CN111113793B - Processing technology of non-standard part - Google Patents
Processing technology of non-standard part Download PDFInfo
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- CN111113793B CN111113793B CN201911321887.3A CN201911321887A CN111113793B CN 111113793 B CN111113793 B CN 111113793B CN 201911321887 A CN201911321887 A CN 201911321887A CN 111113793 B CN111113793 B CN 111113793B
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- blank
- limiting
- locking
- standard part
- injection molding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/1769—Handling of moulded articles or runners, e.g. sorting, stacking, grinding of runners
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
- B24B1/04—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes subjecting the grinding or polishing tools, the abrading or polishing medium or work to vibration, e.g. grinding with ultrasonic frequency
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/7686—Measuring, controlling or regulating the ejected articles, e.g. weight control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76177—Location of measurement
- B29C2945/7629—Moulded articles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a processing technology of a non-standard part, relates to the technical field of processing technologies of medical instruments, and aims to solve the problems that when the non-standard part is processed, a workpiece is difficult to fix stably due to the irregular shape of the workpiece, errors in inspection and detection are increased, meanwhile, clamping is easy to cause the situation of falling, and processing time is consumed. Step 1: manufacturing a corresponding press mold according to the form and parameters of the non-standard part, confirming that the mold has no flaw, and assembling the mold on the press; step 2: heating the injection molding material, and performing injection molding after heating to obtain a blank; and step 3: inspecting the first manufactured blank, and clamping by a non-standard part clamp; and 4, step 4: sampling and checking the embryo body; and 5: carrying out ultrasonic polishing; step 6: cleaning, dehydrating and drying; and 7: and packaging the workpiece.
Description
Technical Field
The invention relates to the technical field of medical instrument processing technology, in particular to a processing technology of a non-standard part.
Background
The non-standard parts are mainly other parts which are freely controlled by enterprises and have no strict standard specification set by the country and no relevant parameter specification. The medical instruments are mostly in different forms, and due to the rapid development of medical science and technology, the medical instruments of the non-standard parts are more and more, such as dental straightening equipment, so that the processing technology of the non-standard parts becomes important.
At present, the machining process of the non-standard part on the market is more perfect, but when the non-standard part is machined, the workpiece is difficult to fix stably due to the irregular shape of the workpiece, errors in inspection and detection are increased, meanwhile, clamping is easy to cause the situation of dropping, and machining time is consumed, so that the machining process of the non-standard part is urgently needed in the market to solve the problems.
Disclosure of Invention
The invention aims to provide a processing technology of a non-standard part, which aims to solve the problems that when the non-standard part is processed, workpieces are difficult to fix stably due to the irregular shapes of the workpieces, errors in detection and detection are increased, meanwhile, clamping is easy to cause the situation of falling, and processing time is consumed.
In order to achieve the purpose, the invention provides the following technical scheme: a machining process of a non-standard part comprises the following steps:
step 1: manufacturing a corresponding press mold according to the form and parameters of the non-standard part, confirming that the mold has no flaw, and assembling the mold on the press;
step 2: heating the injection molding material at 180-200 ℃, starting injection molding after heating, wherein the injection molding pressure is 10-50 kg, and taking out after cooling and determining the quality to obtain a blank;
and step 3: the blank after the first manufacture is inspected, when the blank is inspected, the blank is fixed through a nonstandard piece clamp, the blank is firstly prevented between the two nonstandard piece clamps, at the moment, the two nonstandard piece clamps are adjusted to ensure that a limiting strip in the nonstandard piece clamp extends irregularly due to the shape of the blank to ensure that the limiting strip is completely matched with the outline of the blank, at the moment, a finger pressing block is pressed, the finger pressing block and a locking sleeve tilt along with the rotation of a limiting rotating shaft along with the pressing of the finger pressing block, the upper end of an adjusting plate is rotationally connected with the locking sleeve through the rotating shaft, the adjusting plate moves upwards along with the rotation of the rotating shaft, a limiting nail passes through a limiting nail hole to limit the position of the locking sleeve, the position of the adjusting plate is locked, the locking plate moves upwards due to the fixed connection of the adjusting plate and the locking plate, the locking plate is pressed by the limiting strips on two sides, locking plate teeth on the upper end of the locking plate are meshed with the limiting strip teeth on the lower end of the limiting strip, the position of the limiting strip is locked, the blank is clamped by a non-standard part clamp, so that the overall clamping stability is improved, the size of the blank and the existence of injection molding air holes are detected, batch production is carried out after the detection is qualified, if the detection size is unqualified, whether the installation deviation of the mold and the mold exists is checked and adjusted, and injection molding is carried out after the adjustment is finished;
and 4, step 4: the blank is subjected to sampling inspection, the outer surface of the blank is smooth and is free from oil stains, sharp edges, cracks, burrs and attachments, and the roughness of the surface of the blank meets the corresponding product requirements;
and 5: carrying out ultrasonic polishing on the checked blank;
and 5: cleaning, dehydrating and drying;
and 7: and packaging the workpieces, numbering and warehousing.
