41results about How to "Not easy to embrittle" patented technology

The invention discloses a method for preparing a foamed ceramic insulation board by a waste glass ceramic wafer, belonging to the field of preparation technology of the foamed ceramic insulation board. The method comprises the steps of: washing the waste glass ceramic wafer with clear water, drying and grinding by ball milling to obtain waste glass ceramic powder with the fineness less than or equal to 100mu m; mixing the waste glass ceramic powder, pulverized fuel ash, furnace slag, coal gangue, ceramic tailings, foaming agent and modifying agent according to the mass ratio of (30-40):(10-15):(5-7):(10-18):(25-35):(1.8-2.2):(1.1-1.5); putting the mixture into a ball grinding mill, carrying out wet grinding and evenly mixing to form mixed slurry; drying by a pressure type spray granulation dryer and putting the dried product into a foaming refractory mould coated with aluminum oxide; heating to 1120-1150 DEG C in a heating furnace; and finally, annealing, cooling and cutting to obtain the foamed ceramic insulation board. The method is low in production cost and simple in technology, and can be used for continuously preparing the porous foamed ceramic insulation board with large size; and the product is good in performances.

The invention discloses a basalt fiber composite guy cable, which comprises a center composite rib, peripheral composite ribs, an inner protective sleeve, a filler and an outer protective sleeve, wherein the center composite rib is positioned in the center position; the peripheral composite ribs are wound on the center composite rib; the center composite rib and the peripheral composite ribs are wrapped in the inner protective sleeve; the filler is filled between the outer protective sleeve and the inner protective sleeve and is an elastic filler; the center composite rib is formed by compounding continuous basalt fiber and glass fiber through a resin matrix; the peripheral composite ribs are formed by compounding carbon fiber and aramid fiber through the resin matrix. The basalt fiber composite guy cable is high in strength, acid and alkaline corrosion resistant, and high in fatigue resistance, can be exposed and used in the open air for a long time, is long in service life and eliminates the potential safety hazard of fracture during use.

The invention discloses a pre-manufacturing method and a pre-manufactured structure for an LED package. The pre-manufactured structure of the LED package is manufactured mainly through the steps of stamping, coarsening, mold sealing, sticking, electroplating and the like. The pre-manufactured structure comprises a reflection cup rack, an insulation layer and a wire frame which are stuck together in sequence from the top down, wherein the reflection cup can resist high temperature generated by an LED in long-term operation, provides the superexcellent effects of heat conducting and extracting, and prolongs the service life of the LED; besides, the high-temperature-resist insulation layer ensures that the pre-manufactured structure can resist heat and is less susceptible to cracking and embrittling, thereby reducing the damage rate and use cost of the pre-manufactured structure of the LED package.

The invention provides a polyester resin composition including 97.0 mass% to 99.9 mass% of a polyester resin (A) and 0.1 mass % to 3.0 mass% of a polycarbodiimide (B), wherein dicarboxylic acid constituent units in the polyester resin (A) include terephthalic acid units and / or 2,6-napthalene dicarboxylic acid units, 5 mol% to 90 mol% of the diol constituent units in the polyester resin (A) are units derived from a diol having a cyclic acetal skeleton represented by formula (1) or formula (2), 0 mol% to 90 mol% of the diol constituent units being units derived from an alicyclic diol, and the polycarbodiimide (B) having two or more carbodiimide groups in each molecule thereof. (In formula (1), R1 and R2 each independently represent a C1-10 aliphatic group, a C3-10 alicyclic group, or a C6-10 aromatic group.) (In formula (2), R1 is the same as in formula (1), and R3 represents a C1-10 aliphatic group, a C3-10 alicyclic group, or a C6-10 aromatic group.).