CN104646852A - Braze coating paste and application thereof - Google Patents

Abstract

The invention discloses a braze coating paste and application thereof. The braze coating paste preferably comprises 65 to 95wt% of a powdery braze material and an adhesive which is mixed with the powdery braze material to form a fluidic or pasty braze coating paste. The powdery braze material comprises 40 to 90wt% of diamond powder with the particle size of 5 to 1000 micrometers and the purity of greater than 99%, and braze powder which contains Cu and/or Ni serving as a base element as well as any more than two of Mn, Ti, Cr, Al, Sn and Fn serving as additional elements. The braze coating paste has excellent thixotropy, fluidness and certain viscosity, is free from compression molding in a use process, and can be directly injected to the surfaces of substrates such as a steel piece by virtue of an injection device; the braze coating paste can be used for brazing by use of a process same as that of the traditional braze material powder without using molds and pressure equipment, and the obtained brazed diamond tool has the advantages of favorable bonding strength, grinding force and service life, high rate of finished products, high material utilization ratio, high production efficiency and low production cost.

Description

Translated fromChinese

钎涂膏及其应用Brazing paste and its application

技术领域technical field

本发明具体涉及一种钎涂膏、其制备方法及应用，属于金刚石涂层技术领域。The invention specifically relates to a brazing paste, its preparation method and application, and belongs to the technical field of diamond coating.

背景技术Background technique

硬脆材料、如石材、玻璃、陶瓷等普通建筑材料，以及宝石、半导体、工程陶瓷、光学晶体、磁性材料、生物陶瓷等高档先进工程和功能材料的加工，需要采用具有更高硬度的磨料制备的工具，金刚石与其它磨料相比，具有极高的硬度、高相对耐磨性、热导率和抗压强度。因此，金刚石工具是硬脆材料切割、磨削等加工的最常用工具。在金属结合剂金刚石工具的制造工艺中，钎焊、烧结和电镀是三种最主要的制造方法。三种方法中，钎焊工艺是使金刚石颗粒结合强度最高的一种方法，这是因为在钎焊过程中钎料合金熔化以及毛细作用，使合金紧密包裹金刚石，同时在金刚石与钎料合金之间形成强的化学键，大大提高了工具的切削性能和自锐性，特别适合高速高效磨削加工。Hard and brittle materials, such as stone, glass, ceramics and other common building materials, as well as high-grade advanced engineering and functional materials such as gems, semiconductors, engineering ceramics, optical crystals, magnetic materials, bioceramics, etc., need to be prepared with abrasives with higher hardness Compared with other abrasives, diamond has extremely high hardness, high relative wear resistance, thermal conductivity and compressive strength. Therefore, diamond tools are the most commonly used tools for cutting and grinding hard and brittle materials. In the manufacturing process of metal bond diamond tools, brazing, sintering and electroplating are the three most important manufacturing methods. Among the three methods, the brazing process is the method with the highest bonding strength of diamond particles, because during the brazing process, the solder alloy melts and capillary action makes the alloy tightly wrap the diamond, and at the same time, the diamond and the solder alloy Strong chemical bonds are formed between them, which greatly improves the cutting performance and self-sharpening of the tool, and is especially suitable for high-speed and efficient grinding.

常规的钎焊工艺，是将钢制锯片基体碱洗、酸洗去油和氧化层，再将金刚石颗粒和钎料粉末的混合物布料于钢制锯片基体上，用压型机进行冷压形成有一定强度的生坯，最后放入真空钎焊炉中进行钎焊。CN102319934A公开了钎焊法制造金刚石工具的生产工艺和钎焊材料粉末的成分，此类钎焊材料粉末由镍基金属粉和金刚石颗粒组成，需经过压制成型后才能进行钎焊，但由于金刚石颗粒属于脆性材料，在压制过程中不易发生塑性变形而无法与周围颗粒咬合，因此生坯强度不高，尤其是要求极薄金刚石磨粒层的锯片，对压型的控制和模具设计提出了较高的要求，此外这种生坯在生产线进行物料转移时也时常发生破损，这些都导致了原材料的浪费并降低了成品率。The conventional brazing process is to alkali-wash and pickle the steel saw blade base to remove oil and oxide layer, then distribute the mixture of diamond particles and brazing filler metal on the steel saw blade base, and use a press to perform cold pressing. Form a green body with a certain strength, and finally put it into a vacuum brazing furnace for brazing. CN102319934A discloses the production process of manufacturing diamond tools by brazing method and the composition of brazing material powder. This type of brazing material powder is composed of nickel-based metal powder and diamond particles, which can be brazed after pressing and forming, but due to the It is a brittle material, and it is not easy to undergo plastic deformation during the pressing process and cannot bite with the surrounding particles. Therefore, the strength of the green body is not high, especially for saw blades that require an extremely thin diamond abrasive layer. In addition, this kind of green body is often damaged when the material is transferred in the production line, which leads to the waste of raw materials and reduces the yield of finished products.