Preferably, the mold temperature in the injection molding in the step 2 is 55-65 ℃, the injection molding time is 4-6 s, and the pressure maintaining and cooling time is 4-6 s.
Preferably, the ultrasonic polishing of the embryo body in the step 6 specifically comprises:
step 5-1: roughly polishing by adopting a fixed abrasive or an abrasive of 160-180 percent;
step 5-2: fine polishing is carried out, and a free type abrasive is adopted, wherein the abrasive granularity is W40;
step 5-3: and (4) performing fine polishing, and performing dry polishing by adopting an abrasive with the granularity of W5-W3.5 without adding working solution.
Preferably, the dehydration in the step 6 is performed by more than 3
The pressure of the filtered and purified compressed air blows the parts clean, and the surface of the workpiece has no water traces.
Preferably, the workpiece dried in the step 6 is dehydrated and then placed in an electrothermal blowing dry box for drying, and is kept for 3-5 minutes at the temperature of 80-100 ℃.
Preferably, the locking clamp is installed to the upper end of nonstandard piece anchor clamps, and the locking clamp is provided with four, the inside of nonstandard piece anchor clamps is provided with spacing, and spacing is provided with a plurality of, and the spacing rectangle array of a plurality of distributes, the regulating plate is installed to the below of locking clamp, and the regulating plate is provided with four, and is provided with the locking plate between the relative regulating plate, the top of spacing is provided with the limiting plate, and the locking plate is located the below of spacing.
Preferably, the locking clamp includes spacing nail seat, indicates briquetting, spacing pivot, lock sleeve and spacing nail hole, the lock sleeve suit is in the outside of spacing nail seat, spacing nail seat and lock sleeve rotate through spacing pivot to be connected, the spacing nail hole is located the one end of spacing nail seat, indicates the briquetting to be located the one end of lock sleeve, the lock sleeve rotates through the pivot with the regulating plate to be connected.
Preferably, the lower end of the limiting strip is provided with limiting strip teeth, the upper end of the locking plate is provided with locking plate teeth, the locking plate teeth are meshed with the limiting strip teeth, and the distance between the lower ends of the adjacent limiting strip teeth is the same as the size of the lower ends of the two locking plate teeth.
Compared with the prior art, the invention has the beneficial effects that:
1. the clamp can be matched with the surface of the non-standard part by arranging the non-standard part clamp, so that the clamp is more stable when clamping the non-standard part, the locking plate can lock the limiting strip through the limiting teeth between the limiting strip and the locking plate, the clamping of the limiting strip on the non-standard part is realized, and the problems that the workpiece is difficult to be stably fixed due to the irregular shape of the workpiece during the processing of the non-standard part, the errors during the inspection and the detection are increased, the clamping is easy to cause the falling, and the processing time is consumed are solved.
2. The invention realizes the molding of the non-standard part by arranging the injection molding mode, can realize the molding requirement on the concave-convex surface of the non-standard part, has short molding time and improves the working efficiency.
3. The polishing can be matched with the polishing of the concave-convex surface of the non-standard part by arranging ultrasonic polishing, so that the polishing effect is improved.
Drawings
FIG. 1 is a top view of a non-standard part clamp of the present invention;
FIG. 2 is a schematic view of a non-standard part clamp according to the present invention;
FIG. 3 is a partial enlarged view of the area A of the present invention
Fig. 4 is a connection relationship diagram of the spacing strip and the locking plate of the present invention.
