CN114571549A - Radiation protection multiply wood - Google Patents

Radiation protection multiply wood Download PDF

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Publication number
CN114571549A
CN114571549A CN202210194537.0A CN202210194537A CN114571549A CN 114571549 A CN114571549 A CN 114571549A CN 202210194537 A CN202210194537 A CN 202210194537A CN 114571549 A CN114571549 A CN 114571549A
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CN
China
Prior art keywords
willow
veneer
multilayer board
radiation protection
rotary cutter
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Pending
Application number
CN202210194537.0A
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Chinese (zh)
Inventor
雷震东
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Nanjing X Ray Protection Technology Co ltd
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Nanjing X Ray Protection Technology Co ltd
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Publication date
Application filed by Nanjing X Ray Protection Technology Co ltd filed Critical Nanjing X Ray Protection Technology Co ltd
Priority to CN202210194537.0A priority Critical patent/CN114571549A/en
Publication of CN114571549A publication Critical patent/CN114571549A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
    • B27K5/001—Heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
    • B27K5/04—Combined bleaching or impregnating and drying of wood
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L1/00—Debarking or removing vestiges of branches from trees or logs; Machines therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L5/00—Manufacture of veneer ; Preparatory processing therefor
    • B27L5/02—Cutting strips from a rotating trunk or piece; Veneer lathes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B21/042—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of wood
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/10—Next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/14—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood board or veneer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1207—Heat-activated adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1284—Application of adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/16—Drying; Softening; Cleaning
    • B32B38/164—Drying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F1/00—Shielding characterised by the composition of the materials
    • G21F1/02—Selection of uniform shielding materials
    • G21F1/10—Organic substances; Dispersions in organic carriers
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F1/00—Shielding characterised by the composition of the materials
    • G21F1/12—Laminated shielding materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K2240/00—Purpose of the treatment
    • B27K2240/20—Removing fungi, molds or insects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1207—Heat-activated adhesive
    • B32B2037/1215—Hot-melt adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2535/00—Medical equipment, e.g. bandage, prostheses or catheter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2571/00—Protective equipment

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)

Abstract

The invention relates to the technical field of multilayer board manufacturing, in particular to a radiation protection multilayer board, and provides the following scheme aiming at the problem that the success rate of multilayer board manufacturing is low due to the fact that the existing multilayer board manufacturing technology has fewer raw material processing processes, wherein the scheme comprises the following steps: s1: raw material acquisition, S2, pretreatment, S3: real-time observation, S4: deinsectization treatment, S5: the invention aims to ensure the quality of raw materials and improve the success rate of multilayer board manufacturing by processing the raw materials for multiple times, and simultaneously perfects the manufacturing process of the multilayer board and improves the quality of the manufactured multilayer board by observing and processing the multilayer board in real time in the manufacturing process of the multilayer board.

Description

Radiation protection multiply wood
Technical Field
The invention relates to the technical field of multilayer board manufacturing, in particular to a radiation protection multilayer board.
Background
The plywood, also called plywood, is a product which has been circulated in the furniture market for a long time, and the raw materials of the plywood comprise various materials such as poplar, eucalyptus, fir, birch and the like. In recent years, due to the continuous emergence of new processes and new technologies, the development and application of multilayer boards are greatly expanded, the application field of materials is continuously extended, and at present, radiation protection multilayer boards are mostly used for manufacturing protection cabins for medical use.
However, the existing multilayer board manufacturing technology has the problem that the success rate of multilayer board manufacturing is low due to the fact that the number of raw material processing processes is small, and therefore a radiation protection multilayer board is provided for solving the problem.
Disclosure of Invention
The invention aims to solve the problems that the success rate of manufacturing a multilayer board is low and the like due to less raw material processing processes in the existing multilayer board manufacturing technology, and provides a radiation protection multilayer board.
