33results about How to "Surface tension" patented technology

A fluid dispense tip includes a bevel at an opening to reduce the amount of surface tension, or “land”, at the opening. The bevel is formed by grinding in a longitudinal direction such that any tooling scars resulting from the grinding operation are likewise longitudinally oriented, further reducing the amount of surface tension in the tip, thereby leading to heightened dispensing accuracy. The tip may be machined from stock as a unitary piece, to increase its lifetime, and may be formed with a bore of a relatively large diameter that is tapered down to a smaller diameter near the tip opening, to allow for delivery of fluid through the tip body at a decreased pressure. A cleaning tool may be provided for removing residual material from the inner surfaces of the tip. A removable liner sleeve may be provided within the bore to reduce the effective inner diameter of the dispense tip.

A fluid dispense tip includes a bevel at an opening to reduce the amount of surface tension, or “land”, at the opening. The bevel is formed by grinding in a longitudinal direction such that any tooling scars resulting from the grinding operation are likewise longitudinally oriented, further reducing the amount of surface tension in the tip, thereby leading to heightened dispensing accuracy. The tip may be machined from stock as a unitary piece, to increase its lifetime, and may be formed with a bore of a relatively large diameter that is tapered down to a smaller diameter near the tip opening, to allow for delivery of fluid through the tip body at a decreased pressure. The tip may optionally be formed with a Luer™-style fitting on the body, such that the tip is compatible with pumps that utilize such a fitting.

A fluid dispense tip includes a bevel at an opening to reduce the amount of surface tension, or “land”, at the opening. The bevel is formed by grinding in a longitudinal direction such that any tooling scars resulting from the grinding operation are likewise longitudinally oriented, further reducing the amount of surface tension in the tip, thereby leading to heightened dispensing accuracy. The tip may be machined from stock as a unitary piece, to increase its lifetime, and may be formed with a bore of a relatively large diameter that is tapered down to a smaller diameter near the tip opening, to allow for delivery of fluid through the tip body at a decreased pressure. A cleaning tool may be provided for removing residual material from the inner surfaces of the tip. A removable liner sleeve may be provided within the bore to reduce the effective inner diameter of the dispense tip.

The invention relates to a code spraying ink modifying agent which comprises the components with weight percentage: 20-60wt% of solvent, 10-40wt% of latent solvent, 1-10wt% of anticoagulant, 1-10wt% of electrical conduction control agent, 0.1-6wt% of pH conditioning agent, 5-15wt% of adhesive force promoting agent, 0.1-4wt% of osmotic agent, 0.5-9wt% of stabilizing agent and 0.1-5wt% of coloring agent. The anticoagulant and the latent solvent contained in the code spraying ink modifying agent can effectively improve the phenomenon that a nozzle is easy to plug by code spraying ink, and ensures the code spraying ink to be dried rapidly and print more clearly and smoothly; the contained adhesive force promoting agent can be used for strengthening the adhesiveness of the code spraying ink for base material, especially metal base material, so as to lead the image to be firmer and hard wearing. Various auxiliary agents in the invention are matched for use, so that the performance of the code spraying ink can be effectively enhanced, the image resolution ratio is improved, the separation of ink dots is clear, the problem of trickling and deforming of the ink can be solved, and the corrosion resistance is improved.

The invention discloses a method for manufacturing a graphite negative plate, which comprises the steps of 1) pulverizing petroleum coke, 2) using petroleum coke particles, high-temperature asphalt adhesive and stearic acid mixture, 3) multi-stage temperature coating and bonding, 4) cooling to normal temperature, 5) adding Fe 2 o 3 Graphitization treatment, 6) Nano-Fe coated 3 o 4 Ionic liquid and magnetization treatment, 7) drying to obtain the finished product. This method can not only increase the degree of graphitization and greatly reduce the graphitization temperature of various amorphous carbons, but also improve the first charge and discharge efficiency and cycle stability of graphite anode materials, and the surface is coated with magnetic nanoparticles Fe3O4 and magnetized treatment, greatly reducing the pole piece OI value.