92results about How to "Not easy to split" patented technology

The invention discloses a vehicle obstacle avoidance laser radar waveform extraction method, a laser radar and a medium. The method comprises the following steps of receiving an optical signal at a focal plane through a photodetector, and performing photoelectric conversion to obtain a laser radar electrical analog signal; converting the analog signal into an echo digital waveform by a high speedAD and a modulation circuit; storing the digital waveform online, and acquiring an echo interval of the effective waveform online by sliding window filtering; and integrating the effective waveform toobtain a target center-of-mass position. The invention relates to a vehicle obstacle avoidance laser radar waveform extraction method which can analyze the information of all the sampling points on afull waveform data channel by acquiring all laser echo signals on a laser transmission channel during single collection based on a laser echo full waveform collection technology system to obtain multi-pulse multi-center-of-mass positions, thus achieving centimeter-level ranging accuracy.

The invention discloses a making method of a moving sliding plate. The making method is characterized by comprising the steps of: 1) foaming; 2) cooling a foaming die with water, taking out a foaming board, naturally cooling the foaming board to room temperature and drying; 3) wrapping a piece of glass fiber cloth and spraying or coating epoxy resin; 4) curing and polishing; 5) wrapping the glass fiber cloth again, and then spraying or coating the epoxy resin; 6) paving plastic sheets printed with a pattern, so that corresponding peripheries of the upper and lower plastic sheets are directly connected together; 7) pressing and forming; and 8) trimming and polishing. The method provided by the invention has the following advantages that: in the making method, the corresponding peripheries of the upper and lower plastic sheets of the moving sliding plate are directly bonded together, so that the upper and lower plastic sheets form a whole body; and furthermore, the inner cores are wrapped together, so that the structure of the moving sliding plate is firmer, the service life is longer, and the peripheries are smoother, therefore, resistance of water to the moving sliding plate during sliding of the moving sliding plate is reduced, and the moving sliding plate is easier to control.

The invention relates to the jujube tree grafting technique, in particular to a jujube tree trunk beheading and top grafting method which aims to solve the problem that the multi-head top grafting method is not applicable to trees with trunk height higher than 150cm and upright but not opening skeleton branch shapes. The jujube tree trunk beheading and top grafting method includes beheading a trunk, burying and inserting a scion into the position below the trunk skin, which is called trunk beheading and top grafting; thoroughly cutting secondary lateral branches from the scion and cutting the section above the bud into a slope facing the back side of the bud; beheading the jujube tree at the position of 120-150cm above the trunk, cutting 3-6 T-shaped grafting openings evenly distributed around the trunk on the bast layer through a grafting knife, and cutting a semi-circular notch on the bast layer on the upper portion of each T-shaped grafting opening, wherein the diameter of each semi-circular notch is the upper cross line of the T-shaped grafting opening. The jujube tree trunk beheading and top grafting method is especially applicable to threes with trunk height higher than 150cm and upright and not opening skeleton branch shapes.

The invention relates to a heavy bamboo composite flooring production technology comprising the following steps: heavy bamboo processing; normal bamboo processing; pressing to form an entire plate; cutting heads; straightening edges; heavy sanding; forming; fine sanding; painting process. The bamboo floor production technology in the prior art is poor in reasonability and scientific property, so the produced bamboo floor is poor in quality; the heavy bamboo composite flooring production technology can solve the said problems, is simple in technology, easy to realize, and can be widely applied to the bamboo floor production field.

The invention provides a dissipative soliton resonance fiber laser. The dissipative soliton resonance fiber laser comprises a laser emitting assembly, a wavelength division multiplexer, a gain fiber,a coupler, a polarization independent isolator and an all-fiber saturable absorption assembly which are welded in sequence; the all-fiber saturable absorption assembly is welded with the wavelength division multiplexer; the wavelength division multiplexer, the gain fiber, the coupler, the polarization independent isolator and the all-fiber saturable absorption assembly are connected in sequence toform a fiber ring cavity structure; the all-fiber saturable absorption assembly comprises a polarization controller and a fiber group; the fiber group comprises a single-mode fiber, a single-claddingmultimode fiber and an output single-mode fiber which are connected in sequence; and the single-mode fiber, the single-cladding multimode fiber and the output single-mode fiber which are connected insequence are mechanically clamped by the polarization controller. According to the invention, the soliton can be stably operated under the condition of large energy, no splitting is generated, and apowerful support is provided for the large energy output of the fiber laser.