发明内容Contents of the invention

本发明的主要目的在于提供一种钎涂膏，其具有优良的触变性和流动性，在使用过程中无需压制成生坯，能克服现有技术的不足，并替代传统的粉状钎焊材料。The main purpose of the present invention is to provide a brazing paste, which has excellent thixotropy and fluidity, does not need to be pressed into a green body during use, can overcome the deficiencies of the prior art, and replace traditional powdered brazing materials .

本发明的另一目的在于提供一种制备所述钎涂膏的方法。Another object of the present invention is to provide a method for preparing the brazing paste.

本发明的又一目的在于提供所述钎涂膏的应用。Another object of the present invention is to provide the application of the brazing paste.

为实现前述发明目的，本发明采用的技术方案包括：In order to realize the aforementioned object of the invention, the technical solutions adopted in the present invention include:

一种钎涂膏，其包括：A kind of brazing paste, it comprises:

粉状钎焊材料，以及powdered brazing materials, and

粘接剂，用以与所述粉状钎焊材料混合形成呈流体状或膏状的所述钎涂膏；a binder for mixing with the powdered brazing material to form the brazing paste in fluid or paste form;

其中，所述粉状钎焊材料包含：Wherein, the powdery brazing material comprises:

金刚石粉末，以及diamond powder, and

钎焊粉末，包含作为基础元素的Cu和/或Ni以及作为添加元素的Mn、Ti、Cr、Al、Sn、Fe中的任意两种以上。The brazing powder contains Cu and/or Ni as basic elements and any two or more of Mn, Ti, Cr, Al, Sn, and Fe as additive elements.

作为较为优选的实施方案之一，所述钎涂膏由粉状钎焊材料与粘接剂组成。As one of the more preferred embodiments, the brazing paste is composed of powdered brazing material and adhesive.

作为较为优选的实施方案之一，所述钎涂膏包含65-95wt％粉状钎焊材料。As one of the more preferred embodiments, the brazing paste contains 65-95wt% powdered brazing material.

作为较为优选的实施方案之一，所述粉状钎焊材料包含40wt％-90wt％金刚石粉。As one of the more preferred embodiments, the powder brazing material contains 40wt%-90wt% diamond powder.

作为较为优选的实施方案之一，所述金刚石粉的粒径为5-1000微米，纯度大于99％。As one of the more preferred embodiments, the particle size of the diamond powder is 5-1000 microns, and the purity is greater than 99%.

作为较为优选的实施方案之一，所述钎焊粉末包含金属粉的混合物和/或合金粉，所述金属粉的混合物和/或合金粉包含：Cu 11-14wt％、Mn 18-25wt％、Ti 5-10wt％、Al 8-11wt％、Sn1-2.1wt％的合金粉，其余部分包含Ni。As one of the more preferred embodiments, the brazing powder comprises a mixture of metal powders and/or alloy powders, and the mixture of metal powders and/or alloy powders comprises: Cu 11-14wt%, Mn 18-25wt%, Alloy powder of Ti 5-10wt%, Al 8-11wt%, Sn1-2.1wt%, and the rest contains Ni.

尤为优选的，所述金属粉的混合物和/或合金粉包含：Cu 11-14wt％、Mn 18-25wt％、Ti5-10wt％、Al 8-11wt％、Sn 1-2.1wt％的合金粉，余量为Ni。Particularly preferably, the mixture and/or alloy powder of the metal powder comprises: Cu 11-14wt%, Mn 18-25wt%, Ti5-10wt%, Al 8-11wt%, Sn 1-2.1wt% alloy powder, The balance is Ni.

