233results about How to "High impact" patented technology

A portable coordinate measurement machine comprises an articulated arm having jointed arm segments. The arm includes joint assemblies which include at least one read head together with one or more (preferably five) sensors (preferably proximity sensors) in communication with a periodic pattern of a measurable characteristic, the pattern and read heads being positioned within the joint so as to be rotatable with respect to each other.

A method for improving the measurement accuracy of a portable coordinate measurement machine which comprises an articulated arm having jointed arm segments is presented. This method includes sensing deformation of a portion of the articulated arm when the arm is placed under a load, this deformation causing an error in the measurement made by the CMM, and correcting such error in response to the sensed deformation.

A method for improving the measurement accuracy of a portable coordinate measurement machine which comprises an articulated arm having jointed arm segments is presented. This method includes sensing deformation of a portion of the articulated arm when the arm is placed under a load, this deformation causing an error in the measurement made by the CMM, and correcting such error in response to the sensed deformation.

Disclosed are a power management system and associated method that not only initiate a “greenout” to avoid the negative impact of high loads (i.e., to avoid high power cost, negative environmental impact, brownouts, and ultimately blackouts), but can also predict the initiation of such a “greenout”. Predicting the initiation of a “greenout” and communicating the prediction to one or more of the various electronic devices connected to the power grid allows the electronic device(s) to take preparatory action to avoid and/or limit any negative impact that may be caused by the “greenout”.

The invention discloses a low-odor antistatic and high tenacity polycarbonate composite, comprising 30-75 parts of polycarbonate by weight parts, and the polymerized ingredients are as follows by weight parts: 10-65 parts of acrylonitrile-butadiene-styrene grafting copolymer ABS, 5-15 parts of macromolecule antistatic agents and 2-10 parts of styrene-N-benzyl maleimide-maleic anhydride copolymer; the olycarbonate composite prepared by the technical proposal is manufactured into automobile plastic interior decorating products, has the advantages of low odor and high shock resistance and being hard to stick and adsorb the dust, and is used for manufacturing various automobile interior decorating products, such as automobile instrument panel, door panel and the like.

The invention discloses an antistatic and ultraviolet resistant PC/ASA material composition and belongs to the field of macromolecular composition materials. The composition is characterized by consisting of the following components in part by weight: 30 to 85 parts of polycarbonate, 5 to 30 parts of acrylonitrile-styrene-acrylic ester graft copolymer, 0 to 30 parts of acrylonitrile-styrene copolymer, 5 to 15 parts of macromolecular antistatic agent, 2 to 10 parts of compatilizer, 0.2 to 2 parts of light stabilizer and 0.2 to 1 part of antioxidant. The interior plastic parts of an automobile, which are made of the PC/ASA composition of the invention, have the advantages of high weather resistance, ultraviolet resistance and heat resistance, difficult adsorption of dust and the like, and can be used for manufacturing interior-exterior parts, such as automotive door plates and shells of inner-outer view mirrors, of various automobiles.

The invention discloses an impacting-sliding composite frictional wear testing device and a method thereof. The method comprises the following steps that a spherical upper test piece is clamped on an upper clamp and a planar lower test piece is clamped by using a lower clamp; the lower clamp is controlled to move up and down by a precise screw lifting platform so that the upper test piece and the lower test piece come into contact; a servo motor drives the upper test piece to do up-down reciprocating motion at set frequency f, times N and displacement S by an eccentric disc, an upper knuckle bearing, a lower knuckle bearing, an impacting shaft, a spring leaf and an upper clamp, and carries out reciprocating impact on the lower test piece; in the impacting process, the spring leaf is deformed under the action of stress, so that impacting-sliding composite frictional wear between the upper test piece and the lower test piece is realized; and simultaneously, the force borne by the lower test piece is tested by a three-dimensional dynamic piezoelectric sensor connected with the lower clamp and is transmitted to a data acquisition control system, and a friction coefficient-cycle time curve is obtained by analysis. The impacting-sliding composite frictional wear testing device and the method disclosed by the invention have the advantages that the material can conveniently generate rigidity-adjustable impacting-sliding composite frictional wear, the automation degree is high and the repeatability of experimental data is good.

The invention belongs to plastic profile product modifier technical field and discloses a preparation method for a PVC anti-impact modifier chlorinated polyethylene. The invention is mainly technically characterized in that after dispersant, emulsifier, initiator and powdery high-density polyethylene resin are added into a chlorinating reactor with water inside in a stirring state, then the mixture is heated and processed through three chlorine reactions at different temperature ranges; after the reaction, the enwrapped HCl formed in the reactor is discharged; after repeated hot water washing, centrifugal dehydration and drying, calcium stearate, calcium carbonate and lanthanum carbonate are added to obtain the finished product through stirring, mixing and screening. As the high-density polyethylene resin in the preparation technology is high-mesh powdery material and three chlorine reactions are needed in the process, the chlorinated polyethylene prepared by the technology has higher thermal stable temperature and lower melting heat; if the chlorinated polyethylene serves as the anti-impact modifier of PVC products, the PVC product produced thereby has strong impact strength and tensile strength.

The invention discloses an ABS/PBT alloy material and a preparation method thereof. The ABS/PBT alloy material comprises the following ingredients in parts by weight: 64 to 76 parts of ABS, 14 to 24 parts of PBT, 3 to 6 parts of flexibilizer, 2 to 5 parts of bulking agent, 0.5 to 1 part of lubricant, 1 to 2.5 parts of scratch-resistant agent, and 0.4 to 0.8 part of anti-oxidant. The tenacity of an ABS basis material is enhanced by adding the PBT; the defect that the dual structure of ABS/PBT is unstable is overcome by adding the bulking agent, so that two types of matrix resins can be compatible to each other better; the scratch resistance of the alloy material is improved by adding the scratch-resistant agent, so that excellent physical comprehensive performance is obtained. The preparation method mainly comprises two steps of mixing and melt extrusion, so that the process is simple, no additional complex equipment is required, the cost is low, the performance of the composite polymer material is improved, and suitability for industrial production is realized.

The invention relates to an easily-sprayed polypropylene composite material which can be used for automobile parts and a preparation method and application thereof. The easily-sprayed polypropylene composite material is mainly prepared by mixing the following ingredients (by weight): 40-65 parts of polypropylene, 10-18 parts of a thermoplastic elastomer, 0-3 parts of polyethylene, 0-3 parts of a polar copolymer, 20-30 parts of a mineral filler and a few amount of an anti-oxidant, a light stabilizer and other functional aids. The preparation method comprises the following steps: successively adding polypropylene, the thermoplastic elastomer, polyethylene, the polar copolymer, the mineral filler, the anti-oxidant, the light stabilizer and other functional aids into a low speed mixer and mixing for at least 2 min; adding the mixture into a twin-screw extruder and mixing, setting the extrusion temperature to be 170-240 DEG C, extruding and granulating, and uniformly mixing to obtain the product. The easily-sprayed polypropylene composite material can be used for preparation of automobile bumper products and has comprehensive properties such as excellent impact resistance, fluidity, rigidity, heat stability, dimensional stability, sprayability, etc.