A hydraulic shearing machine self-lubricating blade production system and method

Abstract

The present application relates to the technical field of machine tool, disclose a kind of hydraulic shears with self-lubricating blade production system, it is characterized in that, the system includes: raw material collection module: for collecting raw materials and smelting, get mixed molten iron;Pretreatment module: for the mixed molten iron pretreatment gets production molten iron, after the production molten iron is excited and gets self-lubricating blade blank;Rough machining module: for the self-lubricating blade blank is rough machining according to drawing gets self-lubricating blade semi-finished product;Detection and manufacturing module: for the performance of the self-lubricating blade semi-finished product is detected, the self-lubricating blade semi-finished product that detects qualified is finished to the hydraulic shears with self-lubricating blade.Can save the high-temperature forging, annealing treatment and rough machining quenching and tempering process in current blade manufacturing process.In addition, by effectively controlling billet size, the allowance of milling processing can be greatly reduced, and the manufacturing cost of blade is further reduced.

Description

Technical Field

[0001] This invention relates to the field of machine tool technology, and in particular to a production system and method for self-lubricating blades for hydraulic shearing machines. Background Technology

[0002] With the booming development of my country's infrastructure construction and electrical manufacturing industry, manufacturers have put forward higher requirements for the on-site processing efficiency of metal structural components. For example, industries such as bridge and tunnel engineering, steel structure construction, elevator manufacturing and air conditioning manufacturing need to perform a large amount of on-site processing of steel plates, angle steel, channel steel and other steel sections. In order to improve on-site work efficiency, hydraulic shearing machines that integrate multiple functions such as cutting, punching, chamfering and bending have emerged.

[0003] Hydraulic shearing machines primarily utilize different punching and shearing modules to shear various structural steels, each with its corresponding cutting blades. However, current cutting blades have short lifespans, requiring frequent replacements, which increases production costs and operational hazards. Furthermore, the blades require external lubricants or coolants to reduce friction and heat, making them relatively cumbersome to use, and resulting in lower cutting efficiency and precision. Therefore, this application proposes a self-lubricating cutting blade production system and method for hydraulic shearing machines. Summary of the Invention

[0004] The technical problem to be solved by this invention is to address the current issues of short blade lifespan, frequent replacement, increased production costs and operational hazards, the need for external lubricants or coolants to reduce friction and heat, relatively cumbersome operation, and low cutting efficiency and precision.

[0005] To address the aforementioned technical problems, this invention provides a self-lubricating blade production system and method for hydraulic shearing machines, the system comprising:

[0006] Raw material collection module: used to collect raw materials and smelt them to obtain mixed molten iron;

[0007] Pretreatment module: used to pretreat the mixed molten iron to obtain molten iron for production, and to quench the molten iron to obtain self-lubricating blade blank;

[0008] Rough machining module: used to rough machine the self-lubricating blade blank according to the drawings to obtain a self-lubricating blade semi-finished product;

[0009] Testing and manufacturing module: used to test the performance of the self-lubricating blade semi-finished product, and to perform precision machining on the qualified self-lubricating blade semi-finished product to obtain a self-lubricating blade for hydraulic shearing.

[0010] Preferably, the raw material acquisition module is specifically used for:

[0011] The raw material collection module is used to collect raw materials, which include 2.8%-3.5% C, 2.0%-3.5% Si, 0.2%-0.6% Mn, 3.5%-4.5% Cr, 0.5%-1.5% Mo, P≤0.02%, S≤0.02% by mass percentage, with the balance being Fe, and the sum of the mass percentages of the above components being 100%.

[0012] The raw material acquisition module is used to send the melting degree N of the raw material to the preprocessing module;

[0013] The raw material acquisition module is used to collect the self-lubricating blade drawing information and send it to the preprocessing module and the roughing module.

[0014] Preferably, the preprocessing module is specifically used for:

[0015] The pretreatment module is used to control the temperature of the continuous casting machine holding furnace according to the degree of smelting N of the raw materials;

[0016] The pretreatment module is specifically used to add spheroidizing agent and inoculant to the continuous casting machine holding furnace according to the degree of smelting of the raw materials N;

[0017] The preprocessing module is used to select a graphite cooling jacket for quenching based on the self-lubricating blade drawing information.

