40results about How to "Reduced risk of flaking" patented technology

A primary connector (10, 20) includes a primary housing (11, 31) and a number of terminal groups. The primary housing includes a periphery wall (111, 311) and a side wall (112, 312) disposed at opposite sides of the primary housing and extending along a longitudinal direction, a slot (113, 313) defined between the periphery wall and the side wall, and a number of passageways (114, 314) extending along a transverse direction for receiving the number of terminal groups. Each terminal group includes a predetermined terminal (22, 42) having a contact section (221, 421) exposed to the slot and a pair of soldering portions (222, 422) respectively extending from opposite sides of the contact section and inserted outwardly from the periphery wall and the side wall.

A primary connector (10, 20) includes a primary housing (11, 31) and a number of terminal groups. The primary housing includes a periphery wall (111, 311) and a side wall (112, 312) disposed at opposite sides of the primary housing and extending along a longitudinal direction, a slot (113, 313) defined between the periphery wall and the side wall, and a number of passageways (114, 314) extending along a transverse direction for receiving the number of terminal groups. Each terminal group includes a predetermined terminal (22, 42) having a contact section (221, 421) exposed to the slot and a pair of soldering portions (222, 422) respectively extending from opposite sides of the contact section and inserted outwardly from the periphery wall and the side wall.

In a composite material part having a ceramic matrix and including a fibrous reinforcement which is densified by a matrix consisting of a plurality of ceramic layers having a crack-diverting matrix interphase positioned between two adjacent ceramic matrix layers, the interphase (10) includes: a first phase (12) made of a material conducive to the diversion of a crack reaching the interphase according to a first propagation mode in the transverse direction through one of the two ceramic matrix layers adjacent to the interphase, such that the propagation of the crack continues according to a second propagation mode along the interphase; and a second phase consisting of discrete contact pads (14) that are distributed within the interphase and conducive to the diversion of the crack that propagates along the interphase according to the second propagation mode, such that the propagation of the crack is diverted and continues according to the first propagation mode through the other ceramic matrix layer that is adjacent to the interphase.

The invention relates to an aramid-spandex sheath-core composite fiber and a preparation method thereof. The method is characterized in that a sheath layer spinning solution and a core layer spinning solution are simultaneously extruded in a sheath-core structure and subjected to dry spinning through a spinneret plate assembly of which a spinneret orifice is in a concentric circle form. A sheath layer of the aramid-spandex sheath core composite fiber is made of an aramid 1313 and a core layer is made of spandex; the section of the fiber is of a concentric circle solid structure; the sheath layer accounts for 5-20% of total weight of the fiber; the prepared aramid-spandex sheath core composite fiber has high resilience and also has high temperature resistance, chemical resistance and wear resistance; and meanwhile, the problems that the sheath layer aramid 1313 fiber is not easy to dye, the sheath-core composite fiber is difficult to spin and mold and the contact interface of the sheath layer and the core is easy to peel off are solved.

The present invention provides an array substrate, the peripheral circuit area of ​​which includes a peripheral region substrate, a peripheral region TFT layer, a peripheral region passivation layer, a color resist layer, a peripheral region PFA layer, and a connecting line layer arranged in sequence from bottom to top. The resistance layer is provided with a first via hole, and the PFA layer in the peripheral area is correspondingly provided with a second via hole in the first via hole, and the hole wall of the second via hole belongs to the PFA layer in the peripheral area, and the peripheral area The passivation layer is correspondingly provided with a third via hole connected to the second via hole under the second via hole, and the corresponding second via hole and the third via hole together form a transfer via hole, and the connecting line The layer is in contact with the TFT layer in the peripheral area through the transfer via hole, and the color resistance layer is set between the passivation layer in the peripheral area and the PFA layer in the peripheral area, and the via hole for transfer in the PFA layer in the peripheral area is set in the color In the barrier layer, the adhesion of the PFA layer in the peripheral area can be improved, and the risk of peeling off of the PFA layer in the peripheral area can be reduced, thereby improving the yield of PFA products.

The invention discloses a miniature acoustic generator and relates to the technical field of an electroacoustic product. The miniature acoustic generator comprises a shell and a front cover which are combined together. A vibration system and a magnetic circuit system are contained in a space enclosed by the shell and the front cover. The vibration system comprises vibration diaphragm of which edge part is fixed between the front cover and the shell. The front cover is equipped with a side wall. The edge part comprises a fixing part located at an inner side and a turnup which is located at the outer side of the fixing part and bends upwards. The turnup is fixed on the outer surface of the side wall. According to the miniature acoustic generator, the technical problem that in the prior art, the waterproof performance of the miniature acoustic generator is poor is solved. The miniature acoustic generator is good in waterproof performance, high in waterproof stability and reliability, good in acoustic performance and long in service life.