作为较为优选的实施方案之一，所述钎焊粉末包含第一合金粉、第二合金粉、第三合金粉、第四合金粉中的任一种或两种以上的组合物。As one of the more preferred embodiments, the brazing powder contains any one of the first alloy powder, the second alloy powder, the third alloy powder, and the fourth alloy powder, or a combination of two or more.

进一步的，所述第一合金粉包含：Mn 0.5-10wt％、Ti 0.2-15wt％，其余部分包含Cu。尤为优选的，所述第一合金粉包含Mn 0.5-10wt％、Ti 0.2-15wt％，余量为Cu。Further, the first alloy powder includes: Mn 0.5-10wt%, Ti 0.2-15wt%, and the rest includes Cu. Particularly preferably, the first alloy powder comprises Mn 0.5-10wt%, Ti 0.2-15wt%, and the balance is Cu.

进一步的，所述第二合金粉包含：Mn 0.5-10wt％、Cr 0.2-10wt％，其余部分包含Cu。尤为优选的，所述第二合金粉包含：Mn 0.5-10wt％、Cr 0.2-10wt％，余量为Cu。Further, the second alloy powder includes: Mn 0.5-10wt%, Cr 0.2-10wt%, and the rest includes Cu. Particularly preferably, the second alloy powder comprises: Mn 0.5-10wt%, Cr 0.2-10wt%, and the balance is Cu.

进一步的，所述第三合金粉包含Sn 2-10wt％、Ni 0.2-8wt％、Cr 2-15wt％，其余部分包含Cu。尤为优选的，所述第三合金粉包含：Sn 2-10wt％、Ni 0.2-8wt％、Cr 2-15wt％，余量为Cu。Further, the third alloy powder includes Sn 2-10wt%, Ni 0.2-8wt%, Cr 2-15wt%, and the rest includes Cu. Particularly preferably, the third alloy powder comprises: Sn 2-10wt%, Ni 0.2-8wt%, Cr 2-15wt%, and the balance is Cu.

进一步的，所述第四合金粉包含Sn 0.5-10wt％、Ni 0.2-15wt％、Ti 0.2-5wt％，其余部分包含Cu。尤为优选的，所述第四合金粉包含Sn 0.5-10wt％、Ni 0.2-15wt％、Ti 0.2-5wt％，余量为Cu。Further, the fourth alloy powder contains Sn 0.5-10wt%, Ni 0.2-15wt%, Ti 0.2-5wt%, and the rest contains Cu. Particularly preferably, the fourth alloy powder comprises Sn 0.5-10wt%, Ni 0.2-15wt%, Ti 0.2-5wt%, and the balance is Cu.

作为较为优选的实施方案之一，所述钎焊粉末包含金属粉的混合物，所述金属粉的混合物包含Cu粉72-98wt％、Ni粉0.5-15wt％、Fe粉0.1-4wt％、Mn粉0.2-4wt％、Cr粉0.5-5wt％。As one of the more preferred embodiments, the brazing powder contains a mixture of metal powders, the mixture of metal powders contains Cu powder 72-98wt%, Ni powder 0.5-15wt%, Fe powder 0.1-4wt%, Mn powder 0.2-4wt%, Cr powder 0.5-5wt%.

需要说明的是，以上述及的合金粉系两种以上金属或非金属元素通过熔炼雾化或扩散等手段获得的已合金化的金属粉体，而非几种元素粉末的简单混合。It should be noted that the alloy powder mentioned above is an alloyed metal powder obtained by melting, atomizing or diffusing two or more metal or non-metal elements, rather than a simple mixture of several element powders.

作为较为优选的实施方案之一，所述粘接剂包含50％-98wt％溶剂、0.5-8wt％增稠剂、0.2-35wt％流变剂、0.1-5wt％消泡剂和活化剂。As one of the more preferred embodiments, the adhesive contains 50%-98wt% solvent, 0.5-8wt% thickener, 0.2-35wt% rheological agent, 0.1-5wt% defoamer and activator.