[0018] Preferably, the roughing module is specifically used for:

[0019] The roughing module is used to rough machine the self-lubricating blade blank according to the drawing information of the self-lubricating blade;

[0020] The roughing process includes segmented cutting, milling, and drilling;

[0021] The roughing module is used to perform initial heating and heat preservation on the rough-processed self-lubricating blade blank in a heating furnace, and to monitor the initial heating and heat preservation time in real time. After the preset time is reached, the rough-processed self-lubricating blade blank is transferred to a salt bath furnace for final heating and heat preservation, and the final heating and heat preservation time is monitored in real time. After the preset time is reached, the blank is taken out for cleaning.

[0022] Preferably, the detection and manufacturing module is specifically used for:

[0023] The detection and manufacturing module is used to test the hardness of the self-lubricating blade semi-finished product.

[0024] The finishing process includes grinding.

[0025] Preferably, when the pretreatment module controls the temperature of the continuous casting machine holding furnace according to the degree of smelting of the raw materials, it specifically does so as follows:

[0026] The preprocessing module is used to preset the raw material melting degree matrix A, setting A(A1,A2,A3,A4), where A1 is the first preset raw material melting degree, A2 is the second preset raw material melting degree, A3 is the third preset raw material melting degree, A4 is the fourth preset raw material melting degree, and A1 < A2 < A3 < A4.

[0027] The preprocessing module is used to preset the temperature matrix E of the continuous casting machine holding furnace, setting E(E1, E2, E3, E4), where E1 is the first preset continuous casting machine holding furnace temperature, E2 is the second preset continuous casting machine holding furnace temperature, E3 is the third preset continuous casting machine holding furnace temperature, and E4 is the fourth preset continuous casting machine holding furnace temperature, and 650℃ < E1 < E2 < E3 < E4 < 850℃;

[0028] The processing module is also used to set the temperature of the continuous casting machine holding furnace according to the relationship between the degree of smelting of the raw materials N and the degree of smelting of each preset raw material:

[0029] When N < A1, the first preset continuous casting machine holding furnace temperature E1 is selected as the continuous casting machine holding furnace temperature;

[0030] When A1≤N<A2, the second preset continuous casting machine holding furnace temperature E2 is selected as the continuous casting machine holding furnace temperature;

[0031] When A2≤N<A3, the third preset continuous casting machine holding furnace temperature E3 is selected as the continuous casting machine holding furnace temperature;

[0032] When A3≤N<A4, the fourth preset continuous casting machine holding furnace temperature E4 is selected as the continuous casting machine holding furnace temperature.

[0033] Preferably, the initial heating and heat preservation temperature is 830℃-1100℃, and the heat preservation time is 40min-80min; the final heating and heat preservation temperature is 230℃-430℃, and the heat preservation time is 30min-150min.

[0034] Preferably, the spheroidizing agent is 1.2%-2.3% of the mass of the mixed molten iron, and the inoculant is 1.2%-2.3% of the mass of the mixed molten iron.

[0035] Furthermore, this application also proposes a method for producing self-lubricating blades for hydraulic shearing machines, the method comprising:

[0036] Collect raw materials and smelt them to obtain mixed molten iron;

[0037] The mixed molten iron is pretreated to obtain molten iron for production, and the molten iron for production is quenched to obtain self-lubricating blade blank.

[0038] The self-lubricating blade blank is roughly machined according to the drawings to obtain a self-lubricating blade semi-finished product.

[0039] The self-lubricating blade semi-finished product is subjected to performance testing, and the qualified self-lubricating blade semi-finished product is precision machined to obtain a self-lubricating blade for hydraulic shearing.

[0040] Compared with the prior art, the self-lubricating blade production system and method for hydraulic shearing machines provided in this invention have the following advantages:

[0041] (1) This invention provides a low-cost self-lubricating blade for hydraulic shears, wherein the graphite in its matrix is ​​highly spheroidized and uniformly distributed. These graphite spheres are torn apart by friction during shearing, thereby forming a graphite lubricating layer on the blade surface. Actual testing shows that the friction coefficient of this blade is only 1 / 3 to 1 / 4 of that of existing blades, demonstrating excellent wear resistance.