In the figure: 1. a non-standard part clamp; 2. a locking clamp; 3. a limiting strip; 4. an adjusting plate; 5. a limiting plate; 6. a locking plate; 7. a limit nail seat; 8. pressing the blocks; 9. a limiting rotating shaft; 10. a locking sleeve; 11. limiting nail holes; 12. limiting rack teeth; 13. and locking the plate teeth.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1:
a machining process of a non-standard part comprises the following steps:
step 1: manufacturing a corresponding press mold according to the form and parameters of the non-standard part, confirming that the mold has no flaw, and assembling the mold on the press;
step 2: heating the injection molding material at 180 ℃, starting injection molding after heating, wherein the injection molding pressure is 30kg, and taking out after cooling and determining the quality to obtain a blank;
and step 3: the blank after the first manufacturing is inspected, when the inspection is carried out, the blank is fixed through the nonstandard piece clamps 1, the blank is firstly prevented between the two nonstandard piece clamps 1, at the moment, the two nonstandard piece clamps 1 are adjusted to ensure that the limiting strips 3 in the nonstandard piece clamps 1 are irregularly stretched due to the shape of the blank, the limiting strips 3 are completely matched with the outline of the blank, at the moment, the finger pressing block 8 is pressed, the finger pressing block 8 and the locking sleeve 10 tilt along with the rotation of the limiting rotating shaft 9 along with the pressing of the finger pressing block 8, because the upper end of the adjusting plate 4 is rotatably connected with the locking sleeve 10 through the rotating shaft, the adjusting plate 4 moves upwards along with the finger pressing block, the limiting nail passes through the limiting nail hole 11, the position of the locking sleeve 10 is limited, the position of the adjusting plate 4 is also locked, and because the adjusting plate 4 is fixedly connected with the locking plate 6, the pressing of the limiting strips 3 at two sides enables the locking plate 6 to move upwards, the locking plate teeth 13 at the upper end of the locking plate 6 are meshed with the limiting strip teeth 12 at the lower end of the limiting strip 3, so that the position of the limiting strip 3 is locked, the blank is clamped by the non-standard part clamp 1 at the moment, the stability of integral clamping is improved, the size of the blank and whether injection molding air holes exist are detected, batch production is carried out after the detection is qualified, if the detection size is unqualified, whether deviation exists in installation of a mold and the mold is checked and adjusted, and injection molding is carried out after the adjustment is finished;
and 4, step 4: the blank is subjected to sampling inspection, the outer surface of the blank is smooth and is free from oil stains, sharp edges, cracks, burrs and attachments, and the roughness of the surface of the blank meets the corresponding product requirements;
and 5: carrying out ultrasonic polishing on the checked blank;
step 6: cleaning, dehydrating and drying;
and 7: and packaging the workpieces, numbering and warehousing.
Further, in the step 2, the mold temperature in the injection molding is 55 ℃, the injection molding time is 4s, and the pressure maintaining and cooling time is 4 s.
Further, the step 6 of ultrasonic polishing of the embryo body specifically comprises:
step 5-1: roughly polishing by using a fixed abrasive or a 160 abrasive;
step 5-2: fine polishing is carried out, and a free type abrasive is adopted, wherein the abrasive granularity is W40;
step 5-3: and (4) performing fine polishing, namely performing dry polishing by adopting an abrasive with the granularity of W5 without adding working liquid.
Further, the dehydration in step 6 is carried out by more than 3
The pressure of the filtered and purified compressed air blows the parts clean, and the surface of the workpiece has no water traces.
Further, the workpiece dried in the step 6 is dehydrated and then placed in an electrothermal blowing dry box for drying, and is kept for 3 minutes at 80 ℃.
Further, the locking clamp 2 is installed to the upper end of nonstandard piece anchor clamps 1, and the locking clamp 2 is provided with four, the inside of nonstandard piece anchor clamps 1 is provided with spacing 3, spacing 3 is provided with a plurality of, and the 3 rectangular array of the spacing 3 of a plurality of distributes, regulating plate 4 is installed to the below of locking clamp 2, regulating plate 4 is provided with four, and be provided with locking plate 6 between the relative regulating plate 4, the top of spacing 3 is provided with limiting plate 5, and locking plate 6 is located the below of spacing 3.
Further, the lock clamp 2 comprises a limit nail seat 7, a finger pressing block 8, a limit rotating shaft 9, a lock sleeve 10 and a limit nail hole 11, the lock sleeve 10 is sleeved outside the limit nail seat 7, the limit nail seat 7 and the lock sleeve 10 are rotatably connected through the limit rotating shaft 9, the limit nail hole 11 is located at one end of the limit nail seat 7, the finger pressing block 8 is located at one end of the lock sleeve 10, and the lock sleeve 10 is rotatably connected with the adjusting plate 4 through the rotating shaft.
Furthermore, the lower end of the limiting strip 3 is provided with limiting strip teeth 12, the upper end of the locking plate 6 is provided with locking plate teeth 13, the locking plate teeth 13 are meshed with the limiting strip teeth 12, and the distance between the lower ends of the adjacent limiting strip teeth 12 is the same as the size of the lower ends of the two locking plate teeth 13.