进一步的，所述溶剂至少可优选自但不限于去离子水、二乙二醇单乙醚、二丙二醇单甲醚、1，2-丙二醇、乙基卡必醇、乙二醇中的任一种或多种。Further, the solvent can at least preferably be selected from but not limited to any one of deionized water, diethylene glycol monoethyl ether, dipropylene glycol monomethyl ether, 1,2-propylene glycol, ethyl carbitol, ethylene glycol or more.

进一步的，所述增稠剂可优选自但不限于羟乙基淀粉、羟丙基淀粉、丙烯酸甲酯、聚甲基丙烯酸甲酯、羧甲基淀粉、羟乙基纤维素、乙基羟乙基纤维素、邻苯二甲酸二丁酯、环氧树脂、甲壳质、瓜尔胶、黄原胶、阿拉伯胶、槐豆胶中的任一种或多种。Further, the thickener may be preferably selected from but not limited to hydroxyethyl starch, hydroxypropyl starch, methyl acrylate, polymethyl methacrylate, carboxymethyl starch, hydroxyethyl cellulose, ethyl hydroxyethyl Any one or more of base cellulose, dibutyl phthalate, epoxy resin, chitin, guar gum, xanthan gum, Arabic gum, locust bean gum.

进一步的，所述流变剂可优选自但不限于氢化蓖麻油、甘油、硬脂酸、水杨酸酰胺中的任一种或多种。Further, the rheological agent may be preferably selected from but not limited to any one or more of hydrogenated castor oil, glycerin, stearic acid, and salicylic acid amide.

进一步的，所述消泡剂和活化剂可优选自但不限于炔二醇、苯并三氮锉、硅油、矿物油、植物油中的任一种或多种。Further, the defoamer and activator may be preferably selected from but not limited to any one or more of acetylene glycol, benzotriazepam, silicone oil, mineral oil, and vegetable oil.

进一步的，所述钎涂膏的粘度为30000-150000cps。Further, the viscosity of the brazing paste is 30000-150000 cps.

前述任一种钎涂膏的制备方法，包括：The preparation method of any aforementioned brazing paste, comprising:

1)将钎焊粉和金刚石粉在混料机中进行均匀混合，制成粉状钎焊材料；1) uniformly mixing brazing powder and diamond powder in a mixer to make powdery brazing material;

2)将增稠剂、流变剂、消泡剂和活化剂加入溶剂中，搅拌并形成均匀的粘接剂；2) Add thickener, rheological agent, defoamer and activator into the solvent, stir and form a uniform adhesive;

3)将粉状钎焊材料加入粘接剂中搅拌均匀，获得所述钎涂膏。3) Add the powdery brazing material into the adhesive and stir evenly to obtain the brazing paste.

前述任一种钎涂膏于制备金刚石材料层或金刚石工具中的应用。Application of any one of the aforementioned brazing pastes in the preparation of diamond material layers or diamond tools.

一种金刚石工具，其包括基体以及结合于基体表面的金刚石层，所述金刚石层主要由前述的任一种钎涂膏钎焊形成。A diamond tool, which includes a substrate and a diamond layer bonded to the surface of the substrate, the diamond layer is mainly formed by brazing any one of the aforementioned brazing pastes.

进一步的，所述金刚石工具包括金刚石锯片。Further, the diamond tool includes a diamond saw blade.

本发明还提供了所述金刚石工具的制备方法，其包括：The present invention also provides the preparation method of described diamond tool, it comprises:

至少选用注射方式将所述钎涂膏施加于基体表面形成毛坯；At least selecting the injection method to apply the brazing paste to the surface of the substrate to form a blank;

以及，将所述毛坯于真空环境或保护性气氛中进行钎焊，形成所述金刚石工具。And, brazing the blank in a vacuum environment or a protective atmosphere to form the diamond tool.

