CN111975374B - Shaping device for heating machine base and flatness shaping treatment process for heating machine base - Google Patents
Shaping device for heating machine base and flatness shaping treatment process for heating machine base Download PDFInfo
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- CN111975374B CN111975374B CN202010789442.4A CN202010789442A CN111975374B CN 111975374 B CN111975374 B CN 111975374B CN 202010789442 A CN202010789442 A CN 202010789442A CN 111975374 B CN111975374 B CN 111975374B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/04—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/10—Bending specially adapted to produce specific articles, e.g. leaf springs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/32—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks
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Abstract
The invention discloses a shaping device for a heating machine base, which comprises a thermal shaping furnace, a balancing weight and a mica sheet, wherein an in-furnace platform of the thermal shaping furnace is used for placing the heating machine base, the mica sheet is arranged on the in-furnace platform, one side of the mica sheet is attached to the in-furnace platform, the other side of the mica sheet is attached to the lower surface of the heating machine base, and the balancing weight is laid on the upper surface of the heating machine base. The contact area of the platform in the furnace and the heating machine base is made of stainless steel, the flatness of the platform in the furnace is less than or equal to 0.5mm, and the surface of the platform is pure flat. The counterweight blocks are laid at the center and four sides of the heating machine base to be shaped, the counterweight blocks are laid at the center position according to a cross shape, and a layer of counterweight blocks is laid; the four edges are paved into two layers in a staggered way. And paving a plurality of mica sheets in the area to be covered by the shaping heating machine base on the platform in the furnace. The invention also provides a flatness shaping treatment process for the heating machine base, which comprises the following steps: incoming inspection-thermal shaping-stripping-grinding-sand blasting-anodic oxidation.
Description
Technical Field
The invention belongs to the technical field of heat treatment, and particularly relates to a shaping device for a heating machine base and a flatness shaping treatment process for the heating machine base.
Background
In the manufacturing process of the liquid crystal display panel, a Chemical Vapor Deposition (CVD) process is used to deposit some functional films on the surface of the glass substrate. In the chemical vapor deposition process, a glass substrate needs to be heated, and heating bases of large generations (G8.5 and G10.5) have strict requirements on the surface flatness and the surface appearance of the substrate in order to ensure uniform heating and uniform film formation of the substrate.
The heating machine base (hereinafter referred to as SUSC) is an aluminum product in the liquid crystal display industry at present, G8.5 (length: 2580mm, width: 2290mm, thickness: 60 mm) and above products have larger sizes, the product needs to carry out glass bead spraying operation on the surface in the production process, and after spraying, the flatness of the product is increased by 1.0-1.5mm and is umbrella-shaped because the glass beads impact the surface of the aluminum product to cause plastic deformation of the aluminum product; SUSC conventional process: the process comprises the steps of incoming material inspection, stripping, grinding, sand blasting, pre-anode, thermal shaping, stripping, grinding and anodic oxidation, the process has long construction period, the production efficiency is greatly influenced, the process procedures are more, the production cost is increased, and the risk of causing three damages to the product is increased.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a shaping device for a heating machine base, which has a simple structure and is convenient to use; the invention also provides a flatness shaping treatment process for the heating machine base.
In order to achieve the purpose, the technical scheme of the invention is as follows: the utility model provides a shaping device for heating frame which characterized in that: the heating device comprises a thermal shaping furnace, a balancing weight and mica sheets, wherein a platform in the furnace of the thermal shaping furnace is used for placing a heating machine base, the mica sheets are arranged on the platform in the furnace, one side of each mica sheet is attached to the platform in the furnace, the other side of each mica sheet is attached to the lower surface of the heating machine base, and the balancing weight is laid on the upper surface of the heating machine base.
Furthermore, the contact area of the platform in the furnace and the heating machine base is a stainless steel product, the flatness of the platform in the furnace is less than or equal to 0.5mm, and the surface shape is pure flat.
Furthermore, the balancing weight is made of iron, is cylindrical and is provided with a hanging ring.
Furthermore, a plurality of mica sheets are laid in an area, required to be covered, of the heating base to be shaped on the platform in the furnace, the mica sheets comprise a first mica sheet, a second mica sheet and a third mica sheet, the first mica sheet is arranged in the center of the coverage area of the heating base, and the second mica sheet and the third mica sheet are sequentially arranged outwards.