The invention relates to impact-resistant basalt fiber reinforced concrete and a preparation method thereof. The impact-resistant basalt fiber reinforced concrete comprises the following components inparts by weight: 400-800 parts of cement, 80-170 parts of a mineral admixture; 500-1200 parts of fine aggregate; 90-1800 parts of coarse aggregate; 2-4 parts of basalt fiber; and 200-400 parts of water. According to the impact-resistant basalt fiber reinforced concrete, the basalt fiber has excellent impact resistance, and the impact failure load is higher than that of common concrete. The relative dynamic elastic modulus and the mass loss rate are obviously controlled under the condition of multiple freezing and thawing, the anti-freezing performance is outstanding, and the concrete has important significance in the fields of port deep wharfs, cross-sea bridges and the like.

The invention discloses an acetaminophen, caffeine, chlorphenamine maleate, vitamin C preparation and a preparation method thereof, wherein the preparation is double-layer tablets which are respectively an acetaminophen granular layer embedded by beta-cyclodextrin, and a caffeine, chlorphenamine maleate and vitamin C granular layer, which are moulded by a tablet press. The preparation uses the beta-cyclodextrin to embed the acetaminophen so as to remarkably improve the stability and dissolution rate of the acetaminophen and reduce the stimulation and toxic side effects of medicaments; the beta-cyclodextrin can further reduce the offensive odour of the medicaments; moreover, the invention adopts the synergistic effect of the acetaminophen and the vitamin C so as to shorten the treatment course for curing the cold and make the cold be not easy to relapse; and the double-layer tablet structure achieves the purposes of isolating the acetaminophen and the caffeine, the chlorphenamine maleate and the vitamin C and solves the problems of metamorphic degradation, poor stability, short period of efficacy and the like caused by the interaction of the medicaments. The preparation is not easy to split, and is excellent in quality. The method is used for preparing the acetaminophen caffeine chlorphenamine maleate vitamin C double-layer tablet, and the preparation is mainly used for treating disease such as cold.

The invention relates to a method of producing flat fibers for plastic woven bags and flexible freight containers by using waste PET (polyethylene terephthalate) bottles. The method is characterized by comprising the following steps of: mixing the waste PET bottles which are dried or crystalized in advance with a compatibilizer, an antioxidant, a tackifier, a filling agent, a color masterbatch, a lanthanide series metallic compound and additives, then adding the mixture to an extruder, carrying out extrusion, filtering and measurement in sequence, carrying out tape casting by using a die head, and cooling on a cooling roller to obtain films. The relative pulling strength (N / tex) of the flat fibers is greater than or equal to 0.58; the elongation rate (%) of the flat fibers is 16.5-21.4; the oxygen index of the flat fibers is above 26; the linear density (tex) of the flat fibers reaches 71.6-153.7; the tensile strength retention rate of the flat fibers is 93.3%-93.8% when the flat fibers are placed for 144 hours; the strength retention rate of the flat fibers is 97.1%-97.5% when the flat fibers are placed for 144 hours at the temperature of minus 35 DEG C; when being placed for 2 hours at the temperature of 140 DEG C, the shrinkage rate of the 10 cm flat fiber is 0; and the ink layer combination firmness of the flat fibers is 92%-99%.

The invention discloses a hair nourishing conditioner, which is prepared from the following raw materials in parts by weight: 3-5 parts of apple cider vinegar, 5-10 parts of jojoba oil, 5-10 parts of aloe gel, and 10-15 parts of coconut oil , olive oil 10‑20 parts, black sesame oil 10‑15 parts, Polygonum multiflorum 5‑10 parts, safflower oil 10‑15 parts, garlic 3‑5 parts, rice wine 1‑2 parts, mung beans 3‑7 parts, soybeans 3‑ 7 parts, ginger 3‑7 parts, rice water 20‑50 parts, rose 10‑15 parts. The hair nourishing conditioner of the present invention adds pure natural ingredients, can moisturize the scalp, improve hair quality, remove dandruff and relieve itching, and make the hair soft and smooth.

