54results about How to "Non-oxidizing" patented technology

The invention discloses an environment-friendly paste discharge agent for textile printing and a preparation method thereof. The environment-friendly paste discharge agent comprises the following components in parts by weight: 30-60 parts of decamethyl cyclopentasiloxane, 40-70 parts of thiourea dioxide, 1-3 parts of surfactant and 3-6 parts of glycerin. The preparation method comprises the steps: putting the decamethyl cyclopentasiloxane into a ball grinder container; adding the surfactant to be uniformly dispersed or dissolved and uniformly agitated; and then adding the thiourea dioxide into the ball grinder container to blend and grind for 1-3 hours. Specific liquid compound decamethyl cyclopentasiloxane as a disperse medium and the thiourea dioxide are not subjected to chemical reaction; With the environment-friendly paste discharge agent provided by the invention, contact of the thiourea dioxide with the external water and air is isolated; the stability of the thiourea dioxide is improved; the discharge effect is excellent; and the problems of low solubility, poor dispersible uniformity in discharge pulp, poor net permeability and insufficient development of the discharge action caused by common thiourea dioxide used as the discharge agent are overcome.

The invention provides a lubricating liquid for use in aluminum pipe expansion and an aluminum pipe expansion method using same. The lubricating liquid is prepared from the following materials in percentage by weight: 0.9 to 1 percent of trichloroethylene, 1.8 to 2 percent of chromic anhydride, 6 to 7 percent of liquid cleanser essence solution in which the water to liquid cleanser essence is 1:5,000, and 90 to 91.3 percent of washing-up liquid. The aluminum pipe expansion method comprises the following steps: 1) spreading the lubricating liquid on the inner wall of the aluminum pipe before the expansion of the aluminum pipe; and 2) washing the lubricating liquid with high-pressure constant-temperature water after the expansion of the aluminum pipe. The lubricating liquid has the following advantages of: 1) avoiding damaging the aluminum pipe due to no corrosive and oxidizing properties; 2) washing easily enough to keep the smooth of the pipe, increasing the flexibility of the aluminum pipe to prevent the aluminum pipe from cracking and improving rate of finished products; 3) forming a protective film which can protect an evaporator and prolong the service life of the product; and 4) realizing the replacement of copper by aluminum, reducing product cost and making the aluminum achieve the same heat conducting effect as copper.