[0042] (2) The low-cost self-lubricating blade for hydraulic shearing machines of the present invention, during use, is subjected to large surface contact stress, which causes the supersaturated austenite in the matrix structure of the blade surface to transform into martensite. This transformation can increase the surface hardness of the blade to HRC 55-60, while the relative hardness of the blade matrix is ​​relatively low, about HRC 42-50. This combination of hardness and toughness not only significantly improves the wear resistance of the blade, but also effectively reduces the risk of blade wear and chipping.

[0043] (3) The present invention also provides a method for manufacturing low-cost self-lubricating cutting tools for hydraulic shears. This method eliminates the high-temperature forging, annealing, and rough machining quenching followed by tempering processes in the current cutting tool manufacturing process. In addition, by effectively controlling the billet size, the milling allowance can be significantly reduced, further reducing the manufacturing cost of the cutting tool. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0045] Figure 1 This is a schematic diagram of a hydraulic shear self-lubricating blade production system provided in an embodiment of the present invention;

[0046] Figure 2 This is a micrograph of the matrix structure of a low-cost self-lubricating blade for a hydraulic shearing machine after final heating and heat preservation, according to the present invention. Detailed Implementation

[0047] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0048] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0049] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0050] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0051] like Figure 1 As shown, Figure 1 This invention provides a preferred embodiment of a self-lubricating blade production system and method for hydraulic shears, the system comprising:

[0052] Raw material collection module: used to collect raw materials and smelt them to obtain mixed molten iron;

[0053] Pretreatment module: used to pretreat the mixed molten iron to obtain molten iron for production, and to quench the molten iron to obtain self-lubricating blade blank;

[0054] Rough machining module: used to rough machine the self-lubricating blade blank according to the drawings to obtain a self-lubricating blade semi-finished product;

[0055] Testing and manufacturing module: used to test the performance of the self-lubricating blade semi-finished product, and to perform precision machining on the qualified self-lubricating blade semi-finished product to obtain a self-lubricating blade for hydraulic shearing.

[0056] In this preferred embodiment, the raw material acquisition module is specifically used for:

[0057] The raw material collection module is used to collect raw materials, which include 2.8%-3.5% C, 2.0%-3.5% Si, 0.2%-0.6% Mn, 3.5%-4.5% Cr, 0.5%-1.5% Mo, P≤0.02%, S≤0.02% by mass percentage, with the balance being Fe, and the sum of the mass percentages of the above components being 100%.

[0058] The raw material acquisition module is used to send the melting degree N of the raw material to the preprocessing module;

[0059] In a further preferred embodiment, the melting temperature is 1300℃-1450℃.

[0060] The raw material acquisition module is used to collect the self-lubricating blade drawing information and send it to the preprocessing module and the roughing module.

[0061] In this preferred embodiment, the preprocessing module is specifically used for:

[0062] The pretreatment module is used to control the temperature of the continuous casting machine holding furnace according to the degree of smelting N of the raw materials;

[0063] The pretreatment module is specifically used to add spheroidizing agent and inoculant to the continuous casting machine holding furnace according to the degree of smelting of the raw materials N;

[0064] The preprocessing module is used to select a graphite cooling jacket for quenching based on the self-lubricating blade drawing information.

[0065] The pretreatment module is also used to keep the raw material at a constant temperature after mixing it with the spheroidizing agent and the inoculant, and the holding time is 30 min to 50 min.

[0066] The obtained molten iron is rapidly cooled by a graphite cooling jacket selected in advance according to the blade size on a continuous casting machine. The molten iron flowing through the graphite cooling jacket gradually solidifies from the surface layer to the surface layer. Then, it is horizontally pulled out by a traction machine at a certain traction speed to form a steel billet. The steel billet is cut to length according to transportation requirements to obtain a low-cost self-lubricating blade billet. The gradual solidification time is 6-14 minutes, and the traction speed of the traction machine is 3 cm / min-9 cm / min.