Furthermore, the distance from the outer contour of the third mica sheet to the outer contour of the heating base is 1/6 +/-2 mm of the length and width of the heating base to be shaped, and the second mica sheet is located between the first mica sheet and the third mica sheet.
Further, the counterweight blocks are laid in the center and four sides of the heating machine base to be shaped, the counterweight blocks are laid in a cross shape at the center, and a layer of counterweight blocks is laid; the four edges are paved into two layers in a staggered way.
Based on the shaping device for the heating machine base, the invention also relates to a flatness shaping treatment process for the heating machine base, and the flatness shaping treatment process for the heating machine base comprises the following steps: incoming inspection-thermal shaping-stripping-grinding-sand blasting-anodic oxidation.
Further, the thermal shaping specifically includes:
1) cleaning a platform in the thermal sizing furnace, and ensuring that the platform is clean, tidy and free of impurities so as to avoid damaging the surface of the heating machine base;
2) defining the size of a heating base, coiling an area to be reshaped and covered by the heating base on a platform of a thermal reshaping furnace, filling a plurality of mica sheets in the area, filling a first mica sheet in the center of the area to be reshaped and covered by the heating base, taking the first mica sheet as the center, sequentially dispersing and arranging a second mica sheet and a third mica sheet in a square shape to the periphery, and uniformly dividing the distance between cushion blocks of the same circle of mica sheets;
3) hoisting the heating machine base to a preselected area by using a travelling crane, ensuring that the size of the heating machine base is consistent with that of a set area, controlling the deviation within 10mm, and enabling the reference surface of the heating machine base to be downward to be in contact with the mica sheet; after the product is placed, two layers of heat insulation cotton are paved on the product in a transverse and vertical crossed mode, the heat insulation cotton can be spliced, the product is fully covered, but the edges of each layer of heat insulation cotton are welted, and a single layer of heat insulation cotton cannot be stacked, so that the situation that a counterweight block is not stably placed is avoided;
4) paving a balancing weight: laying weight blocks at the central position of the heating machine base according to a cross shape, and only laying one layer; laying two layers on four sides of the heating machine base, and laying the layers in a staggered manner, wherein all the balancing weights have the same size and weight;
5) wiring, setting temperature and time: connecting a circuit externally connected with the control cabinet with a heating wire of the heating machine base, and starting a control power supply to start heating; the total heating time is set to 480min, the upper temperature limit is set to 400 ℃, the current is set to be maximum, the control cabinet needs to be powered off after the heating time is finished, the temperature is automatically reduced, and external force cannot be directly used for suddenly reducing so as to prevent the product from deforming;
6) when the temperature is reduced to about 30 ℃, the heat insulation clothes, the heat insulation boots and the like can be worn to lift the balancing weight and the heating machine base out of the shaping furnace, the heat shaping of the heating machine base product is finished, the flatness of the detected product is about 0.7mm, and the appearance is like a bowl shape.
Further, the peeling and grinding are as follows: stripping the heating machine base by using a nitric acid solution and a sodium hydroxide solution, cleaning by using pure water and drying; and polishing the reference surface of the heating machine base by using No. 120 abrasive paper, wherein the roughness is controlled to be below 1.0.
Furthermore, in the sand blasting process, the sand discharging pressure is controlled to be set to be 0.22-0.30 MPa, 1.5-2.0 mm glass beads are selected as sand materials, the gun moving speed is set to be 200-500 mm/s, the gun moving track is in a bow shape, and the gun is continuously and automatically moved at a constant speed until the surface scanning is finished, so that no sand blasting blind spot is formed on the surface of the heating machine base; the glass bead can not be sprayed for 2 times, and must be sprayed for 1 time, if the machine is abnormally stopped in the midway, the sand blasting can be continued after reshaping, and the roughness after sand blasting needs to be controlled to be 20 +/-2 mu m.
The technical scheme adopted by the invention has the advantages that:
1. the flatness shaping treatment process comprises the steps of incoming material inspection, shaping, stripping, grinding, sand blasting and anodic oxidation, and compared with the prior art, the process reduces pre-anode and stripping and grinding after pre-anode, so that the process is more optimized.