In order to achieve the purpose, the invention adopts the following technical scheme:
a radiation protection multilayer board comprises the following raw materials in parts by weight: 80-100 parts of willow, 30-60 parts of hot melt adhesive and 20-40 parts of nylon coated PVC thin cloth;
preferably, the feed comprises the following raw materials in parts by weight: 80-90 parts of willow, 30-55 parts of hot melt adhesive and 20-36 parts of nylon coated PVC thin cloth;
the preparation method comprises the following steps:
s1: raw material acquisition: selecting willow as a raw material by a professional, and sending workers to fell the willow in a mature period;
s2: carrying out pretreatment: after cutting, preprocessing the obtained Liuan trees;
s3: and (3) real-time observation: manually observing in real time in the rotary cutting process, and processing according to an observation result;
s4: deinsectization treatment: carrying out insect killing treatment on the prepared willow single board;
s5: preparing a product: selecting a willow single board as a board core, and spraying glue on the surface of the board core and sticking the glue on the front and back surfaces of the selected board core to manufacture a radiation protection multilayer board;
preferably, in S1, selecting the liuan tree as a raw material by a professional, calculating the mature period of the liuan tree according to the growth characteristics of the liuan tree by the professional, and sending a worker to fell the liuan tree in the mature period, wherein the tree with the diameter larger than 300mm needs to be selected as a felling object by the worker during felling, and the root of the selected liuan tree needs to be sawed off during felling;
preferably, in S2, after cutting down, the obtained liuan tree is pretreated, wherein when the pretreatment is performed, branches and leaves of the liuan tree are manually removed, and after the branches and leaves are removed, the liuan tree is manually inspected, the liuan tree is processed according to an inspection result, the inspection result shows that the branches and leaves of the liuan tree are not completely removed, the branches and leaves are manually removed twice, when the inspection result shows that the branches and leaves of the liuan tree are completely removed, the liuan tree is peeled, and after peeling is completed, the liuan tree is placed into a rotary cutter to be subjected to rotary cutting to prepare a veneer, wherein when the rotary cutting is performed, the setting range of the veneer thickness parameter of the rotary cutter is 1-3 mm;
preferably, in S3, in the rotary cutting process, the manual operation performs real-time observation, and the observation result is processed, the observation result is that the surface of the veneer formed after the rotary cutting is not damaged, the formed veneer is detected at intervals, the manual operation presses the rotary cutter stop button if the surface of the veneer formed after the rotary cutting is damaged, the damage rate of the veneer surface is calculated by the measuring meter, the manual operation reports the damage rate to the upper level, and the upper level needs to provide the calculated damage rate of the veneer surface when reporting, the upper level judges the obtained damage rate of the veneer surface, and processes the judgment result, wherein the judgment result is that the damage rate of the veneer surface is greater than or equal to 50% and the judgment result is that the rotary cutter is damaged, the judgment result is that the rotary cutter is not damaged if the damage rate of the veneer surface is less than 50%, and the upper level calls the maintenance personnel to check the internal parts of the rotary cutter if the rotary cutter is damaged, and processing the internal part inspection result, wherein the rotary cutter is returned to the factory for maintenance if the internal part inspection result is that the internal part is not damaged, the maintenance personnel replaces the damaged part if the internal part inspection result is that the internal part is damaged, the superior calling technician performs field debugging if the rotary cutter is judged to be not damaged, single plate trial production is required after each debugging, the trial production single plate surface damage rate data is processed, the trial production single plate surface damage rate is less than 50%, the debugging is continued until the trial production single plate surface damage rate is equal to 0%, the interval detection is that the manual single plate which is rotationally cut once is taken every 10min, the screw micrometer is adopted to measure the thickness of the selected single plate, the measurement result is processed, and the measurement result is that the thickness of the selected single plate is equal to the thickness parameter of the single plate set by the rotary cutter, the debugging is not processed If the measurement result is that the selected veneer thickness is not equal to the veneer thickness parameter set by the rotary cutter, manually pressing a rotary cutter stop button, calling a technician to carry out field debugging, carrying out veneer trial production after each debugging, measuring the thickness data of the veneer trial produced, comparing the measured data with the set data, and processing the data through the comparison result, wherein the comparison result is that the measured data is the same as the set data, carrying out veneer production, and if the measured data is different from the set data, pressing the rotary cutter stop button by the technician, and continuing debugging until the comparison result is that the measured data is the same as the set data, and stopping debugging;
preferably, in S4, the prepared willow single plate is subjected to insect killing treatment, wherein the prepared willow single plate is subjected to insect killing treatment by water boiling, water needs to be preheated manually before the water boiling, the preheating is stopped when the water temperature reaches 100 ℃, the heat is preserved for 5min, the willow single plate is added to soak for 3h, and the willow single plate is placed in a shade place to be subjected to ventilation drying after the soaking is finished, wherein the ventilation drying time is 45 h;
preferably, in S5, after the ventilation drying is completed, the number of the required wicker single plates is calculated according to the thickness of the required radiation protection multilayer plate, one of the wicker single plates is selected as a plate core, glue is sprayed on the surface of the plate core by a full-automatic spraying machine on the front and back surfaces of the selected plate core, wherein a hot melt adhesive is filled in the full-automatic spraying machine, the hot melt adhesive is formed by mixing ethylene, vinyl acetate and rosin in a volume ratio of 3:2:1, the wicker single plates are manually adhered on the surface of the plate core on which the hot melt adhesive is sprayed to form the multilayer plate, the multilayer plate is continuously sprayed on the surface of the wicker single plate without the hot melt adhesive after the wicker single plates are adhered, the adhering is stopped until the thickness of the required radiation protection multilayer plate after the multilayer plate is adhered, and simultaneously, a nylon-coated thin cloth is adhered on the two sides of the multilayer plate to form the radiation protection multilayer plate, and the prepared radiation protection multilayer board is extruded by an extruder, the extrusion strength of the extruder is 270MPa, the radiation protection multilayer board is inspected by manpower after the extrusion is finished, and the inspection result is used for processing, wherein the inspection result is that the hot melt adhesive does not seep out on the surface of the radiation protection multilayer board after the extrusion is finished, then the radiation protection multilayer board is placed in a 25 ℃ environment for drying, the hot melt adhesive seeped out on the surface of the radiation protection multilayer board after the extrusion is finished is erased by the manpower, and the radiation protection multilayer board is placed in a 25 ℃ environment for drying after the erasure, the drying time in the drying process is 36h, and the prepared radiation protection multilayer board is placed in a 20-25 ℃ environment for storage after the drying is finished.
Compared with the prior art, the invention has the beneficial effects that:
1. through carrying out the processing many times to raw and other materials, guarantee the quality of raw and other materials, improved the success rate of multiply wood preparation.
