CN109820300B - Mumojin and its production method - Google Patents
Mumojin and its production method Download PDFInfo
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- CN109820300B CN109820300B CN201910180528.4A CN201910180528A CN109820300B CN 109820300 B CN109820300 B CN 109820300B CN 201910180528 A CN201910180528 A CN 201910180528A CN 109820300 B CN109820300 B CN 109820300B
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Abstract
The invention discloses mu gold, which is prepared by taking any of 14k gold, 14k platinum, 14k rose gold, 18k platinum, 18k rose gold, 9k platinum and 9k rose gold as raw materials; the invention also discloses a manufacturing method of the mu jin, which comprises the steps of sawing metal sheets according to a certain size, polishing and cleaning surface oxides, sequentially overlapping the metal sheets according to designed grains, fixing the metal sheets by using a steel plate, putting the metal sheets into a muffle furnace for heating and melting for a certain time, taking out, cooling, polishing, annealing and forging, and processing the polished metal plate by adopting any one or more of five methods of drilling, milling, twisting, cutting, rolling and corroding to obtain the mu jin with the designed grains. The inventive mu-mu gold and the preparation method greatly reduce the loss of noble metals, and the yield of the obtained mu-mu gold is greatly improved by oxidation resistance treatment.
Description
Technical Field
The invention relates to the technical field of jewelry processes and metal manufacturing processes. More particularly, the invention relates to Mucrogol and a manufacturing method thereof.
Background
The concept of the mu jin process is originally derived from the Tou Zhu paint process in China, the year 1192 of the Gong Yuan is transferred to Japan, and the technology is applied to metal materials by Japanese craftsmen while inheriting the technology. The principle of the mu-mu gold lies in the fusion of different metal materials, and under the action of high temperature and pressure, atoms on the metal surfaces which are in contact with each other are diffused and naturally fused, so that a whole is formed. In the process of rolling and forging metal, the traditional manufacturing process of the mu jin has the defects of low yield, high price, difficult acceptance by common people, difficult popularization and the like due to large loss of noble metal and improper oxidation resistance treatment.
Disclosure of Invention
The invention aims to provide the mu gold and the manufacturing method thereof, which greatly reduce the loss of noble metals, and greatly improve the yield of finished products obtained by oxidation resistance treatment.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided mugwort gold manufactured using any of 14k gold, 14k platinum, 14k rose gold, 18k platinum, 18k rose gold, 9k platinum, and 9k rose gold as raw materials.
The invention also provides a manufacturing method of the wood gold, which comprises the following steps:
s1: sawing the selected raw materials into metal sheets with the size not less than 10cm, the length 10cm, the width 1cm and the thickness;
s2: polishing the sawed raw material by using 2000-mesh abrasive paper, then cleaning oxides on the surface of the raw material, and sequentially superposing the metal sheets according to designed lines;
s3: clamping the superposed metal plates by using two steel plates and fixing the two steel plates, coating loess powder on the surfaces of the steel plates contacting the metal plates before the process, putting the fixed steel plates into a copper foil bag or a 316 stainless steel foil bag, adding powdered carbon blocks at the opening of the copper foil bag or the 316 stainless steel foil bag, and then sealing the opening of the copper foil bag or the 316 stainless steel foil bag;
s4: preheating a muffle furnace, wherein the temperature in the muffle furnace is set to be 50-100 ℃ lower than the melting point of the raw material with the lowest melting point temperature in the raw materials, after preheating is finished, putting the copper foil bag or the 316 stainless steel foil bag with the steel plate into the muffle furnace, and continuously heating and preserving heat for a period of time until small molten beads appear on the metal plate;
s5: opening the muffle furnace, taking out the copper foil bag or the 316 stainless steel foil bag, opening the opening of the copper foil bag or the 316 stainless steel foil bag after the temperature is cooled to room temperature, taking out the metal plate from the steel plate, polishing and trimming the edge of the metal plate, and repeatedly annealing and forging the metal plate by using a hammer until the thickness of the metal plate is 5-8 mm;
s6: the metal plate is processed by any one or more of five methods of drilling, milling, twisting, cutting, rolling and corroding.
Preferably, the heating time in step S4 is at least half an hour.