Example 2:
a machining process of a non-standard part comprises the following steps:
step 1: manufacturing a corresponding press mold according to the form and parameters of the non-standard part, confirming that the mold has no flaw, and assembling the mold on the press;
step 2: heating the injection molding material at 200 ℃, starting injection molding after heating is finished, wherein the injection molding pressure is 45kg, and taking out after cooling and determining the quality to obtain a blank;
and step 3: the blank after the first manufacturing is inspected, when the inspection is carried out, the blank is fixed through the nonstandard piece clamps 1, the blank is firstly prevented between the two nonstandard piece clamps 1, at the moment, the two nonstandard piece clamps 1 are adjusted to ensure that the limiting strips 3 in the nonstandard piece clamps 1 are irregularly stretched due to the shape of the blank, the limiting strips 3 are completely matched with the outline of the blank, at the moment, the finger pressing block 8 is pressed, the finger pressing block 8 and the locking sleeve 10 tilt along with the rotation of the limiting rotating shaft 9 along with the pressing of the finger pressing block 8, because the upper end of the adjusting plate 4 is rotatably connected with the locking sleeve 10 through the rotating shaft, the adjusting plate 4 moves upwards along with the finger pressing block, the limiting nail passes through the limiting nail hole 11, the position of the locking sleeve 10 is limited, the position of the adjusting plate 4 is also locked, and because the adjusting plate 4 is fixedly connected with the locking plate 6, the pressing of the limiting strips 3 at two sides enables the locking plate 6 to move upwards, the locking plate teeth 13 at the upper end of the locking plate 6 are meshed with the limiting strip teeth 12 at the lower end of the limiting strip 3, so that the position of the limiting strip 3 is locked, the blank is clamped by the non-standard part clamp 1 at the moment, the stability of integral clamping is improved, the size of the blank and whether injection molding air holes exist are detected, batch production is carried out after the detection is qualified, if the detection size is unqualified, whether deviation exists in installation of a mold and the mold is checked and adjusted, and injection molding is carried out after the adjustment is finished;
and 4, step 4: the blank is subjected to sampling inspection, the outer surface of the blank is smooth and is free from oil stains, sharp edges, cracks, burrs and attachments, and the roughness of the surface of the blank meets the corresponding product requirements;
and 5: carrying out ultrasonic polishing on the checked blank;
step 6: cleaning, dehydrating and drying;
and 7: and packaging the workpieces, numbering and warehousing.
Further, in the step 2, the mold temperature in the injection molding is 5 ℃, the injection molding time is 6s, and the pressure maintaining and cooling time is 6 s.
Further, the step 6 of ultrasonic polishing of the embryo body specifically comprises:
step 5-1: roughly polishing by adopting fixed abrasive or 180 abrasive;
step 5-2: fine polishing is carried out, and a free type abrasive is adopted, wherein the abrasive granularity is W40;
step 5-3: and (4) carrying out fine polishing, and carrying out dry polishing by adopting an abrasive material with W3.5 granularity without adding working liquid.
Further, the dehydration in step 6 is carried out by more than 3
The pressure of the filtered and purified compressed air blows the parts clean, and the surface of the workpiece has no water traces.