2. The real-time observation and processing are carried out in the manufacturing process of the multilayer board, so that the manufacturing process of the multilayer board is perfected, and the quality of the manufactured multilayer board is improved.
The invention aims to guarantee the quality of the raw materials and improve the success rate of the multilayer board manufacturing by processing the raw materials for multiple times, and meanwhile, the manufacturing process of the multilayer board is perfected and the quality of the manufactured multilayer board is improved by observing and processing the multilayer board in real time in the manufacturing process.
Drawings
Fig. 1 is a flow chart of a radiation protection multilayer board according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, 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 one
Referring to fig. 1, a radiation protection multilayer board comprises the following raw materials in parts by weight: 85 parts of willow, 46 parts of hot melt adhesive and 27 parts of nylon coated PVC thin cloth;
the preparation method comprises the following steps:
s1: raw material acquisition: selecting the willow as a raw material by a professional, calculating the mature period of the willow by the professional according to the growth characteristics of the willow, sending workers to fell the willow in the mature period, wherein the trees with the tree diameter larger than 300mm need to be selected as felling objects by the workers during felling, and the roots of the selected willow need to be sawed off during felling;
s2: carrying out pretreatment: putting the willow into a rotary cutter to carry out rotary cutting to prepare a single plate, wherein the set range of the thickness parameter of the single plate of the rotary cutter is 1-3mm when the rotary cutting is carried out;
s3: and (3) real-time observation: manually observing in real time during rotary cutting, processing by observation results, detecting the formed single plate at intervals when the surface of the formed single plate after rotary cutting is not damaged, manually pressing a rotary cutter stop button when the surface of the formed single plate after rotary cutting is damaged, calculating the damage rate of the surface of the single plate by a measuring meter, reporting to a higher level by manual work, providing the calculated damage rate of the surface of the single plate when reporting, judging by the higher level according to the obtained damage rate of the surface of the single plate, and processing by the judgment results, wherein the damage rate of the surface of the single plate is more than or equal to 50 percent, judging that the rotary cutter is damaged when the damage rate of the surface of the single plate is less than 50 percent, and calling a maintenance person by the higher level to check internal parts of the rotary cutter and process by the inspection results of the internal parts when the damage rate of the rotary cutter is judged to be less than 50 percent, wherein the rotary cutter is returned to the factory for maintenance if the internal part is not found to be damaged, the maintenance personnel replaces the damaged part if the internal part is found to be damaged, the superior calls technical personnel to debug on site if the rotary cutter is judged to be not damaged, single plate trial production is required after each debugging, the trial produced single plate surface damage rate data is processed, the trial produced single plate surface damage rate data is debugged if the trial produced single plate surface damage rate is less than 50 percent, the debugging is stopped until the trial produced single plate surface damage rate is equal to 0 percent, wherein the interval detection is that the single plate which is rotationally cut once is manually taken every 10min, the thickness measurement is carried out on the selected single plate by adopting a screw micrometer, the measurement result is processed, and the measurement result is that the selected single plate thickness is equal to the single plate thickness parameter set by the rotary cutter and is not processed, if the measurement result is that the selected veneer thickness is not equal to the veneer thickness parameter set by the rotary cutter, manually pressing a rotary cutter stop button, calling a technician to carry out field debugging, carrying out veneer trial production after each debugging, measuring the thickness data of the veneer trial produced, comparing the measured data with the set data, and processing the data through the comparison result, wherein the comparison result is that the measured data is the same as the set data, carrying out veneer production, and the comparison result is that the measured data is different from the set data, the technician presses the rotary cutter stop button and continues debugging until the comparison result is that the measured data is the same as the set data;
s4: deinsectization treatment: carrying out deinsectization treatment on the prepared willow veneer, wherein the prepared willow veneer is subjected to deinsectization treatment by water boiling, water is manually preheated before the water boiling, the preheating is stopped when the water temperature reaches 100 ℃, the temperature is kept for 5min, then the willow veneer is added and soaked for 3h, and after the soaking is finished, the willow veneer is placed in a shade place for ventilation drying, wherein the ventilation drying time is 45 h;
s5: preparing a product: calculating the number of the needed willow veneers through the thickness of the needed radiation protection multilayer board after ventilation drying is finished, selecting one willow veneer as a board core, spraying glue on the surface of the board core by adopting a full-automatic spraying machine on the front surface and the back surface of the selected board core, wherein hot melt glue is filled in the full-automatic spraying machine and is formed by mixing ethylene, vinyl acetate and rosin according to the volume ratio of 3:2:1, manually pasting the willow veneer on the surface of the board core sprayed with the hot melt glue to form the multilayer board after spraying, continuously spraying the hot melt glue on the surface of the willow veneer without the hot melt glue after pasting the willow veneer, stopping pasting until the thickness of the multilayer board formed after pasting is equal to the thickness of the needed radiation protection multilayer board, pasting nylon-coated PVC thin cloth on two sides of the formed multilayer board to form the radiation protection multilayer board, and extruding the prepared radiation protection multilayer board by adopting an extruding machine, and the extruder carries out extrusion formula extrusion intensity and is 270MPa, is examined the radiation protection multiply wood by the manual work after the extrusion is accomplished to handle through the inspection result, wherein the inspection result is that the hot melt adhesive is not oozed on the surface of the radiation protection multiply wood after the extrusion is accomplished then place the radiation protection multiply wood and carry out the drying in the 25 ℃ environment, the inspection result is that the hot melt adhesive is oozed on the surface of the radiation protection multiply wood after the extrusion is accomplished then will be erased by the manual work with the hot melt adhesive that oozes, and wipe the back and place the radiation protection multiply wood and carry out the drying in the 25 ℃ environment, drying process drying time is 36h, and the radiation protection multiply wood that will make after the drying is accomplished is placed and is stored in the 23 ℃ environment.