Preferably, when the metal plate is annealed and forged in step S5, the edge of the metal plate is forged, and then the center of the metal plate is forged, and annealing is required for each full-face forging.
Preferably, the steel plate in the step S3 is 310S stainless steel.
Preferably, the temperature in the muffle furnace in the step S4 is 850-950 ℃.
Preferably, the step S5 of grinding and trimming the edge of the metal plate uses a grinding device, which includes:
the workbench is fixedly supported to be horizontal through four supporting legs;
the pair of door-shaped frames are relatively fixed on the left side and the right side of the workbench, a connecting support is fixedly connected between the rear ends of the upper frames of the pair of door-shaped frames, a clamping groove is formed in the upper frames and the rear frames of the door-shaped frames, a rack is clamped in the clamping groove in a sliding manner, first gears are meshed on the racks, the first gears are fixedly connected with a driving shaft which is positioned right above the connecting support, a second gear is fixedly sleeved in the middle of the driving shaft and meshed with a third gear, the third gear is driven to rotate by a motor which is fixed on the connecting support, a cross support is further arranged between the upper frames of the pair of door-shaped frames, the two ends of the cross support are respectively and fixedly connected with the end parts of the pair of racks which are positioned on the upper frames on the pair of door-shaped frames, the cross support is in a horizontal U shape, the opening of the cross support faces the front side of the workbench, the polishing device is provided with external threads, one end of the rotating rod is driven to rotate by a motor fixed on one end part of the cross brace, the other end of the rotating rod is fixed on the other end part of the cross brace by a bearing, a fixed block is sleeved on the rotating rod in a threaded fit manner and fixedly connected with a telescopic oil cylinder, and a telescopic rod of the telescopic oil cylinder is vertically connected with a polishing head;
and the pair of clamping mechanisms are oppositely arranged on the left side and the right side of the workbench and are positioned between the pair of door-shaped frames, and the metal plate is positioned between the pair of clamping mechanisms and is clamped by the pair of clamping mechanisms.
Preferably, the clamping mechanism includes:
a fixing plate which is fixed on the workbench in parallel to the door-shaped frame and is provided with a horizontal through hole which penetrates along the left-right direction;
one side surface of the attaching plate is always attached to one side surface of the metal plate;
the top column is internally provided with a pair of slideways which are oppositely arranged along the front and back directions of the workbench, the parts of the slideways positioned at the left side and the right side of the top column are provided with openings penetrating through the outside, the cross sections of the slideways and the openings are T-shaped, the parts of the slideways positioned at the middle part of the top column are provided with sealing shells integrally formed with the top column, the shells are provided with external threads, and nuts are sleeved on the shells positioned at the left side and the right side of the fixing plate;
a pair of slide rods which are respectively fitted in the pair of slide ways in a sliding manner;
the pair of hinged rods are respectively and oppositely positioned at the front side and the rear side of the top column, one end of each hinged rod is hinged to one side of the attaching plate, and the other end of each hinged rod is hinged to one end part of the inner side of the corresponding sliding rod;
a pair of push plates which are respectively fixed at the other end parts of the outer sides of the pair of slide rods and are arranged outwards through the opening perpendicular to the top column;
the limiting plate is parallel to the fixing plate and located on the outer side of the fixing plate, the limiting plate is provided with a pair of inner threaded holes, a pair of threaded rods are matched in the limiting plate respectively and are opposite to the pair of push plates respectively, a spring is further sleeved on the threaded rods, one end of the threaded rods is fixed on the limiting plate, and the other end of the threaded rods is fixed on the push plates.
Preferably, the clamping groove is provided with a circular arc chamfer at the joint of the upper frame and the rear frame of the door-shaped frame, the bottom surface of the clamping groove is provided with a fixed sliding rail, and the bottom surface of the rack is provided with a plurality of rollers which are respectively matched with the sliding rail without falling off.