2. In the hot shaping process, the heating function of the heating machine base is utilized to carry out hot shaping, the heating machine base is heated quickly, the shaping time is short, the hoisting of the balancing weight is less, the hoisting operation is short, and the production efficiency is high.
3. The invention is directly shaped after checking, the shape of the heating machine base is shaped into a bowl shape with a concave middle and a high periphery, the flatness is controlled to be 0.5-0.9mm, and then the heating machine base is sprayed into an umbrella shape with a concave middle and a high periphery by utilizing spraying glass beads. The glass beads are sprayed to make roughness on the heating machine base, and the roughness and the flatness can be simultaneously processed by the process, so that the production time and the production cost are greatly reduced, and the product efficiency is improved.
Drawings
The invention is described in further detail below with reference to the following figures and detailed description:
FIG. 1 is a schematic view of the arrangement of mica sheets according to the present invention;
FIG. 2 is a schematic view of the arrangement of the weight member of the present invention.
The labels in the above figures are respectively: 1. a platform in the furnace; 2. a balancing weight; 3. mica sheets; 31. a first mica sheet; 32. a second mica sheet; 33. a third mica sheet; 4. the frame is heated.
Detailed Description
In the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "planar direction", "circumferential", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but 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.
As shown in fig. 1 and 2, the shaping device for the heating machine base comprises a thermal shaping furnace, a balancing weight 2 and a mica sheet 3, wherein an inner platform 1 of the thermal shaping furnace is used for placing a heating machine base 4, the mica sheet 3 is arranged on the inner platform 1, one side of the mica sheet 3 is attached to the inner platform 1, the other side of the mica sheet 3 is attached to the lower surface of the heating machine base 4, and the balancing weight 2 is laid on the upper surface of the heating machine base 4.
The contact area of the furnace inner platform 1 and the heating machine base 4 is made of stainless steel, and the size of the stainless steel is customized according to the size of the heating machine base 4 larger than G10.5, preferably, the length of the stainless steel is as follows: 3800mm, Width: 3500mm, thickness more than 50mm, and generally thicker, the platform is not easy to generate plastic deformation after multiple thermal correction; the flatness of the platform 1 in the furnace is less than or equal to 0.5mm, and the surface shape is pure flat.
The balancing weight 2 is made of ironwork and can be hoisted by a magnet type hoisting disc; the balancing weight 2 is cylindrical, and a lifting ring is arranged on the balancing weight 2. Preferably, the size of the balancing weight 2 is phi 450mm plus or minus 60mm plus or minus 1mm, the center of the balancing weight 2 is provided with an M20 threaded hole, and a lifting ring can be installed to be lifted by a crane.
The counterweight block 2 is laid at the center and four sides of the heating machine base 4 to be shaped, the counterweight block 2 is laid at the center position according to a cross shape, and a layer is laid; the four edges are paved into two layers in a staggered way. All the clump weights are of uniform size and weight.
A plurality of mica sheets 3 are laid in an area, required to be covered, of the reshaping heating machine base 4 on the furnace platform 1, the mica sheets 3 comprise first mica sheets 31, second mica sheets 32 and third mica sheets 33, the first mica sheets 31 are arranged in the center of the area, required to be covered, of the reshaping heating machine base 4, the second mica sheets 32 and the third mica sheets 33 are sequentially arranged outwards, and the second mica sheets 32 and the third mica sheets 33 are square and surround the first mica sheets 31. The distance from the outer contour of the third mica sheet 33 to the outer contour of the heating base 4 is 1/6 +/-2 mm of the length and width of the heating base 4 to be shaped, the second mica sheet 32 is positioned between the first mica sheet 31 and the third mica sheet 33, and the distance between the mica sheets in the same circle is equal. The thickness of the first mica sheet 31 is 0.6-0.8mm, the thickness of the second mica sheet 32 is 0.4-0.5mm, and the thickness of the third mica sheet 33 is 0.3-0.4 mm.