Example two
Referring to fig. 1, a radiation protection multilayer board comprises the following raw materials in parts by weight: 80 parts of willow, 30 parts of hot melt adhesive and 20 parts of nylon coated PVC thin cloth;
the preparation method comprises the following steps:
s1: raw material acquisition: selecting the willow as a raw material by a professional, calculating the mature period of the willow by the professional according to the growth characteristics of the willow, sending workers to fell the willow in the mature period, wherein the trees with the tree diameter larger than 300mm need to be selected as felling objects by the workers during felling, and the roots of the selected willow need to be sawed off during felling;
s2: carrying out pretreatment: after cutting, preprocessing the obtained Liuan trees, wherein branches and leaves of the Liuan trees are removed manually during preprocessing, the Liuan trees are inspected manually after the branches and leaves are removed, the Liuan trees are processed according to inspection results, secondary branch and leaf removal is performed manually after the inspection results show that the branches and leaves of the Liuan trees are not completely removed, the Liuan trees are peeled after the inspection results show that the branches and leaves of the Liuan trees are completely removed, the Liuan trees are put into a rotary cutter to be subjected to rotary cutting to be manufactured into single plates after peeling, and the setting range of the thickness parameters of the single plates of the rotary cutter is 1-3mm when the rotary cutting is performed;
s3: and (3) real-time observation: manually observing in real time during rotary cutting, processing by observation results, detecting the formed single plate at intervals when the surface of the formed single plate after rotary cutting is not damaged, manually pressing a rotary cutter stop button when the surface of the formed single plate after rotary cutting is damaged, calculating the damage rate of the surface of the single plate by a measuring meter, reporting to a higher level by manual work, providing the calculated damage rate of the surface of the single plate when reporting, judging by the higher level according to the obtained damage rate of the surface of the single plate, and processing by the judgment results, wherein the damage rate of the surface of the single plate is more than or equal to 50 percent, judging that the rotary cutter is damaged when the damage rate of the surface of the single plate is less than 50 percent, and calling a maintenance person by the higher level to check internal parts of the rotary cutter and process by the inspection results of the internal parts when the damage rate of the rotary cutter is judged to be less than 50 percent, the rotary cutter is returned to the factory for maintenance if the internal part is not found to be damaged, the damaged part is replaced by a maintainer if the internal part is found to be damaged, field debugging is carried out by a superior calling technician if the rotary cutter is judged to be not damaged, single plate trial production is carried out after each debugging, the trial produced single plate surface damage rate data is processed, and debugging is continued if the trial produced single plate surface damage rate is less than 50% until the trial produced single plate surface damage rate is equal to 0% and the debugging is stopped;
s4: deinsectization treatment: carrying out deinsectization treatment on the prepared willow veneer, wherein the prepared willow veneer is subjected to deinsectization treatment by water boiling, water is manually preheated before the water boiling, the preheating is stopped when the water temperature reaches 100 ℃, the temperature is kept for 5min, then the willow veneer is added and soaked for 3h, and after the soaking is finished, the willow veneer is placed in a shade place for ventilation drying, wherein the ventilation drying time is 45 h;
s5: preparing a product: calculating the number of the needed willow veneers through the thickness of the needed radiation protection multilayer board after ventilation drying is finished, selecting one willow veneer as a board core, spraying glue on the surface of the board core by adopting a full-automatic spraying machine on the front surface and the back surface of the selected board core, wherein hot melt glue is filled in the full-automatic spraying machine and is formed by mixing ethylene, vinyl acetate and rosin according to the volume ratio of 3:2:1, manually pasting the willow veneer on the surface of the board core sprayed with the hot melt glue to form the multilayer board after spraying, continuously spraying the hot melt glue on the surface of the willow veneer without the hot melt glue after pasting the willow veneer, stopping pasting until the thickness of the multilayer board formed after pasting is equal to the thickness of the needed radiation protection multilayer board, pasting nylon-coated PVC thin cloth on two sides of the formed multilayer board to form the radiation protection multilayer board, and extruding the prepared radiation protection multilayer board by adopting an extruding machine, and the extruder carries out extrusion formula extrusion intensity and is 270MPa, is examined the radiation protection multiply wood by the manual work after the extrusion is accomplished to handle through the inspection result, wherein the inspection result is that the hot melt adhesive is not oozed on the surface of the radiation protection multiply wood after the extrusion is accomplished then place the radiation protection multiply wood and carry out the drying in the 25 ℃ environment, the inspection result is that the hot melt adhesive is oozed on the surface of the radiation protection multiply wood after the extrusion is accomplished then will be erased by the manual work with the hot melt adhesive that oozes, and wipe the back and place the radiation protection multiply wood and carry out the drying in the 25 ℃ environment, drying process drying time is 36h, and the radiation protection multiply wood that will make after the drying is accomplished is placed and is stored in the 20 ℃ environment.