Further, the workpiece dried in the step 6 is dehydrated and then placed in an electrothermal blowing dry box for drying, and is kept for 5 minutes at the temperature of 100 ℃.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (5)
1. A machining process of a non-standard part is characterized by comprising the following steps:
step 1: manufacturing a corresponding press mold according to the form and parameters of the non-standard part, confirming that the mold has no flaw, and assembling the mold on the press;
step 2: heating the injection molding material at 180-200 ℃, starting injection molding after heating, wherein the injection molding pressure is 10-50 kg, and taking out after cooling and determining the quality to obtain a blank;
and step 3: the blank after the first manufacturing is inspected, when the blank is inspected, the blank is fixed through the nonstandard part clamps (1), the blank is firstly prevented between the two nonstandard part clamps (1), at the time, the two nonstandard part clamps (1) are adjusted to ensure that the limiting strip (3) in the nonstandard part clamps (1) is irregularly stretched due to the shape of the blank, the limiting strip (3) is completely matched with the outline of the blank, at the time, the finger pressing block (8) is pressed, the upper end of the adjusting plate (4) is rotatably connected with the locking sleeve (10) through a rotating shaft along with the rotation of the limiting rotating shaft (9) along with the pressing of the finger pressing block (8), so that the adjusting plate (4) also moves upwards along with the rotation, the limiting nail penetrates through the limiting nail hole (11), the position of the locking sleeve (10) is limited, and the position of the adjusting plate (4) is locked, the adjusting plate (4) is fixedly connected with the locking plate (6), so that the locking plate (6) moves upwards by pressing the limiting strips (3) at two sides, the locking plate teeth (13) at the upper end of the locking plate (6) are meshed with the limiting strip teeth (12) at the lower end of the limiting strips (3), the positions of the limiting strips (3) are locked, the blank is clamped by the non-standard part clamp (1) at the moment, so that the overall clamping stability is improved, the size of the blank and whether injection molding air holes exist are detected, batch production is carried out after the blank is detected to be qualified, if the detected size is unqualified, whether deviation exists in installation of the mold and the mold is checked and adjusted, and injection molding is carried out after the adjustment is finished;
and 4, step 4: the blank is subjected to sampling inspection, the outer surface of the blank is smooth and is free from oil stains, sharp edges, cracks, burrs and attachments, and the roughness of the surface of the blank meets the corresponding product requirements;
and 5: carrying out ultrasonic polishing on the checked blank;
step 6: cleaning, dehydrating and drying;
and 7: packing the workpieces, numbering and warehousing;
the locking device comprises a non-standard part clamp (1), wherein locking clamps (2) are arranged at the upper end of the non-standard part clamp (1), four locking clamps (2) are arranged, limiting strips (3) are arranged inside the non-standard part clamp (1), a plurality of limiting strips (3) are arranged, the limiting strips (3) are distributed in a rectangular array mode, adjusting plates (4) are arranged below the locking clamps (2), four adjusting plates (4) are arranged, locking plates (6) are arranged between the corresponding adjusting plates (4), limiting plates (5) are arranged above the limiting strips (3), and the locking plates (6) are located below the limiting strips (3); the locking clamp (2) comprises a limiting nail seat (7), a finger pressing block (8), a limiting rotating shaft (9), a locking sleeve (10) and a limiting nail hole (11), the locking sleeve (10) is sleeved outside the limiting nail seat (7), the limiting nail seat (7) and the locking sleeve (10) are rotatably connected through the limiting rotating shaft (9), the limiting nail hole (11) is located at one end of the limiting nail seat (7), the finger pressing block (8) is located at one end of the locking sleeve (10), and the locking sleeve (10) is rotatably connected with the adjusting plate (4) through the rotating shaft; the lower extreme of spacing strip (3) is provided with spacing rack (12), the upper end of locking plate (6) is provided with locking plate tooth (13), and locking plate tooth (13) and spacing rack (12) mesh mutually, and the distance between adjacent spacing rack (12) lower extreme is the same with the size of two locking plate tooth (13) lower extremes.
2. The process for manufacturing a non-standard part according to claim 1, wherein the mold temperature in the injection molding in the step 2 is 55 ℃ to 65 ℃, the injection molding time is 4s to 6s, and the pressure maintaining and cooling time is 4s to 6 s.
3. The machining process of the non-standard part according to claim 1, wherein the ultrasonic polishing of the blank in the step 5 is specifically as follows:
step 5-1: roughly polishing by adopting a fixed abrasive or an abrasive of 160-180 percent;
step 5-2: fine polishing is carried out, and a free type abrasive is adopted, wherein the abrasive granularity is W40;
step 5-3: and (4) performing fine polishing, and performing dry polishing by adopting an abrasive with the granularity of W5-W3.5 without adding working solution.
4. A process of machining a non-standard part according to claim 1, wherein: the dehydration in the step 6 is carried out by more than 3
The pressure of the filtered and purified compressed air blows the parts clean, and the surface of the workpiece has no water traces.
5. A process of machining a non-standard part according to claim 1, wherein: and (3) dehydrating the workpiece dried in the step (6), placing the dehydrated workpiece in an electrothermal blowing drying oven, and keeping the dehydrated workpiece at the temperature of 80-100 ℃ for 3-5 minutes.
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| CN201911321887.3A CN111113793B (en) | 2019-12-20 | 2019-12-20 | Processing technology of non-standard part |
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| CN201911321887.3A CN111113793B (en) | 2019-12-20 | 2019-12-20 | Processing technology of non-standard part |
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| CN111113793A CN111113793A (en) | 2020-05-08 |
| CN111113793B true CN111113793B (en) | 2021-11-16 |
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