The invention at least comprises the following beneficial effects:
the inventive gold is easy to process, and will not be oxidized during wearing; compared with the traditional manufacturing process, the manufacturing method of the mu gold reduces the manufacturing cost greatly, reduces the purification technology, greatly reduces the loss of noble metals, and can reduce the loss by 15 to 20 percent compared with the traditional manufacturing method.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a front view of a grinding apparatus of the present invention;
FIG. 2 is a side view of the portal frame of the present invention;
FIG. 3 is a top view of the portal frame of the present invention;
FIG. 4 is a top view of one of the stages of the polishing apparatus of the present invention;
figure 5 is a top view of another working condition of the grinding unit table of the present invention.
Description of reference numerals:
1. the working table comprises a working table, 2, supporting legs, 3, a door-shaped frame, 4, a connecting support, 5, a rack, 6, a first gear, 7, a driving shaft, 8, a second gear, 9, a third gear, 10, a cross support, 11, a rotating rod, 12, a fixing block, 13, a polishing head, 14, a fixing plate, 15, a laminating plate, 16, a top column, 17, a slide way, 18, a shell, 19, a nut, 20, a sliding rod, 21, a hinge rod, 22, a push plate, 23, a limiting plate, 24, a threaded rod, 25, a spring, 26 and a metal plate.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials, if not otherwise specified, are commercially available; in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
The invention provides mu gold, which is prepared by taking any of 14k gold, 14k platinum, 14k rose gold, 18k platinum, 18k rose gold, 9k platinum and 9k rose gold as raw materials. According to the difference of simple grain or complexity of the designed gold grains, the types of the selected raw materials are different, the gold grains are mainly made of noble metals, and several or all of the listed raw materials are selected randomly to make the gold grains.
The invention also provides a manufacturing method of the wood gold, which comprises the following steps:
s1: sawing the selected raw materials into metal sheets with the size not less than 10cm, the length 10cm, the width 1cm and the thickness;
s2: polishing and flattening the sawed raw material by using 2000-mesh abrasive paper, cleaning oxide on the surface of the raw material, wherein the surface of the raw material can be cleaned by using acetone or a detergent and a toothbrush, sequentially superposing the metal sheets according to designed lines, and according to different lines, technicians clearly know how to sequentially arrange and superpose the cleaned metal sheets, wherein the mu-mesh gold obtained by one embodiment is star-shaped, and the superposition is carried out according to the sequence of two sides of platinum and the middle of other metals;
s3: clamping the superposed metal plates by using two steel plates and fixing the two steel plates in a screw fixing mode; before the process, the surface of the steel plate, which is in contact with the metal plate, is coated with the loess powder, the purpose of coating the loess powder is to prevent the metal plate and the steel plate from being bonded together in the subsequent heating and melting process, so that the low loss and no loss of precious metals are ensured to a great extent, and a certain antioxidation effect is achieved; placing the fixed steel plate into a copper foil bag or a 316 stainless steel foil bag, wherein the copper foil bag or the 316 stainless steel foil bag is a sealing structure with only one opening, the specific shape of the sealing structure is not limited, then adding a carbon block in a crushed powder shape at the opening of the copper foil bag or the 316 stainless steel foil bag, wherein the carbon block can absorb oxygen to prevent oxidation of a metal plate, then sealing the opening of the copper foil bag or the 316 stainless steel foil bag, and after adding the carbon block, reserving one eighth of space at the opening to ensure that the opening can be sealed;
s4: preheating a muffle furnace, wherein the temperature in the muffle furnace is set to be 50-100 ℃ lower than the melting point of the raw material with the lowest melting point temperature in the raw materials, the temperature is generally between 850-950 ℃, the temperature depends on the metal with the lowest melting point in each metal raw material, after the preheating is finished, the copper foil bag or the 316 stainless steel foil bag provided with the steel plate is placed at the accurate position in the muffle furnace, namely, the metal sheets are sequentially overlapped from top to bottom, the heating and the heat preservation are continuously carried out until small molten beads appear on the metal plate, the heating time is at least more than half an hour, and the common time is 40-50 minutes;
s5: opening the muffle furnace, taking out the copper foil bag or the 316 stainless steel foil bag, opening an opening of the copper foil bag or the 316 stainless steel foil bag after the temperature is cooled to room temperature, taking out the metal plate from the steel plate, polishing and trimming the edge of the metal plate, and repeatedly annealing and forging the metal plate by using a hammer until the thickness of the metal plate is about 5mm-8 mm; when the metal plate is annealed and forged, firstly, the edge of the metal plate is forged, and then, the center of the metal plate is forged, so that the edge corners are prevented from being peeled off; meanwhile, in the annealing and forging process, annealing is needed to be carried out every time the forging is carried out completely;
s6: processing the metal plate by any one or more of drilling, milling, twisting, cutting, rolling and corroding; after the treatment is finished, the required lines can be selected to be made into jewelry such as rings, necklaces, bracelets and the like, and the inlaying design of the gems and semi-gems can also be matched; after the finished product is prepared, a protective layer is plated, so that the finished product is brighter and can be kept for a longer time; in one embodiment, the metal plate is processed by: firstly, pressing the sheet to a proper width through a sheet pressing machine, then twisting and extending the sheet to a set line, or corroding part of metal by using a corrosion process, or drilling the metal material by using a carving mode and a drilling and milling mode until the sheet is star-shaped.
