一步提高棒磨机的使用性能。Rod mills are widely used in crushing, milling, flotation, grinding and other operations in coal, metallurgy, mining, electric power, building materials, refractory materials, energy and other industrial industries. The wear-resistant rod impacts and grinds the material to be ground in the rod mill, and the abrasive has the effect of cutting and chiseling the surface of the wear-resistant rod. Therefore, the wear-resistant rod is the most important wear part in the rod mill. The annual domestic demand The volume is more than 100,000 tons. At present, the wear-resistant rod materials used in various industries mainly include several single metal materials such as high manganese steel, multi-element low alloy steel, and carbon steel. Only under high load and high impact stress, the high manganese steel can realize the solid phase transformation from austenite to martensite and work hardening can give full play to its wear resistance, and the yield strength is low, and it is easy to produce plastic rheology. In the mill, the grinding rods impact each other indirectly through the abrasive accumulation layer, the impact strength is small, and the work hardening effect is not significant, so the wear resistance cannot reach the ideal value; the macroscopic hardness of multi-element low alloy steel is about HRC40, due to the low hardness , can not resist the pressing and scratching of abrasives, and a large number of cutting and plastic changes occur on the surface during use. Low cycle fatigue, so the wear resistance is not good; the hardness and toughness of carbon steel are not good at both, it is difficult to be competent for wear-resistant rods Thin, long and wear-resistant requirements. In recent years, according to the specific working conditions and resource conditions of wear-resistant rods, domestic and foreign researches have mainly been carried out on chemical composition re-alloying, heat treatment technology, smelting and pouring technology, etc., and a variety of wear-resistant materials have been developed, mainly modified high-strength Manganese steel, medium manganese steel, ultra-high manganese steel series, high, medium and low carbon wear-resistant alloy steel series, but due to the mechanical and mechanical properties of a single material in terms of strength, hardness, plastic toughness, etc. Requirements, so the service life is still very short or it is difficult to meet the needs of various working conditions. In addition, the alloy wear-resistant rods mentioned above will consume a large amount of non-ferrous metals such as manganese, chromium, nickel, copper, etc., resulting in a reduction in national strategic resource reserves. The Chinese patent "Rod Mill Composite Wear-resistant Rod" applied by the applicant, patent number "ZL97239713.2", adopts the composite process of steel bar and wear-resistant cast iron, and has performance indicators such as impact resistance and wear resistance of the wear-resistant rod It has been improved and improved, but for different working conditions, it is necessary to conduct in-depth research on materials, internal structures, manufacturing processes, etc., to develop a new composite wear-resistant rod manufacturing process for rod mills, and to further improve Rod mill performance.
发明内容 Contents of the invention
本发明的目的在于开发一种新的能够更好的满足抗冲击性、耐腐蚀性、耐磨损性等多种工况要求，具有使用寿命长、价格低的复合耐磨棒的制造工艺。The purpose of the present invention is to develop a new manufacturing process for a composite wear-resistant rod that can better meet the requirements of various working conditions such as impact resistance, corrosion resistance, and wear resistance, and has a long service life and low price.
本发明的技术解决方案是这样实现的：Technical solution of the present invention is realized like this:
一种复合耐磨棒的制造工艺，该制造工艺依下述步骤进行：A manufacturing process of a composite wear-resistant rod, the manufacturing process is carried out according to the following steps:
a.拉制纳米结构金属丝(1)，根据不同工况需要，选用不同成分的金属材料；a. Drawing nanostructure metal wire (1), according to the needs of different working conditions, select metal materials with different components;
b.对纳米结构金属丝(1)酸洗或丙酮洗涤，进行表面除锈、除污、除油等处理；b. Pickling the nanostructure metal wire (1) or washing it with acetone, and performing surface derusting, decontamination, degreasing and other treatments;
c.根据耐磨棒规格尺寸将一定数量的纳米结构金属丝(1)紧密固定在束紧外管(2)内，加工成截面为正方形或长方形的复合管；根据耐磨棒骨架(3)螺旋槽的深度尺寸，对复合管进行切割；c. According to the size of the wear-resistant rod, a certain amount of nano-structured metal wires (1) are tightly fixed in the bundled outer tube (2), and processed into a composite tube with a square or rectangular cross-section; according to the wear-resistant rod skeleton (3) The depth dimension of the spiral groove is used to cut the composite pipe;
d.根据耐磨棒的规格，选择作为耐磨棒骨架(3)的棒材材质与尺寸；将棒材加工成带有螺旋槽的耐磨棒骨架(3)；d. According to the specifications of the wear-resistant rod, select the rod material and size as the wear-resistant rod skeleton (3); process the rod into a wear-resistant rod skeleton (3) with a spiral groove;
e.将制作好的复合管紧密镶嵌在耐磨棒骨架(3)螺旋槽中；e. Tightly embed the prepared composite pipe in the helical groove of the wear-resistant rod skeleton (3);
f.将耐磨棒骨架(3)与紧密镶嵌在螺旋槽中的复合管用铜焊焊牢，使其牢固连接成为一个整体，修磨表面至工艺要求尺寸，即制备出复合耐磨棒。f. Braze the wear-resistant rod skeleton (3) and the composite pipe tightly embedded in the spiral groove with brazing to make it firmly connected as a whole, and grind the surface to the size required by the process to prepare a composite wear-resistant rod.