The invention discloses a bacteriostasis-type synthetic leather uses for a swivel chair. The bacteriostasis-type synthetic leather comprises a base layer and a surface layer; the surface layer is applied at two sides of the base layer; the surface layer comprises the following components in parts by weight: 100 parts of PVC resin, 50-60 parts of a plasticizer, 20-30 parts of aramid fiber, 20-30 parts of silk fiber, 5-10 parts of ramie fiber, 10-20 parts of cotton fiber, and 5-10 parts of a foaming agent; and the base layer comprises the following components in parts by weight: 100 parts of PVC resin, 30-40 parts of calcium carbonate, 5-10 parts of a stabilizing agent, and 5-10 parts of polytetrafluoroethylene. The preparation method comprises the following steps: 1) preparation of the base layer; 2) preparation of the surface layer; and 3) hot-press composition. The bacteriostasis-type synthetic leather has the advantages of strong creativity and distinct characteristic, comprehensively increases permeability and wear resistance, and the base layer and the surface layer are difficulty corroded and split under high temperature wet environment.

The invention relates to the technical field of external wall repair, in particular to an insulation external wall repair technology. According to the insulation external wall repair technology, whena small amount of superficial shallow cracks appear in a finish coat, a reinforcing agent is injected into the cracks, the strength of the finish coat around the cracks is enhanced, and then adhesivemortar is injected into the cracks to repair the cracks; when a large amount of craquelure appears in a facing, the finish coat is remade, anti-cracking fibers are added to a finish coat material, andthe anti-cracking ability of the finish coat is improved; and when cracks appear in an insulation layer, the cracks are filled with fitting pieces after crack expanding, and the sufficient elastic space is provided for thermal expansion or contraction of the insulation layer. According to the insulation external wall repair technology, the repair way is convenient, the repair cost is low, and after repair, the service life of an insulation wall can be obviously prolonged.

The invention discloses a method for manufacturing a ceiling. The method is characterized by comprising the following steps of: 1, cutting a plate; 2, molding a panel material; 3, folding a notch framework; 4, cutting a rock wool block; 5, embedding a spare U-shaped framework into a notch curled edge of a molded piece, coating an adhesive on the molded piece uniformly, laying the cut rock wool block on the molded piece coated with the adhesive, and covering another molded piece coated with the adhesive on the upper side of the laid rock wool block to form a composite plate; and 6, pressing to obtain a finished product. Compared with the prior art, the method has the advantages that: the ceiling has moisture resistance, mildew resistance, good sound insulation effect, high abrasion resistance and long service life and is difficult to age; and in addition, a notch of the ceiling is fixed by the framework folded by an iron sheet, so that the ceiling can be effectively prevented from falling apart, and the service life of the ceiling can be further prolonged.

The invention discloses synthetic leather for a swivel chair. The synthetic leather comprises a bottom layer and surface layers attached to the two sides of the bottom layer. The surface layers comprise the following components of, by weight, 100 parts of PVC resin, 50-60 parts of a plasticizer, 20-30 parts of aramid fibers, 20-30 parts of silk fibers and 5-10 parts of a foaming agent. The bottom layer comprises the following components of, by weight, 100 parts of PVC resin, 30-40 parts of calcium carbonate, 5-10 parts of a stabilizer and 5-10 parts of polytetrafluoroethylene. A preparation method comprises the following steps of (1) preparation of the bottom layer, (2) preparation of the surface layers and (3) hot pressing compounding. According to the synthetic leather, creativity is high, characteristics are distinct, gas permeability and abrasion resistance are improved overall, and thus the bottom layer and the surface layers are not liable to corrosion and division in a high-temperature humid environment.

The invention discloses a door core plate production process, which comprises the following concrete steps of material selection, material splitting, drying, baking, thickness pressing, edge cleaning, plate splicing, pressing, cutting forming, sanding, polishing, painting, packaging and forming on baked wood plates by a thicknesser. A door core plate produced by the door core plate production process has the advantages that the quality is high, the appearance is attractive, and the like.

The invention discloses an installation-facilitating lithium battery comprising a plugging mechanism which comprises a main frame, a lithium battery body, clamp slots, first clamp plates, second clampplates, bolt groups, a pressing plate, a first connecting plate, first metal connectors, metal clamp sheets, buckle keys, filling pads and limiting inserting slots. The three sides of the main frameare provided with a plurality of clamp slots. The first clamp plates are inserted into the clamp slots on the two opposite long sides of the main frame. The second clamp plates inserted in the clamp slots are arranged on the plugging mechanism located between the first clamp plates. The lithium battery body is arranged on the inner side of the main frame. The lithium battery body is clamped insidethe first clamp plates and the second clamp plates. One side, which is away from the lithium battery body, of the second clamp plates is provided with the pressing plate. The pressing plate is connected with the main frame through a plurality of bolt groups. The first connecting plate is connected on one side, which is away from the pressing plate, of the plugging mechanism through screws. The installation-facilitating lithium battery is novel in structure and convenient to use and is a novel and practical installation-facilitating lithium battery.