例如，在一典型实施案例中，一种金刚石锯片的制备方法可以包括：将钎涂膏装入注射装置(例如，点胶机或膏体分配器)中，通过注射装置将膏体按需要的形状注射于钢制锯片基底表面，再将含有此锯片毛坯送入真空炉或气氛保护炉中，采用传统粉末钎焊相同的工艺(钎焊温度850-1150℃，时间不超过60min)进行钎焊，其中，由于所采用的粘接剂在低温(300℃以下)时已完全挥发，因此，钎焊后零件表面除金刚石磨料和钎焊金属外，不会残留其它杂质。For example, in a typical implementation case, a method for preparing a diamond saw blade may include: filling brazing paste into an injection device (for example, a glue dispenser or a paste dispenser), and dispensing the paste as needed through the injection device. The shape of the saw blade is injected on the base surface of the steel saw blade, and then the blank containing the saw blade is sent into a vacuum furnace or an atmosphere protection furnace, and the same process as traditional powder brazing is adopted (brazing temperature 850-1150°C, time not exceeding 60min) Brazing is carried out, wherein, since the adhesive used has been completely volatilized at low temperature (below 300°C), after brazing, no other impurities will remain on the surface of the parts except diamond abrasives and brazing metal.

与现有技术相比，本发明的优点包括：提供了一种新型的膏状钎焊材料(以下称“钎涂膏”)，其具有优良的触变性、流动性和一定粘度，在使用过程中无需压制成型，可直接通过注射装置注射于钢件等基体表面，而无需模具及压力设备，并可利用与传统钎焊材料粉末相同的工艺进行钎焊，且所获钎焊金刚石工具具有良好的结合强度、磨削力和使用寿命，成品率高，材料利用高，生产效率高，生产成本低。Compared with the prior art, the advantages of the present invention include: providing a new type of paste brazing material (hereinafter referred to as "brazing paste"), which has excellent thixotropy, fluidity and certain viscosity, and can be used during use It does not need to be pressed and formed, and can be directly injected on the surface of steel parts and other substrates through the injection device, without the need for molds and pressure equipment, and can be brazed using the same process as traditional brazing material powders, and the brazed diamond tools obtained have good properties. Excellent bonding strength, grinding force and service life, high yield, high material utilization, high production efficiency and low production cost.

具体实施方式Detailed ways

以下结合若干实施例对本发明的技术方案作进一步的解释说明。The technical solution of the present invention will be further explained below in conjunction with several embodiments.

实施例1-6按照表1所示组成配置钎涂膏。Examples 1-6 are prepared according to the composition shown in Table 1 and brazing paste.

将实施例1-6中配置的钎涂膏以点胶机或膏体分配器按需要的形状注射于钢制锯片基底表面，再将含有此锯片毛坯送入真空炉或气氛保护炉中，采用传统粉末钎焊相同的工艺(钎焊温度850-1150℃，时间不超过60min)进行钎焊，其中，由于所采用的粘接剂在低温(300℃以下)时已完全挥发，因此，钎焊后零件表面除金刚石磨料和钎焊金属外，金属光泽明显，无黑色碳化物残留，亦不会残留其它杂质，获得多个金刚石锯片成品(简称“实施例产品”)。Inject the brazing paste configured in Examples 1-6 on the surface of the steel saw blade base with a dispenser or a paste dispenser according to the required shape, and then send the saw blade blank into a vacuum furnace or an atmosphere protection furnace , using the same process as traditional powder brazing (brazing temperature 850-1150°C, time not exceeding 60min) for brazing, in which, since the adhesive used has been completely volatilized at low temperature (below 300°C), therefore, After brazing, except for diamond abrasives and brazing metal, the surface of the parts has obvious metallic luster, no black carbide residue, and no other impurities remain, and a number of finished diamond saw blades (referred to as "example products") are obtained.

对照例1-6取实施例1-6中的各粉状钎焊材料直接作为钎料，并参照CN102319934A所提供的方式制成多个金刚石锯片产品(简称“对照例产品”)。For Comparative Examples 1-6, the powdered brazing materials in Examples 1-6 were directly used as brazing material, and a plurality of diamond saw blade products (referred to as "comparative example products") were made by referring to the method provided by CN102319934A.

采用相同方式分别对实施例产品和对照例产品的性能进行测试，可以发现，实施例产品中金刚石层与基底的结合强度基本均优于对照例产品，且实施例产品的磨削力和使用寿命亦超过对照例产品。另外，实施例产品的成品率为99.8％左右，而对照例产品的成品率为98％左右。The performance of the example product and the comparative example product is tested respectively in the same way, and it can be found that the bond strength between the diamond layer and the substrate in the example product is substantially better than that of the comparative example product, and the grinding force and service life of the example product Also surpassed the comparative example product. In addition, the yield rate of the example product is about 99.8%, while the yield rate of the control example product is about 98%.