在上述技术方案中，束紧外管(2)采用A3钢制成，其壁厚为1～4mm。In the above technical solution, the tightening outer tube (2) is made of A3 steel, and its wall thickness is 1-4mm.
在上述技术方案中，纳米结构金属丝(1)的直径为0.1～2.5mm。该纳米结构金属丝(1)选用纳米结构的低碳钢、中碳钢、高碳钢金属丝，或者纳米结构的低、中、高碳合金钢金属丝，或者纳米结构锰钢亚稳材料的金属丝。In the above technical solution, the diameter of the nanostructure metal wire (1) is 0.1-2.5mm. The nanostructure metal wire (1) is selected from nanostructure low carbon steel, medium carbon steel, high carbon steel wire, or nanostructure low, medium and high carbon alloy steel wire, or nanostructure manganese steel metastable material metallic line.
在上述技术方案中，耐磨棒骨架(3)采用A3钢制作；该耐磨棒骨架(3)的螺旋槽与横截面的夹角一般为10～45°，螺旋槽的深度一般为耐磨棒直径的1/5～1/3。In the above technical scheme, the wear-resistant rod skeleton (3) is made of A3 steel; the angle between the spiral groove of the wear-resistant rod skeleton (3) and the cross section is generally 10-45°, and the depth of the spiral groove is generally 1/5~1/3 of the rod diameter.
本发明具有以下优点：The present invention has the following advantages:
1、在耐磨棒骨架的螺旋槽中镶嵌有纳米结构金属丝与束紧外管紧固为一体的复合管，构成抗磨硬质面，能够阻止磨料颗粒在耐磨棒工作面的压入和划动，从而使耐磨棒具有很高的耐磨性能。1. In the spiral groove of the wear-resistant rod skeleton, there is a composite tube that is fastened with a nano-structured metal wire and a tight outer tube to form an anti-wear hard surface, which can prevent the abrasive particles from being pressed into the wear-resistant rod working surface And scratch, so that the wear-resistant rod has high wear resistance.
2、本发明充分发挥了纳米结构金属材料的高韧性、高强度、高耐磨和低价格等各种优点，并解决了普通合金耐磨棒要消耗大量有色金属的问题。2. The invention makes full use of the advantages of high toughness, high strength, high wear resistance and low price of nanostructured metal materials, and solves the problem that ordinary alloy wear-resistant rods consume a large amount of non-ferrous metals.
3、本发明的复合成型工艺可控性强、成品率高、生产质量稳定、能耗低、不需要经过热处理等工艺即可获得很高的使用性能。3. The composite molding process of the present invention has strong controllability, high yield, stable production quality, low energy consumption, and high performance can be obtained without heat treatment and other processes.
附图说明 Description of drawings
下面结合附图和实施例对本发明作进一步详细说明：Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:
图1是本发明的工艺流程图；Fig. 1 is a process flow diagram of the present invention;
图2是本发明的复合管立面示意图；Fig. 2 is composite pipe elevation schematic diagram of the present invention;
图3是本发明的耐磨棒骨架正视剖面示意图；Fig. 3 is the schematic cross-sectional diagram of the front view of the wear-resistant rod skeleton of the present invention;
图4是本发明产品正视剖面示意图；Fig. 4 is a front view sectional view of the product of the present invention;
图5是本发明的产品拼合展开示意图。Fig. 5 is a schematic diagram of product assembly and development of the present invention.