The invention discloses a rail type partition plate medicine containing box which comprises a medicine containing part, a tail insertion part and a head blocking part. The tail insertion part and thehead blocking part are arranged at the two ends of the medicine containing part respectively. By means of the medicine containing box, when different medicines or supplementary liquid is isolated through partition plates, the partition plates only need to slide along a slide rail conveniently and rapidly, the medicine arranging time of medical staff can be saved, the partition plates can be prevented from being frequently inserted or pulled, the damage frequency of the partition plates can be reduced, the partition plates do not need to be repeatedly taken or placed, the use dependency of thepartition plates is improved, and it is avoided that medicines are mixed and placed and medicine application mistakes are made; in addition, it can be avoided that the partition plates are abandoned everywhere, it can be avoided that bed number identification boards fall off and are lost, the problem that an existing medicine containing box is contaminated by liquid medicines and cannot be easilycleaned can be solved, two or more medicine containing boxes can be conveniently matched and fixedly connected in series through locking insertion pieces and locking pieces, multiple groups of supplementary liquid can be orderly placed, and the medicine containing boxes cannot be easily separated for the same patient so that the messing-up or mistaking risks can be avoided.

The invention relates to a rolled blind hole cellular board and a method for manufacturing a composite cellular board with the same. The surface of one roller of a rolling machine is full of hexagonal nail-shaped protruding pressing heads, so that one surface of a rolled metal plate is flat and straight, and the other surface of the rolled metal plate is provided with blind hole cellular reinforcement ribs. Production is simple, the yield is large, strength is high, and the defect that a panel and a core plate of a common glued cellular board are prone to separating is avoided. Metal blind hole cellular boards, such as cold-rolled aluminum alloy blind hole cellular boards for advertisement boards, automobile cases and planes, and steel blind hole cellular boards for roofs, security doors and ships can be rolled, and non-metal blind hole cellular boards, such as wood blind hole cellular boards for packages and furniture, and (rigid foam) plastic blind hole cellular boards for luggage and household appliances, especially composite cellular boards composed of blind hole cellular boards and rigid form plates can be rolled. The rolled blind hole cellular board can serve as novel building and decoration materials, traffic tool high-strength structural parts and the like.

The invention relates to the field of preparation of semiconductor materials, and discloses a preparation method of a heterostructure thin film capable of reducing thin film stripping thermal stress.The method specifically comprises the following steps: firstly, providing a heterostructure thin film substrate which comprises a first surface and a second surface which are oppositely arranged; sequentially depositing a first indium layer and a first gold layer on the first surface to form a first substrate to be bonded; secondly, providing a support substrate; sequentially depositing a second indium layer and a second gold layer on the third surface of the support substrate to form a second substrate to be bonded; placing a first to-be-bonded substrate on a second to-be-bonded substrate, and enabling the first gold layer to be in contact with the second gold layer to form a to-be-bonded substrate; and finally, applying an acting force to the second surface, and meanwhile, carrying out bonding, annealing and stripping transfer on the substrate to be bonded to obtain the heterostructure film. The preparation method of the heterostructure film provided by the invention has the characteristics that the area of the peeled and transferred piezoelectric film is increased, and the film is not easy to crack.

The invention relates to flocking artificial leather, and particularly relates to flocking artificial leather with a metal wire. The flocking artificial leather with the metal wire is orderly provided with a substrate layer (1), a PVC (polyvinyl chloride) plastic layer (3) and a flocking layer (4) from bottom to top. The flocking artificial leather with the metal wire is characterized in that a metal wire layer (2) is also arranged between the substrate layer (1) and the PVC plastic layer (3); and the metal wire layer (2) is an iron wire, a steel wire, a copper wire, an aluminum wire or is formed by distributing other metal wires in a net shape. The metal wire layer is added between the substrate layer and the PVC plastic layer, and the metal wires is in the reticular distribution, so that a knapsack or a handbag made of the flocking artificial leather is not easily cut apart by a blade, and has high-strength anti-cracking property under the condition of ensuring soft appearance. Thus, the property safety of a user is protected.