EXAMPLE III
Referring to fig. 1, a radiation protection multilayer board comprises the following raw materials in parts by weight: 90 parts of willow, 55 parts of hot melt adhesive and 36 parts of nylon coated PVC thin cloth;
the preparation method comprises the following steps:
s1: raw material acquisition: selecting the willow as a raw material by a professional, calculating the mature period of the willow by the professional according to the growth characteristics of the willow, sending workers to fell the willow in the mature period, wherein the trees with the tree diameter larger than 300mm need to be selected as felling objects by the workers during felling, and the roots of the selected willow need to be sawed off during felling;
s2: carrying out pretreatment: after cutting, preprocessing the obtained Liuan tree, wherein branches and leaves of the Liuan tree are manually removed during preprocessing, the Liuan tree is manually inspected after the branches and leaves are removed, the Liuan tree is processed according to an inspection result, secondary branch and leaf removal is manually performed if the branches and leaves of the Liuan tree are not completely removed, the Liuan tree is peeled if the branches and leaves of the Liuan tree are completely removed according to the inspection result, the Liuan tree is put into a rotary cutter to be subjected to rotary cutting to be manufactured into a single plate after peeling, and the setting range of the thickness parameter of the single plate of the rotary cutter is 1-3mm during rotary cutting;
s3: and (3) real-time observation: manually observing in real time during rotary cutting, processing by observation results, detecting the formed single plate at intervals when the surface of the formed single plate after rotary cutting is not damaged, manually pressing a rotary cutter stop button when the surface of the formed single plate after rotary cutting is damaged, calculating the damage rate of the surface of the single plate by a measuring meter, reporting to a higher level by manual work, providing the calculated damage rate of the surface of the single plate when reporting, judging by the higher level according to the obtained damage rate of the surface of the single plate, and processing by the judgment results, wherein the damage rate of the surface of the single plate is more than or equal to 50 percent, judging that the rotary cutter is damaged when the damage rate of the surface of the single plate is less than 50 percent, and calling a maintenance person by the higher level to check internal parts of the rotary cutter and process by the inspection results of the internal parts when the damage rate of the rotary cutter is judged to be less than 50 percent, wherein the rotary cutter is returned to the factory for maintenance if the internal part is not found to be damaged, the maintenance personnel replaces the damaged part if the internal part is found to be damaged, the superior calls technical personnel to debug on site if the rotary cutter is judged to be not damaged, single plate trial production is required after each debugging, the trial produced single plate surface damage rate data is processed, the trial produced single plate surface damage rate data is debugged if the trial produced single plate surface damage rate is less than 50 percent, the debugging is stopped until the trial produced single plate surface damage rate is equal to 0 percent, wherein the interval detection is that the single plate which is rotationally cut once is manually taken every 10min, the thickness measurement is carried out on the selected single plate by adopting a screw micrometer, the measurement result is processed, and the measurement result is that the selected single plate thickness is equal to the single plate thickness parameter set by the rotary cutter and is not processed, if the measurement result is that the selected veneer thickness is not equal to the veneer thickness parameter set by the rotary cutter, manually pressing a rotary cutter stop button, calling a technician to carry out field debugging, carrying out veneer trial production once after each debugging, measuring the thickness data of the single veneer produced in the trial production, comparing the measured data with the set data, and processing the data according to the comparison result, wherein if the measured data is the same as the set data, the veneer production is carried out according to the comparison result, and if the measured data is different from the set data, the technician presses the rotary cutter stop button, and continues debugging until the measured data is the same as the set data according to the comparison result;
s4: preparing a product: calculating the number of the needed willow veneers through the thickness of the needed radiation protection multilayer board after ventilation drying is finished, selecting one willow veneer as a board core, spraying glue on the surface of the board core by adopting a full-automatic spraying machine on the front surface and the back surface of the selected board core, wherein hot melt glue is filled in the full-automatic spraying machine and is formed by mixing ethylene, vinyl acetate and rosin according to the volume ratio of 3:2:1, manually pasting the willow veneer on the surface of the board core sprayed with the hot melt glue to form the multilayer board after spraying, continuously spraying the hot melt glue on the surface of the willow veneer without the hot melt glue after pasting the willow veneer, stopping pasting until the thickness of the multilayer board formed after pasting is equal to the thickness of the needed radiation protection multilayer board, pasting nylon-coated PVC thin cloth on two sides of the formed multilayer board to form the radiation protection multilayer board, and extruding the prepared radiation protection multilayer board by adopting an extruding machine, and the extruder carries out extrusion formula extrusion intensity and is 270MPa, is examined the radiation protection multiply wood by the manual work after the extrusion is accomplished to handle through the inspection result, wherein the inspection result is that the hot melt adhesive is not oozed on the surface of the radiation protection multiply wood after the extrusion is accomplished then place the radiation protection multiply wood and carry out the drying in the 25 ℃ environment, the inspection result is that the hot melt adhesive is oozed on the surface of the radiation protection multiply wood after the extrusion is accomplished then will be erased by the manual work with the hot melt adhesive that oozes, and wipe the back and place the radiation protection multiply wood and carry out the drying in the 25 ℃ environment, drying process drying time is 36h, and the radiation protection multiply wood that will make after the drying is accomplished is placed and is stored in the 24 ℃ environment.