具体实施方式 Detailed ways
实施例：Example:
本发明的工艺流程，参见图1。复合耐磨棒的制造工艺步骤如下：Process flow of the present invention, see Fig. 1. The manufacturing process steps of composite wear-resistant rods are as follows:
a.拉制金属丝。根据不同工况需要，选用不同成分的金属材料，用拉丝设备拉制加工出直径为0.1～2.5mm纳米结构金属丝1；纳米结构金属丝的材料选用低碳钢、中碳钢、高碳钢金属丝，或者是低、中、高碳合金钢金属丝，或者锰钢亚稳材料的金属丝，也可选用相应的金属丝材料。a. Drawn wire. According to the needs of different working conditions, metal materials with different components are selected, and nano-structured
b.处理金属丝。对纳米结构金属丝1采用酸洗或丙酮洗涤方式，进行表面除锈、除污、除油等处理。b. Handle wire. The
c.加工复合管。参见图2，根据耐磨棒规格尺寸，确定束紧外管2的尺寸，束紧外管2的厚度一般为1～4mm；束紧外管2采用A3钢制作；将一定数量的纳米结构金属丝1紧密固定在束紧外管2内，并将该束紧外管2加工成截面为正方形或长方形的复合管，该正方形复合管截面的长宽尺寸一般为10×10～40×40mm，该长方形复合管截面的长宽尺寸一般为10×20～20×60mm；根据耐磨棒骨架3螺旋槽的深度尺寸对复合管进行切割。c. Processing composite pipe. Referring to Fig. 2, according to the specification and size of the wear-resistant rod, determine the size of the tightening
d.加工耐磨棒骨架。参见图3，根据耐磨棒规格与复合管尺寸，选择作为耐磨棒骨架3的棒材材质，确定该棒材的直径与长度尺寸；用车床将棒材加工成带有螺旋槽的耐磨棒骨架3，该螺旋槽的宽度与深度与复合管相匹配。该螺旋槽与横截面的夹角一般为10～45°；螺旋槽的深度一般定为耐磨棒直径的1/5～1/3。棒材材质选用A3钢制作。d. Processing wear-resistant rod skeleton. Referring to Fig. 3, according to the wear-resistant rod specification and the size of the composite pipe, select the rod material as the wear-
e.放置复合管。将制作好的复合管紧密镶嵌在耐磨棒骨架3螺旋槽中。e. Place the composite tube. The fabricated composite pipe is tightly embedded in the 3 helical grooves of the wear-resistant rod skeleton.
f.焊接、制作复合耐磨棒。将耐磨棒骨架3与紧密镶嵌在螺旋槽中的复合管用铜焊焊牢，使其牢固连接成为一个整体，修磨表面至工艺要求尺寸，即制备出耐磨棒骨架与复合管复合为一体的复合耐磨棒。参见图4和图5。f. Welding and making composite wear-resistant rods. The wear-
本发明的工艺步骤中c与d可同时进行。In the process step of the present invention, c and d can be carried out simultaneously.
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| CN (1) | CN100443189C (en) |
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| US10456849B2 (en) * | 2017-05-25 | 2019-10-29 | General Electric Company | Composite component having angled braze joint, coupon brazing method and related storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5269477A (en) * | 1991-05-28 | 1993-12-14 | Kloeckner-Humboldt-Deutz Ag | Wear-resistant grinding drum for employment in roller machines, particularly in high-pressure roll presses |
| WO1998031467A1 (en) * | 1997-01-15 | 1998-07-23 | Magotteaux International S.A. | Insert for composite wear pieces, method for making a wear piece using such inserts and resulting wear piece |
| CN2296771Y (en) * | 1997-06-19 | 1998-11-11 | 西安建筑科技大学 | Composite wear-resisting rod for rod mill |
| CN1651146A (en) * | 2005-02-03 | 2005-08-10 | 西安建筑科技大学 | Ternary Composite Material Wear-Resistant Lining Plate and Its Preparation Technology |
| CN2805914Y (en) * | 2005-07-29 | 2006-08-16 | 中信重型机械公司 | Novel grinding roll surface for rolling |
-
2006
- 2006-09-19 CN CNB2006101046046A patent/CN100443189C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5269477A (en) * | 1991-05-28 | 1993-12-14 | Kloeckner-Humboldt-Deutz Ag | Wear-resistant grinding drum for employment in roller machines, particularly in high-pressure roll presses |
| WO1998031467A1 (en) * | 1997-01-15 | 1998-07-23 | Magotteaux International S.A. | Insert for composite wear pieces, method for making a wear piece using such inserts and resulting wear piece |
| CN2296771Y (en) * | 1997-06-19 | 1998-11-11 | 西安建筑科技大学 | Composite wear-resisting rod for rod mill |
| CN1651146A (en) * | 2005-02-03 | 2005-08-10 | 西安建筑科技大学 | Ternary Composite Material Wear-Resistant Lining Plate and Its Preparation Technology |
| CN2805914Y (en) * | 2005-07-29 | 2006-08-16 | 中信重型机械公司 | Novel grinding roll surface for rolling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1923371A (en) | 2007-03-07 |
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