应当指出，以上所述本发明的具体实施方式，并不构成对本发明保护范围的限定。任何根据本发明的技术构思所作出的各种其他相应的改变与变形，均应包含在本发明权利要求的保护范围内。It should be pointed out that the specific implementation manners of the present invention described above do not constitute a limitation to the protection scope of the present invention. Any other corresponding changes and modifications made according to the technical concept of the present invention shall be included in the protection scope of the claims of the present invention.

表1实施例1-6中钎涂膏的组成The composition of brazing paste in table 1 embodiment 1-6

Claims (10)

Translated fromChinese

1. 一种钎涂膏，其特征在于包括：1. a brazing paste, is characterized in that comprising:粉状钎焊材料，以及powdered brazing materials, and粘接剂，用以与所述粉状钎焊材料混合形成呈流体状或膏状的所述钎涂膏；a binder for mixing with the powdered brazing material to form the brazing paste in fluid or paste form;其中，所述粉状钎焊材料包含：Wherein, the powdery brazing material comprises:金刚石粉末，以及diamond powder, and钎焊粉末，包含作为基础元素的Cu和/或Ni以及作为添加元素的Mn、Ti、Cr、Al、Sn、Fe中的任意两种以上。The brazing powder contains Cu and/or Ni as basic elements and any two or more of Mn, Ti, Cr, Al, Sn, and Fe as additive elements.2. 根据权利要求1所述的钎涂膏，其特征在于所述钎涂膏包含65-95wt%粉状钎焊材料。2. The brazing paste according to claim 1, characterized in that the brazing paste comprises 65-95wt% powdered brazing material.3. 根据权利要求1或2所述的钎涂膏，其特征在于所述粉状钎焊材料包含40wt%-90wt%金刚石粉，且所述金刚石粉的粒径为5 -1000微米，纯度大于99%。3. brazing paste according to claim 1 and 2, is characterized in that described powdery brazing material comprises 40wt%-90wt% diamond powder, and the particle diameter of described diamond powder is 5-1000 micron, and purity is greater than 99%.4. 根据权利要求1或2所述的钎涂膏，其特征在于所述钎焊粉末包含：4. brazing paste according to claim 1 or 2, is characterized in that described brazing powder comprises:金属粉的混合物和/或合金粉，包含：Cu 11-14wt%、Mn 18-25wt%、Ti 5-10wt%、Al 8-11wt%、Sn 1-2.1wt%的合金粉，其余部分包含Ni；A mixture of metal powders and/or alloy powders, containing: alloy powders of Cu 11-14wt%, Mn 18-25wt%, Ti 5-10wt%, Al 8-11wt%, Sn 1-2.1wt%, and the remainder contains Ni ;或者，第一合金粉、第二合金粉、第三合金粉、第四合金粉中的任一种或两种以上的组合物，其中，Alternatively, any one or a combination of two or more of the first alloy powder, the second alloy powder, the third alloy powder, and the fourth alloy powder, wherein,第一合金粉，包含：Mn 0.5-10wt%、Ti 0.2-15wt%，其余部分包含Cu，The first alloy powder includes: Mn 0.5-10wt%, Ti 0.2-15wt%, and the rest contains Cu,第二合金粉，包含：Mn 0.5-10wt%、Cr 0.2-10wt%，其余部分包含Cu，The second alloy powder comprises: Mn 0.5-10wt%, Cr 0.2-10wt%, and the remainder contains Cu,第三合金粉，包含：Sn 2-10wt%、Ni 0.2-8wt%、Cr 2-15wt%，其余部分包含Cu，The third alloy powder comprises: Sn 2-10wt%, Ni 0.2-8wt%, Cr 2-15wt%, and the remainder contains Cu,第四合金粉，包含：Sn 0.5-10wt%、Ni 0.2-15wt%、Ti 0.2-5wt%，其余部分包含Cu；The fourth alloy powder includes: Sn 0.5-10wt%, Ni 0.2-15wt%, Ti 0.2-5wt%, and the rest contains Cu;或者，金属粉的混合物，包含：Cu粉72-98wt%、Ni粉0.5-15wt%、Fe粉0.1-4wt%、Mn粉 0.2-4wt%、Cr粉0.5-5wt%。