Example four
Referring to fig. 1, a radiation protection multilayer board comprises the following raw materials in parts by weight: 83 parts of willow, 51 parts of hot melt adhesive and 30 parts of nylon coated PVC thin cloth;
the preparation method comprises the following steps:
s1: raw material acquisition: selecting the willow as a raw material by a professional, calculating the mature period of the willow by the professional according to the growth characteristics of the willow, sending workers to fell the willow in the mature period, wherein the trees with the tree diameter larger than 300mm need to be selected as felling objects by the workers during felling, and the roots of the selected willow need to be sawed off during felling;
s2: carrying out pretreatment: after cutting, preprocessing the obtained Liuan trees, wherein branches and leaves of the Liuan trees are removed manually during preprocessing, the Liuan trees are inspected manually after the branches and leaves are removed, the Liuan trees are processed according to inspection results, secondary branch and leaf removal is performed manually after the inspection results show that the branches and leaves of the Liuan trees are not completely removed, the Liuan trees are peeled after the inspection results show that the branches and leaves of the Liuan trees are completely removed, the Liuan trees are put into a rotary cutter to be subjected to rotary cutting to be manufactured into single plates after peeling, and the setting range of the thickness parameters of the single plates of the rotary cutter is 1-3mm when the rotary cutting is performed;
s3: and (3) real-time observation: manually observing in real time during rotary cutting, processing by observation results, detecting the formed single plate at intervals when the surface of the formed single plate after rotary cutting is not damaged, manually pressing a rotary cutter stop button when the surface of the formed single plate after rotary cutting is damaged, calculating the damage rate of the surface of the single plate by a measuring meter, reporting to a higher level by manual work, providing the calculated damage rate of the surface of the single plate when reporting, judging by the higher level according to the obtained damage rate of the surface of the single plate, and processing by the judgment results, wherein the damage rate of the surface of the single plate is more than or equal to 50 percent, judging that the rotary cutter is damaged when the damage rate of the surface of the single plate is less than 50 percent, and calling a maintenance person by the higher level to check internal parts of the rotary cutter and process by the inspection results of the internal parts when the damage rate of the rotary cutter is judged to be less than 50 percent, wherein the rotary cutter is returned to the factory for maintenance if the internal part is not found to be damaged, the maintenance personnel replaces the damaged part if the internal part is found to be damaged, the superior calls technical personnel to debug on site if the rotary cutter is judged to be not damaged, single plate trial production is required after each debugging, the trial produced single plate surface damage rate data is processed, the trial produced single plate surface damage rate data is debugged if the trial produced single plate surface damage rate is less than 50 percent, the debugging is stopped until the trial produced single plate surface damage rate is equal to 0 percent, wherein the interval detection is that the single plate which is rotationally cut once is manually taken every 10min, the thickness measurement is carried out on the selected single plate by adopting a screw micrometer, the measurement result is processed, and the measurement result is that the selected single plate thickness is equal to the single plate thickness parameter set by the rotary cutter and is not processed, if the measurement result is that the selected veneer thickness is not equal to the veneer thickness parameter set by the rotary cutter, manually pressing a rotary cutter stop button, calling a technician to carry out field debugging, carrying out veneer trial production after each debugging, measuring the thickness data of the veneer trial produced, comparing the measured data with the set data, and processing the data through the comparison result, wherein the comparison result is that the measured data is the same as the set data, carrying out veneer production, and the comparison result is that the measured data is different from the set data, the technician presses the rotary cutter stop button and continues debugging until the comparison result is that the measured data is the same as the set data;
s4: deinsectization treatment: carrying out deinsectization treatment on the prepared willow single plate, wherein the prepared willow single plate is subjected to deinsectization treatment by water boiling, water is manually preheated before the water boiling, the preheating is stopped when the water temperature reaches 100 ℃, the temperature is kept for 5min, then the willow single plate is added to be soaked for 3h, and after the soaking is finished, the willow single plate is placed in a shade place to be subjected to ventilation drying, wherein the ventilation drying time is 45 h;
s5: preparing a product: calculating the number of the needed willow veneers through the thickness of the needed radiation protection multilayer board after ventilation drying is finished, selecting one willow veneer as a board core, spraying glue on the surface of the board core by adopting a full-automatic spraying machine on the front surface and the back surface of the selected board core, wherein hot melt glue is filled in the full-automatic spraying machine and is formed by mixing ethylene, vinyl acetate and rosin according to the volume ratio of 3:2:1, manually pasting the willow veneer on the surface of the board core sprayed with the hot melt glue to form the multilayer board after spraying, continuously spraying the hot melt glue on the surface of the willow veneer without the hot melt glue after pasting the willow veneer, stopping pasting until the thickness of the multilayer board formed after pasting is equal to the thickness of the needed radiation protection multilayer board, pasting nylon-coated PVC thin cloth on two sides of the formed multilayer board to form the radiation protection multilayer board, and extruding the prepared radiation protection multilayer board by adopting an extruding machine, and the extrusion strength of the extruder is 270 MPa.