The invention relates to a buccal tablet for prevention and treatment of chronic pharyngitis. The buccal tablet is prepared from the following raw materials by weight: 44-50 parts of royal jelly, 17-23 parts of honey, 5-6 parts of propolis, 20-30 parts of platycodon grandiflorus, 10-16 parts of mint, 10-16 parts of milk, and 4.5-5.5 parts of pharmaceutical excipients. The buccal tablet for prevention and treatment of chronic pharyngitis prepared according to the formula provided by the invention has the characteristics of cool and refreshing taste, smooth surface, uniform color, difficult split, and no harm to the human spleen and stomach, and has the efficacy of diminishing inflammation, killing bacteria and resisting viruses, relieving sore throat and eliminating phlegm, and enhancing the human body immunity.

The invention discloses a Keke tablet. The composition thereof comprises dry extract powder from medicinal materials, sucrose powder, medical talc powder, medical silicon dioxide, medical magnesium stearate and 20-95% of medical alcohol. The preparation method thereof is as follows: firstly, the sucrose powder and the 20-95% of medical alcohol are mixed evenly, and then mixed with the dry extract powder from the medicinal materials evenly to prepare tiny particles which take moist sucrose particles as crystal nucleus and are externally wrapped with the dry extract powder from the medicinal materials, subsequently the particles are evenly mixed with the raw materials like medical talc powder, medical silicon dioxide and magnesium stearate in accordance with a certain weight proportion, and then tabletting is carried out to prepare the Keke tablet. The invention effectively improves the hardness and stability of the Keke tablet; greatly reduces the occurrence of incapability of coating film, poor stability, failed test, and the like, caused by insufficient hardness of uncoated tablets, split tablets, loose tablets and coarse surface in the processes of production, transportation and storage of preparations; guarantees the operability of the Keke tablet of the invention during production as well as performance stability of the products in the validity period; furthermore, the preparation process is simple and easy to operate, and the production cost is low.

The present invention relates to an artificial leather with metal wires and with advantages of reasonable structure and good use performance. The artificial leather comprises a matrix layer (1) on thelower layer, a PVC plastic layer (3) on the upper layer, and a metal wire layer (2) in the middle layer, wherein the metal wire layer (2) is formed by distributing metal wires in a mesh manner, a lining fabric layer is compounded on the back surface of the matrix layer, the warp thread of the lining fabric layer uses casein fiber, the weft thread of the lining fabric layer uses viscose fiber, thediameter of the casein fiber is 18.62 [mu]m, the fineness of the casein fiber is 252 dtex, the diameter of the viscose fiber is 8.29 [mu]m, the fineness of the viscose fiber is 198 dtex, the warp density is 25.9 / cm, the weft density is 16.3 / cm, and the enhanced twill weave structure is used. According to the present invention, the knapsack or the handbag prepared from the artificial leather is not easily broken by the cutter blade, and the artificial leather has reasonable structure and good use performance.

The invention belongs to the technical field of ceramic machining, and particularly relates to cordierite honeycomb ceramic and a preparation method thereof, in particular to cordierite honeycomb ceramic synthesized and sintered by using magnesium mineral and clay as base materials, and a preparation method thereof. The cordierite honeycomb ceramic prepared through the preparation method provided by the invention has excellent adsorbing and exchanging functions and good heat stability; meanwhile, the preparation method disclosed by the invention is simple in process, and by the preparation method, the sintering temperature is lowered and the energy consumption is reduced by about 20-25%.

The invention discloses a double braided layer high-pressure wear-resistant flexible pipe. The double braided layer high-pressure wear-resistant flexible pipe comprises a flexible pipe main body; theflexible pipe main body comprises an inner pipe, a first braided layer, a second braided layer, and a wear-resistant layer successively from inside out; the inner pipe is prepared through extrusion moulding using a single screw extruder; the first braided layer is formed on the external surface of the inner pipe using a braiding machine through braiding; the second braided layer is formed on the external surface of the first braided layer using a braiding machine through braiding; the wear-resistant layer is used for coating the external surface of the second braided layer through extrusion using the single screw extruder. The double braided layer high-pressure wear-resistant flexible pipe is capable of avoiding defects in the prior art, and is prepared through spray coating of an environment protection plastic glue or polyurethane adhesive, so that the structures of the flexible pipe main body between the layers are stable, cracking is not easily caused, and flexible pipe service lifeis prolonged; at the same time, the wear-resistant layer is prepared from thermoplastic polyurethane elastomer rubber, so that the wear resistance, oil resistance, transparency, and elasticity are excellent, halogen free flame resistance is achieved, and environment protection requirements are satisfied; and in addition, the flexible pipe main body is adopted with a high strength polyester yarn braided and coppered steel wire double layer braided structure, so that flexible pipe toughness and pressure resistance are improved.

