6results about How to "Pure ingredients" patented technology

The invention relates to a method for solving interface failure of a resistance spot-welded joint of a 980MPa-grade galvanized complex-phase steel plate. The method comprises the following steps: determining preheating current and preheating time according to the plate thickness of a welding sample; determining the number of welding pulses and the single-pulse welding time according to the plate thickness of the welding sample; according to the plate thickness of the welding sample, the cooling interval time of preheating pulse and welding pulse and the welding pulse interval time are determined; determining welding pressure according to the steel plate thickness of the welding sample; and determining the dwell time according to the plate thickness of the welding sample. The method has the advantages that the pulse form with ultra-large preheating current and small preheating time is used, the content of a zinc layer in a weld nugget is greatly reduced, then the multi-pulse interval time is determined according to the plate thickness of a welding sample, the cooling interval time between welding pulses is long, and the welding precision is high. The method aims at providing sufficient time to enable nugget structures to tend to be relatively stable after a previous welding pulse is finished, and a next pulse is applied when the temperature of a welding spot is close to the normal temperature state, so that the nugget is further increased.

This utility model discloses a vacuum coating apparatus, comprising: a vacuum system including a vacuum chamber; a winding system disposed in the vacuum chamber for conveying a base film, comprising at least two cooling rollers arranged along a first horizontal direction, with an installation gap formed between adjacent cooling rollers; an evaporation source system disposed in the vacuum chamber, comprising evaporation sources located below the cooling rollers and corresponding to each cooling roller; and at least one baffle mechanism disposed in the installation gaps, corresponding to each installation gap, to prevent vapor crosstalk between adjacent evaporation sources; wherein the bottom height of the baffle mechanism is not higher than the top height of the evaporation source, and the top height of the baffle mechanism is not lower than the bottom height of the cooling rollers. This utility model, employing the above structure, can avoid mutual interference of vapors at adjacent cooling rollers, improving coating quality and subsequent cleaning of the vacuum chamber.

The present invention provides a composition for inhibiting Porphyromonas gingivalis, and its preparation method and application, and the present invention belongs to the field of pet oral cleaning technology. The composition is composed of the following components in mass percentage: egg white lysozyme 0.1-2%, glucanase 0.1-2%, propolis extract 0.1-1%, persimmon extract 0.2-4%, sodium tripolyphosphate 0.2-4%, calcium glycerophosphate 0.1-1%, erythritol 0.5-5%, sorbitol 2-10%, vitamin C 0.2-3%, zinc gluconate 0.2-0.5%, sanguinarine 0.1-1%, PEG-40 castor oil 0.5-3%, peppermint oil 0.1-1%, propylene glycol 1-10%, glycerol 2-20%, and the balance is water. The composition prepared by the present invention has an inhibitory effect on the growth of Porphyromonas gingivalis and the formation of its biofilm, and also avoids the problem of oral microecological disorder.

This invention discloses a multi-head combination scale for nut processing, comprising a combination scale, a transmission device, a separating device, a converging device, and a motor. The motor is detachably mounted on the top surface of the transmission device, driving a rotating component on the transmission device to perform rotational motion. The transmission device and the separating device are detachably mounted on the outside of the combination scale. This multi-head combination scale for nut processing, by setting a rotary sieving device on the multi-head combination scale, achieves vibration filtering of impurities and accurate weighing of nut products, effectively separating impurities from the target product. This ensures the uniformity and consistency of material composition in subsequent weighing processes, thereby improving the accuracy of weight detection. This not only helps to ensure the stability of packaged weight and reduce the error rate, but also improves the purity of the final product, providing consumers with products with more accurate net weight, and thus enhancing product quality reliability and brand reputation.

The present invention discloses a TFB oxygen-enriched gasification chamber and a gasifier, wherein the gasifier comprises a variable cross-section section at the bottom and an upper straight section at the top, wherein the variable cross-section section comprises a lower conical section at the bottom, and a high thermal conductivity and wear-resistant wall surface is selected. The high thermal conductivity and wear-resistant wall surface is composed of a sealing steel plate, a water-cooling pipe row and a silicon carbide refractory material layer, wherein the sealing steel plate is arranged on the outermost layer as the outer wall surface, the silicon carbide refractory material layer is arranged as the inner wall surface, and the water-cooling pipe row is arranged in the silicon carbide refractory material layer and is arranged close to the sealing steel plate. The upper straight section adopts a membrane water-cooled wall surface, and a high-aluminum refractory layer is applied to its inner wall surface, and the water-cooling pipe row of the lower conical section is connected to the membrane water-cooled wall surface of the transition straight section through a header. The gasifier comprises a gasifier chamber and a waste heat boiler and a purification device connected in sequence. The present invention has the advantages of high gasification intensity, high gasification efficiency, stable and controllable operation, etc.

The invention discloses a compound water-based working solution for cleaning and passivating the inner wall of a stainless steel pipeline and a use method thereof. The working solution is prepared by compounding an organic acid complexing agent, a fluorine-containing inorganic acid dissolving agent, an oxidizing inorganic acid passivating agent, a nitrogen-containing heterocyclic metal corrosion inhibitor, an anionic surfactant and water. The use method comprises the following steps: carrying out alkaline pretreatment and flushing on the stainless steel pipeline system; the preheated working solution is pumped into a system to be circularly cleaned and passivated; and finally, neutralizing and finally washing. Through the synergistic effect of all the components, powerful rust removal and high-quality passivation are integrated into one step, three kinds of stubborn red rust can be thoroughly removed, meanwhile, a stainless steel substrate is effectively protected against over corrosion, the treated surface keeps the original silvery white luster and smoothness of metal, a compact passivation film is formed, the water quality of a system is recovered quickly, and the service life of the system is prolonged. The method is suitable for regeneration maintenance of old purified water systems.