[0067] In this preferred embodiment, the roughing module is specifically used for:

[0068] The roughing module is used to rough machine the self-lubricating blade blank according to the drawing information of the self-lubricating blade;

[0069] The roughing process includes segmented cutting, milling, and drilling;

[0070] The roughing module is used to perform initial heating and heat preservation on the rough-processed self-lubricating blade blank in a heating furnace, and to monitor the initial heating and heat preservation time in real time. After the preset time is reached, the rough-processed self-lubricating blade blank is transferred to a salt bath furnace for final heating and heat preservation, and the final heating and heat preservation time is monitored in real time. After the preset time is reached, the blank is taken out for cleaning.

[0071] In this preferred embodiment, the detection and manufacturing module is specifically used for:

[0072] The testing and manufacturing module is used to test the hardness of the self-lubricating blade semi-finished product; the acceptable range for the hardness test is RC 42-50.

[0073] The finishing process includes grinding.

[0074] In this preferred embodiment, the pretreatment module controls the temperature of the continuous casting machine holding furnace according to the degree of smelting of the raw materials, specifically as follows:

[0075] The preprocessing module is used to preset the raw material melting degree matrix A, setting A(A1, A2, A3, A4), where A1 is the first preset raw material melting degree, A2 is the second preset raw material melting degree, A3 is the third preset raw material melting degree, A4 is the fourth preset raw material melting degree, and A1 < A2 < A3 < A4.

[0076] The preprocessing module is used to preset the temperature matrix E of the continuous casting machine holding furnace, setting E(E1, E2, E3, E4), where E1 is the first preset continuous casting machine holding furnace temperature, E2 is the second preset continuous casting machine holding furnace temperature, E3 is the third preset continuous casting machine holding furnace temperature, and E4 is the fourth preset continuous casting machine holding furnace temperature, and 650℃ < E1 < E2 < E3 < E4 < 850℃;

[0077] The processing module is also used to set the temperature of the continuous casting machine holding furnace according to the relationship between the degree of smelting of the raw materials N and the degree of smelting of each preset raw material:

[0078] When N < A1, the first preset continuous casting machine holding furnace temperature E1 is selected as the continuous casting machine holding furnace temperature;

[0079] When A1≤N<A2, the second preset continuous casting machine holding furnace temperature E2 is selected as the continuous casting machine holding furnace temperature;

[0080] When A2≤N<A3, the third preset continuous casting machine holding furnace temperature E3 is selected as the continuous casting machine holding furnace temperature;

[0081] When A3≤N<A4, the fourth preset continuous casting machine holding furnace temperature E4 is selected as the continuous casting machine holding furnace temperature.

[0082] In this preferred embodiment, the initial heating and heat preservation temperature is 830℃-1100℃, and the heat preservation time is 40min-80min; the final heating and heat preservation temperature is 230℃-430℃, and the heat preservation time is 30min-150min.

[0083] In this preferred embodiment, the spheroidizing agent is 1.2%-2.3% of the mass of the mixed molten iron, and the inoculant is 1.2%-2.3% of the mass of the mixed molten iron.

[0084] Furthermore, this application also proposes a method for producing self-lubricating blades for hydraulic shearing machines, the method comprising:

[0085] Collect raw materials and smelt them to obtain mixed molten iron;

[0086] The mixed molten iron is pretreated to obtain molten iron for production, and the molten iron for production is quenched to obtain self-lubricating blade blank.

[0087] The self-lubricating blade blank is roughly machined according to the drawings to obtain a self-lubricating blade semi-finished product.

[0088] The self-lubricating blade semi-finished product is subjected to performance testing, and the qualified self-lubricating blade semi-finished product is precision machined to obtain a self-lubricating blade for hydraulic shearing.