Based on the shaping device for the heating machine base, the invention also provides a flatness shaping treatment process for the heating machine base, and the flatness shaping treatment process for the heating machine base comprises the following steps: incoming inspection-thermal shaping-stripping-grinding-sand blasting-anodic oxidation.
The thermal shaping specifically includes:
1) cleaning a platform in the thermal sizing furnace, and ensuring that the platform is clean, tidy and free of impurities so as to avoid damaging the surface of the heating machine base;
2) the size of the heating machine base 4 is determined, an area to be covered by the shaping heating machine base is circled on the thermal shaping furnace platform, a plurality of mica sheets 3 are arranged in the area, and the mica sheets are arranged according to the size of a product.
The arrangement mode of the mica sheets is as follows: a first mica sheet 31 is padded at the center of the coverage area of the heating base 4 to be shaped, a second mica sheet 32 and a third mica sheet 33 are sequentially arranged in a square shape and divergently around the first mica sheet 31 as the center, and the distance between the mica sheet cushion blocks in the same circle is uniformly divided; the distance from the outer contour of the third mica sheet 33 to the outer contour of the heating base 4 is 1/6 +/-2 mm of the length and width of the heating base 4 to be shaped, the second mica sheet 32 is positioned between the first mica sheet 31 and the third mica sheet 33, and the distance between the mica sheets in the same circle is equal. The thickness of the first mica sheet 31 is 0.6-0.8mm, the thickness of the second mica sheet 32 is 0.4-0.5mm, and the thickness of the third mica sheet 33 is 0.3-0.4 mm.
3) The heating machine base 4 is hoisted to a preselected area by using a traveling crane, the size of the heating machine base 4 is ensured to be consistent with that of a set area, the deviation is controlled within 10mm, and the reference surface of the heating machine base 4 is required to be downward to be in contact with the mica sheet 3; after the product is placed, two layers of heat insulation cotton are paved on the product in a transverse and vertical crossed mode, the heat insulation cotton can be spliced, the product is fully covered, but the edges of each layer of heat insulation cotton are welted, and a single layer of heat insulation cotton cannot be stacked, so that the situation that a counterweight block is not stably placed is avoided;
4) paving a balancing weight: the weight blocks are arranged at the central position of the heating machine base 4 according to the cross shape, and only one layer is laid; laying two layers on four sides of the heating machine base 4 in a staggered manner, wherein all the balancing weights have the same size and weight;
5) wiring, setting temperature and time: connecting a circuit externally connected with the control cabinet with a heating wire of the heating machine base 4, and starting a control power supply to heat; the total heating time is set to 480min, the upper temperature limit is set to 400 ℃, the current is set to be maximum so as to facilitate rapid heating, the control cabinet needs to be powered off after the heating time is over, the temperature is automatically reduced, and external force cannot be directly used for suddenly reducing so as to prevent the product from deforming;
6) when the temperature is reduced to about 30 ℃, the heat insulation clothes, the heat insulation boots and the like can be worn to lift the balancing weight and the heating machine base 4 out of the shaping furnace, the heat shaping of the product of the heating machine base 4 is finished, the flatness of the detected product is about 0.7mm, and the shape is bowl-shaped.
Stripping and grinding: stripping the heating machine base 4 by using a nitric acid solution and a sodium hydroxide solution, cleaning by using pure water and drying; the reference surface of the heating base 4 was polished with 120# sandpaper, and the roughness was controlled to 1.0 or less.
Sand blasting: controlling the sand discharge pressure to be 0.22-0.30 MPa in the sand blasting process, selecting 1.5-2.0 mm glass beads as sand materials, setting the gun moving speed to be 200-500 mm/s, and continuously and automatically moving the gun at a constant speed along a gun moving track in a bow shape until the surface scanning is finished, so as to ensure that the surface of the heating base 4 has no sand blasting blind spot; the glass bead can not be sprayed for 2 times, and must be sprayed for 1 time, if the machine is abnormally stopped in the midway, the sand blasting can be continued after reshaping, and the roughness after sand blasting needs to be controlled to be 20 +/-2 mu m.