The traditional method is poor in anti-oxidation treatment, and oxidized parts need to be polished completely in subsequent work, so that the overall weight is reduced.
In step S4, the control of the temperature and time of the muffle furnace treatment results in a large loss of manpower and material resources, and the desired effect can be achieved only when the control is good. The principle of processing in a muffle furnace is to form a diffusion bond between each layer of sheet metal, and there are many ways to join metals, but diffusion bonding is one of the few ways that do not require metal filling and do not have highly specialized equipment. The atoms in the solid are in constant motion and if the two solids are brought into close contact (by pressing them together) the atoms will start to diffuse into each other through the interface. They diffuse more rapidly if the temperature is increased, and heating the metal to within 50-100 of its melting point achieves the fastest diffusion without actually melting the metal, with the ultimate goal of interdiffusing the metals. The time is also very specific, limited to as long as an hour, to make the texture clearer without complete mixing.
In the step S5, a grinding device is used for grinding and trimming the edge of the metal plate 26, and the grinding device includes:
the workbench 1 is fixedly supported to be horizontal through four supporting legs 2;
a pair of door-shaped frames 3, which are relatively fixed on the left and right sides of the workbench 1, a connecting support 4 is fixedly connected between the rear ends of the upper frames of the door-shaped frames 3, a clamping groove is arranged on the upper frames and the rear frames of the door-shaped frames 3, a rack 5 is slidably clamped in the clamping groove, the rack 5 is engaged with a first gear 6, the pair of first gears 6 are fixedly connected through a driving shaft 7 positioned right above the connecting support 4, a second gear 8 is fixedly sleeved in the middle of the driving shaft 7, the second gear 8 is engaged with a third gear 9, the third gear 9 is driven to rotate by a motor fixed on the connecting support 4, a cross support 10 is further arranged between the upper frames of the door-shaped frames 3, the two ends of the cross support 10 are respectively and fixedly connected with the end parts of the pair of racks 5 positioned on the upper frames of the door-shaped frames 3, the cross support 10 is in a horizontal U shape, an opening of the cross brace 10 faces the front side of the workbench 1, a rotating rod 11 is arranged in the opening of the cross brace 10 and is provided with an external thread, one end of the rotating rod 11 is driven to rotate by a motor fixed on one end of the cross brace 10, the other end of the rotating rod is fixed on the other end of the cross brace 10 by a bearing, a fixed block 12 is sleeved on the rotating rod 11 in a threaded matching manner and is fixedly connected with a telescopic oil cylinder, and a telescopic rod of the telescopic oil cylinder is vertically connected with a polishing head 13; the clamping groove is provided with an arc chamfer at the joint of the upper frame and the rear frame of the door-shaped frame 3, the bottom surface of the clamping groove is provided with a fixed slide rail, and the bottom surface of the rack 5 is provided with a plurality of rollers which are respectively matched on the slide rail without falling off;
and a pair of clamping mechanisms which are oppositely arranged at the left side and the right side of the workbench 1 and are positioned between the pair of door-shaped frames 3, and the metal plate material 26 is positioned between the pair of clamping mechanisms and is clamped by the pair of clamping mechanisms.