[0089] In summary, this invention provides a production system and method for self-lubricating blades for hydraulic shears. It offers a low-cost production system for self-lubricating blades used in hydraulic shears, where the produced hydraulic blades contain highly spheroidized and uniformly distributed graphite in their matrix. These graphite spheres are torn apart by friction during shearing, forming a graphite lubricating layer on the blade surface. Actual testing shows that the friction coefficient of this blade is only 1 / 3 to 1 / 4 that of existing blades, demonstrating excellent wear resistance. Furthermore, the hydraulic blades produced by this system are subjected to significant surface contact stress during use, causing the supersaturated austenite in the blade's matrix to transform into martensite. This transformation increases the surface hardness of the blade to HRC 55-60, while the relative hardness of the blade matrix is ​​relatively low, approximately HRC 42-50. This combination of hardness and toughness not only significantly improves the wear resistance of the blade but also effectively reduces the risk of blade wear and chipping. A method for manufacturing low-cost self-lubricating blades for hydraulic shears is also provided. This method eliminates the high-temperature forging, annealing, and rough machining followed by quenching and tempering processes required in current blade manufacturing processes. Furthermore, by effectively controlling the size of the steel billet, the milling allowance can be significantly reduced, further lowering the manufacturing cost of the cutting tool.

[0090] The following examples illustrate the performance of self-lubricating hydraulic shear blades manufactured using the system proposed in this application.

[0091] First, weigh out the following components by mass percentage: C 2.8%, Si 2.0%, Mn 0.2%, Cr 3.5%, Mo 0.5%, P 0.02%, S 0.02%, with the balance being Fe. The sum of the mass percentages of these components is 100%. Melt the mixture at 1300 degrees Celsius. When the melting is almost complete, preheat the continuous casting machine's holding furnace to 650 degrees Celsius. Add a spheroidizing agent and an inoculant to perform the spheroidizing and inoculation steps. Hold the mixture in the continuous casting machine's holding furnace for 50 minutes to obtain molten iron. The spheroidizing agent is 1.2% ferrosilicon by mass of the mixed molten iron, and the inoculant is 1.2% rare earth magnesium by mass of the mixed molten iron.

[0092] Secondly, the molten iron is chilled by a graphite cooling jacket selected in advance according to the size of the blade on the continuous casting machine. The molten iron flowing through the graphite cooling jacket is gradually solidified from the surface layer by layer. The solidification time is 6 minutes. Then, the traction machine is pulled out horizontally at a suitable traction speed to form a steel billet. The traction speed of the traction machine is 3 cm / min. The steel billet is cut to length according to transportation requirements to obtain low-cost self-lubricating blade blank.

[0093] Next, the low-cost self-lubricating blade blank is rough-machined. After rough machining, the rough-machined blade is placed in a heating furnace at 830℃ and heated and held for 80 minutes. Then it is transferred to a salt bath furnace at 230℃ and held for 150 minutes. After cleaning, the low-cost self-lubricating blade semi-finished product is obtained.

[0094] The semi-finished products are inspected, and qualified blades are ground to obtain finished shear blades.

[0095] Figure 2 This is a micrograph of the matrix structure of a low-cost self-lubricating blade for hydraulic shearing machines after final stage heating and heat preservation, as per the present invention. The image shows that the blade contains a large number of graphite spheres with a diameter less than 20 μm, providing a friction coefficient less than one-third that of blades like 9CrSi in high-friction working environments. Furthermore, during the blade heat treatment process, when the temperature reaches the austenitizing temperature, the uniformly distributed and dense graphite spheres with a diameter less than 20 μm also act as a "carbon source," ensuring that nearly 50% of the volume fraction of austenite in the blade matrix structure after salt bath isothermal treatment remains supersaturated. During use, surface stress leads to the formation of a martensitic hardened layer, thereby improving the blade's service life.