After the sand blasting is finished, the surface needs to be ground, and surface burrs and sand pit tips are removed; the grinding adopts a pneumatic grinder, the rotating speed is adjusted to be 6000r/min, and the abrasive paper adopts 800# sponge abrasive paper. After grinding, the detected flatness is 0.8mm on average, the appearance is umbrella-shaped, and after sand blasting shaping, the requirements that the internal control flatness is less than or equal to 1.0mm and the appearance is umbrella-shaped are met.
Anodic oxidation: firstly, removing surface stains, dust, grease and the like through degreasing, and washing with water; then, the mixture enters alkali (sodium hydroxide solution) for corrosion, the tip and the burrs on the surface are corroded, the chemical polishing effect is achieved, and water washing is carried out; then the mixture enters acid (nitric acid solution) for neutralization, and dust generated by alkali corrosion is removed, so that the dust removing effect is achieved; then washing the surface of the product by a high-pressure water gun of 20 MPa; finally, mixed acid (sulfuric acid and oxalic acid) is added for surface anodic oxidation coating. The process has no influence on the flatness and the appearance of the product.
The flatness shaping treatment process comprises the steps of incoming material inspection, shaping, stripping, grinding, sand blasting and anodic oxidation, and compared with the prior art, the process reduces pre-anode and stripping and grinding after pre-anode, so that the process is more optimized.
In the hot shaping process, the heating function of the heating machine base is utilized to carry out hot shaping, the heating machine base is heated quickly, the shaping time is short, the hoisting of the balancing weight is less, the hoisting operation is short, and the production efficiency is high.
The invention is directly shaped after checking, the shape of the heating machine base is shaped into a bowl shape with a concave middle and a high periphery, the flatness is controlled to be 0.5-0.9mm, and then the heating machine base is sprayed into an umbrella shape with a concave middle and a high periphery by utilizing spraying glass beads. The glass beads are sprayed to make roughness on the heating machine base, and the roughness and the flatness can be simultaneously processed by the process, so that the production time and the production cost are greatly reduced, and the product efficiency is improved.
The invention is described above with reference to the accompanying drawings, it is obvious that the specific implementation of the invention is not limited by the above-mentioned manner, and it is within the scope of the invention to adopt various insubstantial modifications of the technical solution of the invention or to apply the concept and technical solution of the invention directly to other occasions without modification.
Claims (7)
1. The utility model provides a shaping device for heating frame which characterized in that: the device comprises a thermal shaping furnace, a balancing weight (2) and mica sheets (3), wherein a furnace platform (1) of the thermal shaping furnace is used for placing a heating machine base (4), the mica sheets (3) are arranged on the furnace platform (1), one side of each mica sheet (3) is attached to the furnace platform (1), the other side of each mica sheet (3) is attached to the lower surface of the heating machine base (4), and the balancing weight (2) is laid on the upper surface of the heating machine base (4); the contact area of the platform (1) in the furnace and the heating machine base (4) is a stainless steel product, the platform flatness of the platform (1) in the furnace is less than or equal to 0.5mm, and the surface shape is pure flat; a plurality of mica sheets (3) are laid in an area, required to be covered, of the heating base (4) to be shaped on the furnace inner platform (1), the mica sheets (3) comprise first mica sheets (31), second mica sheets (32) and third mica sheets (33), the first mica sheets (31) are arranged in the center of the covering area of the heating base (4), and the second mica sheets (32) and the third mica sheets (33) are sequentially arranged outwards; the thickness of the first mica sheet (31) is 0.6-0.8mm, the thickness of the second mica sheet (32) is 0.4-0.5mm, and the thickness of the third mica sheet (33) is 0.3-0.4 mm; the counterweight blocks (2) are laid at the center and four sides of the heating machine base (4) to be shaped, the counterweight blocks (2) are laid at the center position according to a cross shape, and a layer is laid; the four edges are paved with two layers in total and are paved in a staggered way, and the size of the balancing weight (2) is phi 450mm plus or minus 60mm plus or minus 1 mm.
2. A shaping device for a heating block as claimed in claim 1, wherein: the counterweight block (2) is made of iron, the counterweight block (2) is cylindrical, and a lifting ring is arranged on the counterweight block (2).
3. A shaping device for a heating block according to claim 2, wherein: the distance from the outer contour of the third mica sheet (33) to the outer contour of the heating base (4) is 1/6 +/-2 mm of the length and width of the heating base (4) to be shaped, and the second mica sheet (32) is positioned between the first mica sheet (31) and the third mica sheet (33).
