68results about "Shellac adhesives" patented technology

The invention discloses a lamp holder welding paste prepared from rosin, shellac, 217 phenol-formaldehyde resin, ethyl alcohol, thermal-conductive carbon fibers, a zinc sulfide powder, a barium sulfate powder, a calcium carbonate powder and silicon modified polyurethane. The welding paste can maintain a paste state for a long term, is not easy to dry, can be well attached on a foam body root, has low curing temperature and fast heat conduction, improves the finished product rate of welding of lamp bulbs and lamp holders, and extends the lamp bulb service life.

The invention discloses a bonding agent for wax processing of a wafer and a preparation method thereof. The bonding agent mainly comprises paraffin wax, rosin and shellac, wherein the paraffin wax, the rosin and the shellac are proportioned according to the weight ratio of 20-50: 40-75: 5-20. The bonding agent can regulate the melting point by changing the adding proportion of raw materials, and the melting point can be generally controlled within the range of 70 DEG C-130 DEG C, in particular to 80 DEG C-120 DEG C. The preparation method of the bonding agent for was processing of the wafer comprises the step of utilizing a die to prepare the melted bonding agent which is uniformly stirred into a finished product bonding agent with a certain shape. The bonding agent utilizes the die for processing and molding and can meet various application needs in the actual production by changing the size and the shape of a model when being applied in the wafer processing process, and be easy to store.

The invention provides an LED straight lamp.The LED straight lamp comprises a lamp tube and a lamp cap arranged outside the tail end region of the lamp tube.The lamp cap comprises an insulating tube, a magnetic conductive metal part and hot melt glue.The tail end region of the lamp tube is sleeved with the insulating tube.The magnetic conductive metal part is fixedly arranged on the inner circumferential face of the insulating tube.The inner surface of the magnetic conductive metal part is coated with the hot melt glue, and the hot melt glue adheres to the outer circumferential face of the lamp tube.According to the LED straight lamp, the portion between the inner surface of the lamp cap and the outer surface of the end of the lamp tube is filled with the hot melt glue after the hot melt glue is heated and expanded through external heating equipment.Through cooperation of the heating equipment (an induction coil) outside the lamp cap and the magnetic conductive metal part, the hot melt glue is heated and expanded so that the lamp cap can be fixed to the lamp tube, the induction coil can also be used in cooperation with a power amplification unit, thus the power of an alternating current can be amplified by one to two times, the induction coil and the insulating tube are coaxial, and therefore energy transfer is uniform.