EXAMPLE five
Referring to fig. 1, a radiation protection multilayer board comprises the following raw materials in parts by weight: 88 parts of willow, 36 parts of hot melt adhesive and 33 parts of nylon coated PVC thin cloth;
the preparation method comprises the following steps:
s1: raw material acquisition: selecting the willow as a raw material by a professional, calculating the mature period of the willow by the professional according to the growth characteristics of the willow, sending workers to fell the willow in the mature period, wherein the trees with the tree diameter larger than 300mm need to be selected as felling objects by the workers during felling, and the roots of the selected willow need to be sawed off during felling;
s2: carrying out pretreatment: after cutting, preprocessing the obtained Liuan trees, wherein branches and leaves of the Liuan trees are removed manually during preprocessing, the Liuan trees are inspected manually after the branches and leaves are removed, the Liuan trees are processed according to inspection results, secondary branch and leaf removal is performed manually after the inspection results show that the branches and leaves of the Liuan trees are not completely removed, the Liuan trees are peeled after the inspection results show that the branches and leaves of the Liuan trees are completely removed, the Liuan trees are put into a rotary cutter to be subjected to rotary cutting to be manufactured into single plates after peeling, and the setting range of the thickness parameters of the single plates of the rotary cutter is 1-3mm when the rotary cutting is performed;
s3: deinsectization treatment: carrying out deinsectization treatment on the prepared willow veneer, wherein the prepared willow veneer is subjected to deinsectization treatment by water boiling, water is manually preheated before the water boiling, the preheating is stopped when the water temperature reaches 100 ℃, the temperature is kept for 5min, then the willow veneer is added and soaked for 3h, and after the soaking is finished, the willow veneer is placed in a shade place for ventilation drying, wherein the ventilation drying time is 45 h;
s4: preparing a product: calculating the number of the needed willow veneers through the thickness of the needed radiation protection multilayer board after ventilation drying is finished, selecting one willow veneer as a board core, spraying glue on the surface of the board core by adopting a full-automatic spraying machine on the front surface and the back surface of the selected board core, wherein hot melt glue is filled in the full-automatic spraying machine and is formed by mixing ethylene, vinyl acetate and rosin according to the volume ratio of 3:2:1, manually pasting the willow veneer on the surface of the board core sprayed with the hot melt glue to form the multilayer board after spraying, continuously spraying the hot melt glue on the surface of the willow veneer without the hot melt glue after pasting the willow veneer, stopping pasting until the thickness of the multilayer board formed after pasting is equal to the thickness of the needed radiation protection multilayer board, pasting nylon-coated PVC thin cloth on two sides of the formed multilayer board to form the radiation protection multilayer board, and extruding the prepared radiation protection multilayer board by adopting an extruding machine, and the extruder carries out extrusion formula extrusion intensity and is 270MPa, is examined the radiation protection multiply wood by the manual work after the extrusion is accomplished to handle through the inspection result, wherein the inspection result is that the hot melt adhesive is not oozed on the surface of the radiation protection multiply wood after the extrusion is accomplished then place the radiation protection multiply wood and carry out the drying in the 25 ℃ environment, the inspection result is that the hot melt adhesive is oozed on the surface of the radiation protection multiply wood after the extrusion is accomplished then will be erased by the manual work with the hot melt adhesive that oozes, and wipe the back and place the radiation protection multiply wood and carry out the drying in the 25 ℃ environment, drying process drying time is 36h, and the radiation protection multiply wood that will make after the drying is accomplished is placed and is stored in the 22 ℃ environment.
The radiation-protective multilayer boards of the first, second, third, fourth and fifth examples were tested to obtain the following results:
Figure BDA0003526633530000171
Figure BDA0003526633530000181
the success rate of the radiation protection multilayer boards prepared in the first embodiment, the second embodiment, the third embodiment, the fourth embodiment and the fifth embodiment is obviously improved compared with that of the existing radiation protection multilayer boards, and the third embodiment is the best embodiment.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (9)

1. The radiation protection multilayer board is characterized by comprising the following raw materials in parts by weight: 80-100 parts of willow, 30-60 parts of hot melt adhesive and 20-40 parts of nylon coated PVC thin cloth.
2. The radiation protection multilayer plate according to claim 1, comprising the following raw materials in parts by weight: 80-90 parts of willow, 30-55 parts of hot melt adhesive and 20-36 parts of nylon coated PVC thin cloth.
3. The radiation-protective multilayer sheet according to claim 1, characterized in that its preparation process comprises the following steps:
s1: raw material acquisition: selecting willow as a raw material by a professional, and sending workers to fell the willow in a mature period;
s2: carrying out pretreatment: after cutting, preprocessing the obtained Liuan trees;
s3: and (3) real-time observation: manually observing in real time in the rotary cutting process, and processing according to an observation result;
s4: deinsectization treatment: carrying out deinsectization treatment on the prepared willow single plate;
s5: preparing a product: selecting a willow single board as a board core, and spraying glue on the surface of the board core and sticking the glue on the front and back surfaces of the selected board core to manufacture the radiation protection multilayer board.
4. The multilayer radiation-shielding plate as claimed in claim 3, wherein in S1, the willow is selected by professionals as raw material, the professional calculates the mature period of the willow according to the growth characteristics of the willow, and workers are dispatched to fell the willow during the mature period, wherein the workers need to select trees with a diameter larger than 300mm as felling objects and saw off the roots of the selected willow during felling.
