3 results about "Internal bonding" patented technology

This invention discloses a method for analyzing the internal bonding strength of chemimechanical pulp fibers based on two-dimensional correlation near-infrared spectroscopy. The method includes the following steps: preparing chemimechanical pulp fiber samples with different internal bonding strengths and manipulating them into hand-made sheets; equilibrating the moisture content of the hand-made sheets under different relative humidity conditions; acquiring the near-infrared dynamic spectrum of the hand-made sheets in order of increasing relative humidity; performing two-dimensional correlation analysis on the dynamic spectrum to obtain the autocorrelation spectrum; and calculating the ratio of the signal intensity at wavelengths of 1394 nm and 1465 nm as the relative intensity I. 1394 / 1465 Test the bonding strength within the handwritten sheet according to standard methods, and calculate the test value and I. 1394 / 1465 The relationship curve of values; obtain I for the sample to be tested according to the above steps. 1393 / 1465 After obtaining the value, the fiber bond strength can be calculated by substituting it into the relationship curve. This invention enables efficient and non-destructive analysis of the strength performance indicators of pulp samples.

The method for bonding metal base and rubber part of the present application comprises: preparing an adhesive, which comprises propyl methacrylate, propyl acrylate and a cross-linking agent; coating the adhesive on the surface of the metal base to form an adhesive film; performing vacuum treatment on the adhesive film to remove bubbles; placing a rubber part on the adhesive film and applying pressure to the rubber part for a predetermined time; and performing heat treatment on the rubber part together with the metal base. The bonding method is simple and easy to operate, has high internal bonding strength and is less likely to separate, can effectively protect the performance of the product and prolong the service life, and is environment-friendly, thus being suitable for popularization and application.

The present application relates to hot pressing control technical field, disclose a kind of fine woodworking board hot pressing carbonization linkage control method and system, the method includes: obtaining the rebound of plate blank to be pressed, and obtain the state parameter of plate blank to be pressed.According to rebound and state parameter, determine whether plate blank to be pressed is in rebound stagnation risk state.When in, determine the dominant risk state.When in rebound dominant risk state, carry out slow pressure rise and shape stability, according to the thickness change of plate blank compression Limit speed temperature rise and decompression steam of edge portion, after steam end, carry out final pressure curing under the condition of limiting edge portion temperature rise upper limit.When determining in stagnation dominant risk state, carry out edge portion limited speed temperature rise, according to the surface temperature difference of edge portion and center and the thickness change of plate blank compression Decompression steam is carried out, after steam end, final pressure curing is carried out.When not in, carry out reference hot pressing control.The present application inhibits edge portion carbonization, improves internal bonding quality, improves product qualification rate.