4. A flatness shaping treatment process for a heating machine base is characterized by comprising the following steps of: the shaping device for the heating machine base according to any one of claims 1 to 3, wherein the flatness shaping process for the heating machine base comprises: incoming inspection-thermal shaping-stripping-grinding-sand blasting-anodic oxidation.
5. The flatness shaping process for a heating block according to claim 4, wherein: the thermal shaping specifically comprises:
1) cleaning a platform in the thermal sizing furnace, and ensuring that the platform is clean, tidy and free of impurities so as to avoid damaging the surface of the heating machine base;
2) defining the size of a heating base (4), coiling an area to be reshaped and covered by the heating base on a platform of a thermal reshaping furnace, filling a plurality of mica sheets (3) in the area, filling a first mica sheet (31) in the center of the area covered by the heating base (4), taking the first mica sheet (31) as the center, sequentially arranging a second mica sheet (32) and a third mica sheet (33) in a square shape in a radiating manner, and uniformly dividing the distance between cushion blocks of the same circle of mica sheets;
3) the heating machine base (4) is hoisted to a preselected area by using a traveling crane, the size of the heating machine base (4) is ensured to be consistent with that of a set area, the deviation is controlled within 10mm, and the reference surface of the heating machine base (4) is required to be downward to be contacted with the mica sheet (3); after the product is placed, two layers of heat insulation cotton are paved on the product in a transverse and vertical crossed mode, the heat insulation cotton can be spliced, the product is fully covered, the edges of each layer of heat insulation cotton are attached, and a single layer of heat insulation cotton cannot be stacked;
4) paving a balancing weight: a weight block is arranged at the central position of the heating machine base (4) according to the shape of a cross, and only one layer is laid; laying two layers on four sides of the heating machine base (4), and laying the layers in a staggered manner, wherein all the balancing weights have the same size and weight;
5) wiring, setting temperature and time: connecting a circuit externally connected with the control cabinet with a heating wire of the heating machine base (4), and turning on a control power supply to start heating; the total heating time is set to 480min, the upper temperature limit is set to 400 ℃, the current is set to be maximum, the control cabinet needs to be powered off after the heating time is finished, the temperature is automatically reduced, and external force cannot be directly used for suddenly reducing so as to prevent the product from deforming;
6) when the temperature is reduced to about 30 ℃, the heat insulation clothes and the heat insulation boots can be worn to lift the balancing weight and the heating machine base (4) out of the shaping furnace, the heat shaping of the product of the heating machine base (4) is finished, and the flatness of the detected product is about 0.7mm and the shape is like a bowl shape.
6. The flatness shaping process for a heating block according to claim 5, wherein: the stripping and grinding are as follows: stripping the heating machine base (4) by using a nitric acid solution and a sodium hydroxide solution, cleaning by using pure water and drying; and (3) polishing the reference surface of the heating machine base (4) by using No. 120 abrasive paper, wherein the roughness is controlled to be below 1.0.
7. The flatness shaping process for a heating block according to claim 6, wherein: controlling the sand discharge pressure to be 0.22-0.30 MPa in the sand blasting process, selecting 1.5-2.0 mm glass beads as sand materials, setting the gun moving speed to be 200-500 mm/s, and continuously and automatically moving the gun at a constant speed along a gun moving track in a bow shape until the surface scanning is finished, so as to ensure that no sand blasting blind spot exists on the surface of the heating base (4); the glass bead can not be sprayed for 2 times, and must be sprayed for 1 time, if the machine is abnormally stopped in the midway, the sand blasting can be continued after reshaping, and the roughness after sand blasting needs to be controlled to be 20 +/-2 mu m.
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| CN110961489A (en) * | 2019-12-20 | 2020-04-07 | 芜湖通潮精密机械股份有限公司 | Flatness thermal shaping treatment process of gas diffuser |
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| CN110512253A (en) * | 2019-09-23 | 2019-11-29 | 芜湖通潮精密机械股份有限公司 | A kind of process of surface treatment before the anodic oxidation for heating pedestal |
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