5. The radiation-shielding multilayer board as claimed in claim 3, wherein in step S2, the obtained Liuan trees are pretreated after felling, wherein the branches and leaves of the Liuan trees are manually removed, the Liuan trees are manually inspected after the branches and leaves are removed, the Liuan trees are treated according to the inspection result, the secondary branches and leaves are manually removed if the branches and leaves of the Liuan trees are not completely removed, the Liuan trees are peeled if the branches and leaves of the Liuan trees are completely removed, the Liuan trees are put into a rotary cutter to be rotatably cut into veneers after the peeling is completed, and the thickness parameter of the veneers of the rotary cutter is set within a range of 1-3mm when the rotary cutter is rotatably cut.
6. The radiation-shielding multilayer board according to claim 3, wherein in S3, the real-time observation is performed by human beings during the rotary cutting process, and the observation result is processed, the observation result is that the surface of the formed veneer after the rotary cutting is not damaged, the formed veneer is detected at intervals, the observation result is that the surface of the formed veneer after the rotary cutting is damaged, the rotary cutter stop button is pressed by human beings, the damage rate of the veneer surface is calculated by measuring, and the human beings report to the upper stage, and the calculated damage rate of the veneer surface is provided when reporting, the upper stage judges through the obtained damage rate of the veneer surface, and processes through the judgment result, wherein the rotary cutter is judged to be damaged if the damage rate of the veneer surface is greater than or equal to 50%, the rotary cutter is judged not to be damaged if the damage rate of the veneer surface is less than 50%, and the rotary cutter is judged to be damaged, the internal part inspection is performed by the upper stage calling maintenance personnel, and processing the internal part inspection result, wherein if the internal part inspection result shows that the internal part is not damaged, the rotary cutter is returned to the factory for maintenance, if the internal part inspection result shows that the internal part is damaged, the damaged part is replaced by a maintainer, if the rotary cutter is judged not to be damaged, the upper-level calling technician carries out field debugging, single plate trial production is carried out after each debugging, and the debugging is carried out through the trial-produced single plate surface damage rate data, wherein if the trial-produced single plate surface damage rate is less than 50%, the debugging is continued until the trial-produced single plate surface damage rate is equal to 0%.
7. The radiation protection multilayer board of claim 6, wherein the interval detection is to manually take a veneer obtained by rotary cutting every 10min, and to measure the thickness of the selected veneer by a micrometer screw, and to process the measurement result, wherein the measurement result is not processed if the thickness of the selected veneer is equal to the thickness parameter set by the rotary cutter, and the measurement result is not equal to the thickness parameter set by the rotary cutter, and to manually press a rotary cutter stop button, and to call a technician to perform on-site debugging, and after each debugging, a veneer trial production is required, and to measure the thickness data of the veneer produced in trial, and the measured data is compared with the set data, and to process the comparison result, wherein the measured data is the same as the set data, and if the measured data is different from the set data according to the comparison result, pressing a rotary cutter stop button by a technician, and continuing debugging until the measured data is the same as the set data according to the comparison result.
8. The multilayer board of claim 3, wherein in step S4, the prepared willow veneer is deinsectized, wherein the deinsectization is performed by boiling, and water is manually preheated before boiling, wherein the preheating is stopped when the water temperature reaches 100 ℃, the temperature is kept for 5min, then the willow veneer is added to be soaked for 3h, and after soaking, the willow veneer is placed in a shade for ventilation drying, wherein the ventilation drying time is 45 h.
9. The radiation-protective multilayer plate as claimed in claim 3, wherein in S5, after the ventilation drying is completed, the number of the required willow veneers is calculated according to the thickness of the required radiation-protective multilayer plate, one willow veneer is selected as a plate core, glue is sprayed on the surface of the plate core by a full-automatic spraying machine on the front and back surfaces of the selected plate core, wherein the full-automatic spraying machine is filled with a hot melt glue, the hot melt glue is formed by mixing ethylene, vinyl acetate and rosin in a volume ratio of 3:2:1, after the spraying, the willow veneers sprayed with the hot melt glue are manually pasted on the surface of the plate core to form the multilayer plate, after the willow veneers are pasted, the hot melt glue is continuously sprayed on the surface of the willow veneers without the hot melt glue, the pasting is stopped until the thickness of the multilayer plate formed after the pasting is equal to the thickness of the required radiation-protective multilayer plate, and at the same time, a nylon thin cloth is pasted on the two sides of the formed multilayer plate to form the radiation-protective multilayer plate, and the prepared radiation protection multilayer board is extruded by an extruder, the extrusion strength of the extruder is 270MPa, the radiation protection multilayer board is inspected by manpower after the extrusion is finished, and the inspection result is used for processing, wherein the inspection result is that the hot melt adhesive does not seep out on the surface of the radiation protection multilayer board after the extrusion is finished, then the radiation protection multilayer board is placed in a 25 ℃ environment for drying, the hot melt adhesive seeped out on the surface of the radiation protection multilayer board after the extrusion is finished is erased by the manpower, and the radiation protection multilayer board is placed in a 25 ℃ environment for drying after the erasure, the drying time in the drying process is 36h, and the prepared radiation protection multilayer board is placed in a 20-25 ℃ environment for storage after the drying is finished.
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