In the technical scheme, the metal plate 26 is placed on the workbench 1, then the clamping and fixing positions are carried out through the pair of clamping mechanisms, and the metal plate 26 is polished through the polishing head 13; the grinding head 13 moves up and down through the up-and-down expansion of the telescopic oil cylinder; the grinding head 13 moves left and right by driving the rotating rod 11 to rotate through the motor, the rotating rod 11 rotates to drive the fixed block 12 to move left and right, and the rotating rod 11 is fixed through the bearing, so that the limiting can be realized and the rotation without interference can be ensured; the front and back movement of the polishing head 13 is realized by driving a third gear 9 to rotate through a motor on the connecting support 4, so that a second gear 8 is driven to rotate, the second gear 8 further drives a driving shaft 7 to rotate, the driving shaft 7 rotates to drive a pair of first gears 6 on the left side and the right side to rotate, the pair of first gears 6 drive a pair of racks 5 on the left side and the right side to slide along the clamping grooves, and when the pair of racks 5 synchronously slide, the pair of racks 5 drive cross supports 10 fixed with the racks 5 to move in the front and back direction, so that the polishing head 13 is driven to move back; the polishing head 13 moves randomly according to the position to be polished; one embodiment of the rack 5 engaging and sliding in the slot is as follows: the rack 5 is a soft rack which can be bent to a certain degree, so that the rack can slide along the length direction of the clamping groove all the time, the rack 5 and the clamping groove are matched with each other without falling off through the idler wheels and the sliding rails, the rack 5 moves along the length direction of the clamping groove, and the length direction of the clamping groove is the line of the upper frame and the rear frame of the door-shaped frame 3.
In another aspect, the clamping mechanism includes:
a fixing plate 14 fixed to the table 1 in parallel with the gate frame 3, the fixing plate 14 having a horizontal through hole penetrating in the left-right direction;
a joint plate 15, one side of which is always jointed with one side of the metal plate 26;
a top column 16, one end of which is hinged to the middle of the other side face of the attaching plate 15, the other end of the top column 16 just penetrates through the through hole and is located on the outer side of the fixing plate 14, a pair of slide ways 17 are arranged inside the top column 16 and are oppositely arranged along the front and back direction of the workbench 1, the parts of the pair of slide ways 17 located on the left and right sides of the top column 16 are provided with openings penetrating through the outside, the cross sections of the slide ways 17 and the openings are T-shaped, the parts of the pair of slide ways 17 located in the middle of the top column 16 are provided with sealing shells 18 integrally formed with the top column 16, the shells 18 are provided with external threads, and the shells 18 are sleeved with;
a pair of slide rods 20 which are respectively fitted slidably in the pair of slide ways 17;
a pair of hinge rods 21, which are respectively and oppositely positioned at the front and rear sides of the top pillar 16, wherein one end of each hinge rod 21 is hinged at one side of the joint plate 15, and the other end is hinged at one end part of the inner side of the slide rod 20;
a pair of push plates 22 fixed to the other ends of the outer sides of the pair of slide bars 20, respectively, and disposed perpendicularly to the top post 16 through the opening to face outward;
the limiting plate 23 is parallel to the fixing plate 14 and located on the outer side of the fixing plate 14, the limiting plate 23 is provided with a pair of internal thread holes, a pair of threaded rods 24 are respectively matched in the limiting plate 23 and are respectively opposite to the pair of push plates 22, the threaded rods 24 are further sleeved with springs 25, one ends of the springs are fixed on the limiting plate 23, and the other ends of the springs are fixed on the push plates 22.
In the above technical solution, since the metal plate 26 of the present invention is made of precious metal, the value is relatively high, and the metal plate is used for manufacturing jewelry after the processing is completed, the operation process needs to be paid extra attention during the polishing process to prevent the metal plate 26 of the present invention from being damaged. When the existing polishing device polishes, in order to ensure that the polished metal plate 26 does not move, firstly, a clamping mechanism is required to clamp the metal plate 26, and then polishing operation is performed; in order to adapt to metal plates 26 with different sizes and metal plates 26 with different placing positions to clamp and polish, the clamping mechanism of the existing polishing device is improved, and the polishing device is invented; if the metal plate 26 is always placed in one position, the clamped position is inconvenient to polish, so that the position of the metal plate 26 needs to be properly adjusted in the polishing process, and the clamping mechanism needs to be suitable for clamping the metal plate 26 after the position is adjusted; the invention adopts pure manual clamping adjustment to the metal plate 26, and can better control the clamping force so as to better protect the metal plate 26 from being damaged.