The invention relates to the field of component analysis, in particular to a ferro-molybdenum sample, a preparation method thereof and a method for determining the content of components in ferro-molybdenum. The preparation method of the ferromolybdenum sample comprises the following steps: adding anhydrous lithium tetraborate, ferromolybdenum, sodium nitrate and lithium carbonate into a container;then, adding a release agent for the first time for pre-oxidation treatment; carrying out first-stage melting, and then cooling to room temperature; and after the release agent is added for the second time, performing second-stage melting, and then performing cooling. In the process of preparing the ferromolybdenum sample, the release agent is added twice at different moments, so that the total use amount of the release agent can be reduced, and the waste and loss of the release agent are avoided; the problems of cracking and difficulty in demolding due to local excess of the release agent caused by one-time addition of the release agent are solved; meanwhile, the sample is not easy to crack.

The invention discloses a formula of health-care buccal tablets capable of refreshing, relieving fatigue and clearing heat from throat. The formula of the health-care buccal tablets is prepared from the following raw materials in parts by weight: 15 to 25 parts of honeysuckle flowers, 9 to 18 parts of dandelion, 16 to 22 parts of lemon, 4 to 9 parts of momordica grosvenori, 18 to 25 parts of coffee, 30 to 38 parts of green tea, 20 to 40 parts of areca-nut, 4 to 10 parts of liquorice roots, 6 to 12 parts of fructo-oligose, 6 to 12 parts of maltodextrin, 1 to 3 parts of magnesium stearate, 1 to3 parts of a talcum powder and 1 to 4 parts of soluble starch. The invention also discloses a preparation method of the formula of the health-care buccal tablets. The health-care buccal tablets are prepared by sequentially decocting and extracting the raw materials, concentrating into paste and preparing a dry paste fine powder, granules and tablets. The health-care buccal tablets capable of refreshing, relieving fatigue and clearing heat from throat, which is provided by the invention, can improve the immunity of a human body, enables people to feel excited, can eliminate fatigue after intensive labor, can relieve sore throat and can reduce throat discomfort.

The invention provides a pharmaceutical composition containing obeticholic acid or a derivative thereof, as well as a preparation method and application thereof. According to the preparation method of the pharmaceutical composition of obeticholic acid or the derivative thereof, the operation step of mixing microcrystalline cellulose in batches for multiple times and multiple steps is omitted, and the dissolution rate and the quality uniformity of the pharmaceutical composition are improved by optimizing the preparation process; and the prepared pharmaceutical composition has the advantages of high product uniformity, low possibility of cracking, high dissolution rate and the like, so that the effectiveness and the safety of the medicine are improved, and the quality problems of preparation friability and the like are effectively solved.

The invention discloses a car brake drum. The car brake drum comprises a cylindrical brake drum main body, wherein one end of the brake drum main body is a connecting part while the other end thereof is a brake part; more than three air door grooves are formed in the outer edge of the connecting part; a pressing steel ring is arranged on the outer edge of the brake part; multiple circular arc-shaped radiating ribs are uniformly arranged on the outer wall of the brake drum main body. The car brake drum is convenient to install as more than three air door grooves are formed in the outer edge of the connecting part of the brake drum and the number of the air door grooves is added, is good in heat radiation effect as the circular arc-shaped radiating ribs are uniformly arranged on the outer wall to generate an airflow during the work time, and is not easy to crack as the pressing steel ring is arranged on the outer edge of the brake part of the brake drum.

The invention relates to an imitation leather decorative film with metal wires. The decorative film comprises a lower substrate layer (1) and an upper imitation leather layer (3) and is characterized by further comprising a middle metal wire layer (2) which is formed by use of metal wires in network distribution. As the middle metal wire layer is added to the imitation leather decorative film and the metal wires are in network distribution, a knapsack or a handbag manufactured by use of the imitation leather decorative film is not easy to cut apart by a blade and the property safety of a user is protected.