[0096] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A self-lubricating blade production system for hydraulic shearing machines, characterized in that, The system includes: Raw material collection module: used to collect raw materials and smelt them to obtain mixed molten iron; Pretreatment module: used to pretreat the mixed molten iron to obtain molten iron for production, and to quench the molten iron to obtain self-lubricating blade blank; Rough machining module: used to rough machine the self-lubricating blade blank according to the drawings to obtain a self-lubricating blade semi-finished product; Testing and manufacturing module: used to test the performance of the self-lubricating blade semi-finished product, and to perform precision machining on the qualified self-lubricating blade semi-finished product to obtain a self-lubricating blade for hydraulic shearing machine; The raw material acquisition module is specifically used for: The raw material collection module is used to collect raw materials, which include 2.8%-3.5% C, 2.0%-3.5% Si, 0.2%-0.6% Mn, 3.5%-4.5% Cr, 0.5%-1.5% Mo, P≤0.02%, S≤0.02% by mass percentage, with the balance being Fe, and the sum of the mass percentages of the above components being 100%. The raw material acquisition module is used to send the degree of smelting of the raw materials, N, to the preprocessing module; The raw material acquisition module is used to acquire the self-lubricating blade drawing information and send it to the preprocessing module and the roughing module; The preprocessing module is specifically used for: The pretreatment module is used to control the temperature of the continuous casting machine holding furnace according to the degree of smelting of the raw materials, N. The pretreatment module is specifically used to add spheroidizing agent and inoculant to the continuous casting machine holding furnace according to the degree of raw material melting N; The preprocessing module is used to select a graphite-based cooling jacket for quenching based on the self-lubricating blade drawing information. The pretreatment module, when controlling the temperature of the continuous casting machine holding furnace according to the degree of raw material smelting, specifically does the following: The preprocessing module is used to preset the raw material melting degree matrix A, setting A(A1, A2, A3, A4), where A1 is the first preset raw material melting degree, A2 is the second preset raw material melting degree, A3 is the third preset raw material melting degree, A4 is the fourth preset raw material melting degree, and A1 < A2 < A3 < A4. The preprocessing module is used to preset the continuous casting machine holding furnace temperature matrix E, setting E(E1, E2, E3, E4), where E1 is the first preset continuous casting machine holding furnace temperature, E2 is the second preset continuous casting machine holding furnace temperature, E3 is the third preset continuous casting machine holding furnace temperature, and E4 is the fourth preset continuous casting machine holding furnace temperature, and 650℃ < E1 < E2 < E3 < E4 < 850℃; The processing module is also used to set the temperature of the continuous casting machine holding furnace according to the relationship between the degree of smelting of the raw materials N and the degree of smelting of each preset raw material: When N < A1, the first preset continuous casting machine holding furnace temperature E1 is selected as the continuous casting machine holding furnace temperature; When A1≤N<A2, the second preset continuous casting machine holding furnace temperature E2 is selected as the continuous casting machine holding furnace temperature; When A2≤N<A3, the third preset continuous casting machine holding furnace temperature E3 is selected as the continuous casting machine holding furnace temperature; When A3≤N<A4, the fourth preset continuous casting machine holding furnace temperature E4 is selected as the continuous casting machine holding furnace temperature; The spheroidizing agent is 1.2%-2.3% of the mass of the mixed molten iron, and the inoculant is 1.2%-2.3% of the mass of the mixed molten iron.

2. The self-lubricating blade production system for hydraulic shears according to claim 1, characterized in that, The roughing module is specifically used for: The roughing module is used to rough machine the self-lubricating blade blank according to the drawing information of the self-lubricating blade; The roughing process includes segmented cutting, milling, and drilling; The roughing module is used to perform initial heating and heat preservation on the rough-processed self-lubricating blade blank in a heating furnace, and to monitor the initial heating and heat preservation time in real time. After the preset time is reached, the rough-processed self-lubricating blade blank is transferred to a salt bath furnace for final heating and heat preservation, and the final heating and heat preservation time is monitored in real time. After the preset time is reached, the blank is taken out for cleaning.

3. The self-lubricating blade production system for hydraulic shearing machines according to claim 1, characterized in that, The detection and manufacturing module is specifically used for: The detection and manufacturing module is used to test the hardness of the self-lubricating blade semi-finished product. The finishing process includes grinding.

4. The self-lubricating blade production system for hydraulic shears according to claim 2, characterized in that, The initial heating and heat preservation temperature is 830℃-1100℃, and the heat preservation time is 40min-80min; The final heating and heat preservation temperature is 230℃-430℃, and the heat preservation time is 30min-150min.

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