One working state of the metal plate 26 is shown in fig. 4, the slideways 17 on the front and back sides of the top post 16 are equivalent to that a channel is arranged inside the top post 16 along the length direction of the top post, the channel penetrates through the outer part on the left and right sides of the top post 16 to form an opening, the channel in the middle of the top post 16 is not penetrated to form the shell 18, the slideways 17 are in sliding fit with the slide rods 20, and the slide rods 20 and the push plates 22 are equivalent to form an L shape; the top column 16 tightly supports the metal plate 26, and is limited by the nuts 19 at two sides, and the threaded rod 24 rotates to tightly support the push plate 22, so that the hinge rod 21 is limited. When the metal plate 26 needs to be rotated to another state, as shown in fig. 5, when the metal plate 26 is rotated, the nut 19 is firstly rotated towards the left and right sides of the top pillar 16, so that the top pillar 16 can move left and right, and the threaded rod 24 rotates towards the outer side, so that the push plate 22 can also move left and right, the moving space of the hinge rods 21 is released, the top pillar 16 moves towards the inner side respectively, and moves to abut against the side edge of the metal plate 26, and then the nut 19 rotates to both sides of the fixed plate 14 to limit the position of the top pillar 16, in the moving process of the top pillar 16, the joint plate 15 naturally follows to rotate to abut against the side edge of the metal plate 26, the joint plate 15 can push the pair of hinge rods 21 at both sides to rotate, when the pair of hinge rods 21 rotates, the slide rods 20 to the left and right sides, the push plate 22 also follows to move towards the left and right sides, on the one hand, the other hand, the movement of the push plate 22, on the other hand, the metal plate 26 of the top column 16 can rotate too fast in the moving process, so that the slow rotating position can be guaranteed, then the push plate 22 is tightly supported through the rotation of the threads in the spring 25, and further the attaching plate 15 is tightly supported by the hinge rod 21, so that the metal plate 26 is stably clamped and fixed.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (6)
1. The manufacturing method of the wood mesh gold is characterized by comprising the following steps:
s1: sawing any of selected 14k gold, 14k platinum, 14k rose gold, 18k platinum, 18k rose gold, 9k platinum and 9k rose gold into metal sheets with the size not less than 10cm, the length 10cm, the width 1cm and the thickness;
s2: polishing the sawed raw material by using 2000-mesh abrasive paper, then cleaning oxides on the surface of the raw material, and sequentially superposing the metal sheets according to designed lines;
s3: clamping the superposed metal plates by using two steel plates and fixing the two steel plates, coating loess powder on the surfaces of the steel plates contacting the metal plates before the process, putting the fixed steel plates into a copper foil bag or a 316 stainless steel foil bag, adding powdered carbon blocks at the opening of the copper foil bag or the 316 stainless steel foil bag, and then sealing the opening of the copper foil bag or the 316 stainless steel foil bag;
s4: preheating a muffle furnace, wherein the temperature in the muffle furnace is set to be 50-100 ℃ lower than the melting point of the raw material with the lowest melting point temperature in the raw materials, after preheating is finished, putting the copper foil bag or the 316 stainless steel foil bag with the steel plate into the muffle furnace, and continuously heating and preserving heat for a period of time until small molten beads appear on the metal plate;
s5: opening the muffle furnace, taking out the copper foil bag or the 316 stainless steel foil bag, opening the opening of the copper foil bag or the 316 stainless steel foil bag after the temperature is cooled to room temperature, taking out the metal plate from the steel plate, polishing and trimming the edge of the metal plate, and repeatedly annealing and forging the metal plate by using a hammer until the thickness of the metal plate is 5-8 mm;
s6: processing the metal plate by any one or more of drilling, milling, twisting, cutting, rolling and corroding;
in step S5, a polishing device is used to polish and finish the edge of the metal plate, and the polishing device includes:
the workbench is fixedly supported to be horizontal through four supporting legs;