Alternatively, the mixture of metal powders includes: Cu powder 72-98wt%, Ni powder 0.5-15wt%, Fe powder 0.1-4wt%, Mn powder 0.2-4wt%, Cr powder 0.5-5wt%.5. 根据权利要求1所述的钎涂膏，其特征在于所述粘接剂包含50%-98wt%溶剂、0.5-8wt%增稠剂、0.2-35wt%流变剂、0.1-5wt%消泡剂和活化剂；5. brazing paste according to claim 1, is characterized in that described bonding agent comprises 50%-98wt% solvent, 0.5-8wt% thickening agent, 0.2-35wt% rheology agent, 0.1-5wt% disappearance agent Foaming agents and activators;其中，所述溶剂至少选自去离子水、二乙二醇单乙醚、二丙二醇单甲醚、1，2-丙二醇、乙基卡必醇、乙二醇中的任一种；Wherein, the solvent is selected from at least any one of deionized water, diethylene glycol monoethyl ether, dipropylene glycol monomethyl ether, 1,2-propylene glycol, ethyl carbitol, and ethylene glycol;所述增稠剂至少选自羟乙基淀粉、羟丙基淀粉、丙烯酸甲酯、聚甲基丙烯酸甲酯、羧甲基淀粉、羟乙基纤维素、乙基羟乙基纤维素、邻苯二甲酸二丁酯、环氧树脂、甲壳质、瓜尔胶、黄原胶、阿拉伯胶、槐豆胶中的任一种；The thickener is at least selected from hydroxyethyl starch, hydroxypropyl starch, methyl acrylate, polymethyl methacrylate, carboxymethyl starch, hydroxyethyl cellulose, ethyl hydroxyethyl cellulose, o-phthalic Any of dibutyl diformate, epoxy resin, chitin, guar gum, xanthan gum, acacia gum, locust bean gum;所述流变剂至少选自氢化蓖麻油、甘油、硬脂酸、水杨酸酰胺中的任一种；The rheological agent is at least selected from any one of hydrogenated castor oil, glycerin, stearic acid, and salicylic acid amide;所述消泡剂和活化剂至少选自炔二醇、苯并三氮锉、硅油、矿物油、植物油中的任一种。The defoamer and activator are at least selected from any one of acetylene glycol, benzotriazepam, silicone oil, mineral oil, and vegetable oil.6. 根据权利要求1所述的钎涂膏，其特征在于所述钎涂膏的粘度为30000-150000cps。6. brazing paste according to claim 1, is characterized in that the viscosity of described brazing paste is 30000-150000cps.7. 权利要求1-6中任一项所述钎涂膏于制备金刚石材料层或金刚石工具中的应用。7. the brazing paste described in any one in claim 1-6 is in the application in preparation diamond material layer or diamond tool.8. 一种金刚石工具，其特征在于包括基体以及结合于基体表面的金刚石层，所述金刚石层主要由权利要求1-6中任一项所述的钎涂膏钎焊形成。8. A diamond tool, characterized in that comprising a substrate and a diamond layer bonded to the surface of the substrate, the diamond layer is mainly formed by brazing paste brazing according to any one of claims 1-6.9. 根据权利要求8所述的金刚石工具，其特征在于它包括金刚石锯片。9. The diamond tool according to claim 8, characterized in that it comprises a diamond saw blade.10. 权利要求8或9所述金刚石工具的制备方法，其特征在于包括：10. the preparation method of diamond tool described in claim 8 or 9, is characterized in that comprising:至少选用注射方式将权利要求1-6中任一项所述的钎涂膏施加于基体表面形成毛坯；At least select the injection method to apply the brazing paste according to any one of claims 1-6 to the surface of the substrate to form a blank;以及，将所述毛坯于真空环境或保护性气氛中进行钎焊，形成所述金刚石工具。And, brazing the blank in a vacuum environment or a protective atmosphere to form the diamond tool.