10results about How to "Avoid bond failure" patented technology

The utility model discloses an ultra-high-performance cement-based thin overlay anti-crack structure which comprises a thin overlay additionally laid on an old cement concrete pavement, and the thin overlay is made of ultra-high-performance concrete. The crack isolating layer is paved on the pavement crack in advance and is positioned below the thin overlay; uHPC (Ultra-High Performance Concrete) and crack isolation are adopted as an anti-crack structure of a thin overlay, and the pavement slotting (slotting along the full length or local part of the crack) or / and the crack isolation layer are / is adopted to adapt to the shrinkage and expansion of the concrete, so that the expansion of the reflection crack is prevented, and the anti-crack performance of the thin overlay is improved. And meanwhile, pavement slotting is beneficial to avoiding buckling instability damage of the UHPC thin overlay and bonding failure of an interlayer interface caused by expansion of adjacent plates at the cracking part of the old pavement. By means of the structure, the thin overlay has good stability, crack resistance and durability, and the problems of buckling and disengaging of the thin overlay and early fracture, fatigue failure and the like under the heavy load effect can be effectively solved.

The utility model discloses a kind of high-temperature-resistant easy-to-tear double-sided tapes, it is related to the technical field of double-sided tape, including double-sided tape strip, glass fiber net, silica gel pad and corrugated copper sheet, the outside of double-sided tape strip is symmetrically provided with release paper layer, one side of a group release paper layer is bonded with adhesive layer one, the other group release paper layer is bonded with adhesive layer two on one side, the outside of adhesive layer one is provided with bonding mechanism, the structural strength of adhesive layer one is increased by glass fiber net arranged on outside of bonding mechanism, avoid adhesive layer one and crack, damage due to excessive stress, the buffer mechanism is arranged below adhesive layer one, the buffer mechanism is buffered and radiated by silica gel pad and multiple corrugated copper sheets. As the structural support assembly of buffer mechanism, the corrugated structure of multiple corrugated copper sheets not only enhances the overall rigidity of mechanism, but also can share part of impact force by deformation, cooperate silica gel pad to further improve buffering effect.

This invention discloses a hot melt adhesive for high-temperature protective clothing and its preparation method, comprising the following raw materials: Fischer-Tropsch wax, styrene-isoprene-styrene block copolymer with 0% diblock content, styrene-isoprene-styrene block copolymer with 20-30% diblock content, styrene-isoprene-styrene block copolymer with 40-50% diblock content, rosin resin, petroleum resin, ethylene-vinyl acetate copolymer, and antioxidant. This hot melt adhesive requires no toxic solvents, possesses both heat resistance and water resistance, and is suitable for high-temperature protective clothing. The preparation method of this hot melt adhesive involves heating and mixing polymer materials without adding any solvents or toxic substances during the preparation process, reducing the risk of toluene poisoning, completely solving the problems of solvent evaporation and recovery, and, more importantly, eliminating safety hazards in the storage and use of organic chemicals, achieving environmentally friendly, safe, and efficient production.

The invention relates to the field of lithium ion batteries, and in particular to an acrylonitrile water-based binder for lithium ion batteries and a preparation process thereof, and is used to solve the problems that traditional binders are easy to pollute the environment, have insufficient bonding strength, poor compatibility with electrode materials, poor stability and poor electrochemical performance, which limit their application in lithium ion batteries. The acrylonitrile water-based binder for lithium ion batteries and the preparation process of the invention improve the bonding force between the binder and the electrode material, enhance the mechanical strength and stability of the electrode, and improve the conductivity and electrochemical performance of the electrode, thereby improving the charge and discharge performance, cycle life and rate performance of the lithium ion battery, enhancing the overall performance of the lithium ion battery, and promoting the sustainable development of the lithium ion battery industry. In addition, the acrylonitrile water-based binder adopts a water-based system, does not contain an organic solvent, and is more environmentally friendly.

The utility model relates to the technical field of energy storage equipment, in particular to a battery and a battery module, the battery comprises a shell, the shell is provided with a first side wall and a second side wall which are oppositely arranged along a first direction, the first side wall is provided with a first clamping part, and the second side wall is provided with a second clamping part; the first clamping part of one of the adjacent batteries is clamped and matched with the second clamping part of the other battery, one of the first clamping part and the second clamping part which are clamped and matched is a clamping bulge, and the other one of the first clamping part and the second clamping part is a clamping groove. The battery module comprises a plurality of batteries, and the plurality of batteries are sequentially arranged along a first direction. The adjacent batteries of the battery module are not easy to shake relatively, so that the bonding failure of the insulating films is avoided, the insulating property of the batteries is ensured, the heat dissipation of the batteries is not influenced, and the cost is not excessively increased.

The invention discloses a method for inhibiting rust of rusted steel bars in a concrete structure, and aims to solve the problems that in the prior art, a safe, environment-friendly and long-acting steel bar corrosion inhibitor convenient to construct is lacked, and a long-acting steel bar corrosion prevention method formed by compounding materials such as an efficient anti-corrosion coating is lacked. Through three innovations of organic silicon modification, a nano-composite technology and a self-crosslinking system, the core problems of poor weather resistance, high VOC (Volatile Organic Compounds), insufficient dispersion stability and the like of the traditional acrylic emulsion are solved, and the acrylic emulsion is particularly suitable for severe environments with high ultraviolet rays, high humidity and the like, so that long-period corrosion prevention is realized, and the service performance of concrete is improved.

The present application relates to the field of battery technology, and specifically to a battery pack, including a battery pack and a box, wherein the battery pack is arranged inside the box, the battery pack includes a battery cell, the battery cell has a pole, and the pole is arranged on the large surface of the battery cell and close to the end in the length direction. The battery pack also includes a potting glue, and the potting glue is at least partially connected between the end in the length direction of the battery pack and the end beam of the box, and the bonding area between the potting glue and the metal area of ​​the battery pack is S1, and the bonding area between the potting glue and the box is S2, and the value range of S1 / S2 is 1 / 5-1 / 2. In the present application, the potting glue plays the role of insulation, fixing, and sealing at the same time, improves the installation stability of the battery pack, improves the energy density of the battery pack, and ensures the insulation and sealing performance of the battery pack.

The utility model discloses a kind of polystyrene composite insulation board outer wall external thermal insulation structures, it is related to polystyrene composite insulation board technical field.It includes setting in order leveler, adhesive layer, thermal insulation layer, plastering mortar and glass fiber mesh layer, decorative layer;Thermal insulation layer is polystyrene composite insulation board material quality;Multiple preset slots are opened on thermal insulation layer;It further includes expansion bolt, and the bolt head portion fixed connection of expansion bolt is limited to limit plate, limit plate and preset slot correspond;Fixed groove is provided in limit plate outside;It further includes flexible gasket corresponding with preset slot.The utility model has the beneficial effects that this structure, it is more firm to be fixed on overall outer wall, when more not easy to crack or fall off when being impacted by external force.

The utility model provides an automatic chip mounting device for a battery array. The automatic chip mounting device comprises a pick-and-place mechanism, a dispensing mechanism, a platform mechanism and a movement mechanism. According to the utility model, the visual assembly is combined with the multi-axis module to realize high-precision placement and attachment of the cells, so that the alignment error of the cells and the cellular board is extremely small, and the photoelectric conversion efficiency is improved. And meanwhile, the double-screw dispensing mechanism is adopted, so that bonding failure caused by glue overflowing or insufficient glue amount is avoided. In addition, the suction cup assembly can grab a plurality of batteries at a time, and the production efficiency is improved.