the pair of door-shaped frames are relatively fixed on the left side and the right side of the workbench, a connecting support is fixedly connected between the rear ends of the upper frames of the pair of door-shaped frames, a clamping groove is formed in the upper frames and the rear frames of the door-shaped frames, a rack is clamped in the clamping groove in a sliding manner, first gears are meshed on the racks, the first gears are fixedly connected with a driving shaft which is positioned right above the connecting support, a second gear is fixedly sleeved in the middle of the driving shaft and meshed with a third gear, the third gear is driven to rotate by a motor which is fixed on the connecting support, a cross support is further arranged between the upper frames of the pair of door-shaped frames, the two ends of the cross support are respectively and fixedly connected with the end parts of the pair of racks which are positioned on the upper frames on the pair of door-shaped frames, the cross support is in a horizontal U shape, the opening of the cross support faces the front side of the workbench, the polishing device is provided with external threads, one end of the rotating rod is driven to rotate by a motor fixed on one end part of the cross brace, the other end of the rotating rod is fixed on the other end part of the cross brace by a bearing, a fixed block is sleeved on the rotating rod in a threaded fit manner and fixedly connected with a telescopic oil cylinder, and a telescopic rod of the telescopic oil cylinder is vertically connected with a polishing head;
the pair of clamping mechanisms are oppositely arranged at the left side and the right side of the workbench and positioned between the pair of door-shaped frames, and the metal plate is positioned between the pair of clamping mechanisms and clamped by the pair of clamping mechanisms;
the clamping mechanism includes:
a fixing plate which is fixed on the workbench in parallel to the door-shaped frame and is provided with a horizontal through hole which penetrates along the left-right direction;
one side surface of the attaching plate is always attached to one side surface of the metal plate;
the top column is internally provided with a pair of slideways which are oppositely arranged along the front and back directions of the workbench, the parts of the slideways positioned at the left side and the right side of the top column are provided with openings penetrating through the outside, the cross sections of the slideways and the openings are T-shaped, the parts of the slideways positioned at the middle part of the top column are provided with sealing shells integrally formed with the top column, the shells are provided with external threads, and nuts are sleeved on the shells positioned at the left side and the right side of the fixing plate;
a pair of slide rods which are respectively fitted in the pair of slide ways in a sliding manner;
the pair of hinged rods are respectively and oppositely positioned at the front side and the rear side of the top column, one end of each hinged rod is hinged to one side of the attaching plate, and the other end of each hinged rod is hinged to one end part of the inner side of the corresponding sliding rod;
a pair of push plates which are respectively fixed at the other end parts of the outer sides of the pair of slide rods and are arranged outwards through the opening perpendicular to the top column;
the limiting plate is parallel to the fixing plate and located on the outer side of the fixing plate, the limiting plate is provided with a pair of inner threaded holes, a pair of threaded rods are matched in the limiting plate respectively and are opposite to the pair of push plates respectively, a spring is further sleeved on the threaded rods, one end of the threaded rods is fixed on the limiting plate, and the other end of the threaded rods is fixed on the push plates.
2. The method of claim 1, wherein the heating in step S4 is performed for at least half an hour.
3. The method of claim 1, wherein in the step S5, when the sheet metal is annealed and forged, the edges of the sheet metal are forged, and then the center of the sheet metal is forged, and annealing is performed every full forging.
4. The method of claim 1, wherein the steel plate in step S3 is 310S stainless steel.
5. The method for making mu gold according to claim 1, wherein the temperature in the muffle furnace in the step S4 is 850-950 ℃.
6. The method for manufacturing gold grain as claimed in claim 1, wherein the slot is provided with a circular arc chamfer at the joint of the upper frame and the rear frame of the door-shaped frame, the bottom surface of the slot is provided with a fixed slide rail, and the bottom surface of the rack is provided with a plurality of rollers which are respectively fitted on the slide rail without being separated from each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910180528.4A CN109820300B (en) | 2019-03-11 | 2019-03-11 | Mumojin and its production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910180528.4A CN109820300B (en) | 2019-03-11 | 2019-03-11 | Mumojin and its production method |
Publications (2)
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