A flexible display device includes a flexible display panel bendable along a bending axis. A support backplate is disposed on a side of the flexible display panel and located on an outer side of the flexible display panel when bending. The support backplate includes a support area and a plurality of extension areas defined on opposite sides of the bending axis and adjoining two sides of the support area. When the flexible display device is in an expanded state, a difference value between a length of the support backplate and a length of the flexible display panel in a direction perpendicular to the bending axis is greater than or equal to a first threshold. The flexible display device can reduce the risk of peeling of components in a bent state and can ensure a product lifespan.

The invention relates to the technical field of production of hard alloy numerical control coating inserts, and specifically discloses a cleaning method for hard alloy numerical control inserts before coating. The cleaning method is as follows: preparing No. 1-5 cleaning liquids suitable for WC-Co type hard alloy CNC insert substrates, and cleaning the surface of the coated substrate through an improved ultrasonic cleaning process; the No. 1 cleaning liquid is a powerful Alkaline metal cleaning solution; the No. 3 cleaning solution is a weak alkaline metal cleaning solution; the No. 5 cleaning solution is a cleaning solution containing antioxidants; the No. 2 and No. 4 cleaning solutions are pure water. The invention adopts No. 1-5 cleaning liquids and an improved ultrasonic cleaning process, which can ensure the cleanliness of the surface of the coating substrate, improve the production efficiency, and at the same time, it can also ensure that the surface of the substrate of the hard alloy numerical control blade is not damaged within several working days after cleaning. It is oxidized by moisture, thereby improving the bonding strength of the coating and the base of the carbide CNC insert, and prolonging the service life of the carbide CNC coating insert.

The invention provides a moderate-temperature antioxidation coating which is prepared by sintering a coating intermediate. The coating intermediate comprises a first coating compounded on a matrix surface, a second coating compounded on the first coating, and an ethyl orthosilicate layer compounded on the second coating. The first coating is prepared from a H3BO3-H3PO4 mixed acid solution. The second coating is prepared from B2O3, SiO2, Mn(H2PO4)2, ZrO2, CaF2, Al2O3, B4C, CeO2 and silica sol. The manganese can promote the flowability of the anti-glass phase in the sintering process; and by using the ethyl orthosilicate as a hole sealing agent, the silicon dioxide generated in the sintering process can fill pores in the antioxidation coating and reduce the risk of peeling of the antioxidation coating. The invention also provides a preparation method of the moderate-temperature antioxidation coating and a carbon / carbon composite product.

The invention relates to the technical field of hot rolling, in particular to a control method for surface oxidation pocking defects of a hot-rolled pickled plate. The control method includes the steps that the chemical components of a steel billet are controlled to include, by mass, 0.05-0.15% of Si, at most 0.01% of P and the balance Mn, Nb, Ti and a Fe substrate. In the heating process of the steel billet, the steel billet with the thickness being 135-250 mm is put into a heating furnace and heated for 160-200 min, and the tapping temperature of the steel billet is controlled to be 1180-1240 DEG C. The thickness of an intermediate billet is controlled to be 26-34 mm after a descaling process. In the precision rolling process, the precision rolling inlet temperature is controlled to be 980-1020 DEG C, and the finish rolling temperature is controlled to be 850-890 DEG C. The control method for surface oxidation pocking defects of the hot-rolled pickled plate can effectively restrain the occurrence of surface oxidation pocking defects of the hot-rolled pickled plate with the thickness being at most 2 mm and the tensile strength being at least 500 MPa.

The invention relates to the field of workpiece surface modification. An abrasion resisting workpiece comprises a base body. A tungsten buffering layer, a first DLC layer and a second DLC layer are sequentially deposited on the surface of the base body, and the SP3 key content of the first DLC layer is smaller than that of the second DLC layer. On one hand, by adoption of the first DLC layer, therisk of peeling of the second DLC layer can be better reduced; and on the other hand, the first DLC layer and the second DLC layer are made of carbon simple substance materials, so that the first DLClayer and the second DLC layer have better bondability, good attachment of the second DLC layer is better facilitated, and the risk of peeling of the second DLC layer is better reduced. In addition, the first DLC layer has high hardness and good friction resisting performance, even the second DLC layer peels, the first DLC layer is exposed, and excessive influences on pipe processing are avoided;and the friction resisting performance of the abrasion resisting workpiece cannot be obviously changed, reliability of the abrasion resisting workpiece is further better improved, and good surface performance of the abrasion resisting workpiece is further better guaranteed.