摘要:
A bimetal is disclosed having a high, rapid deflection over a specified temperature range, including a high expansion metal alloy component having a high thermal expansion coefficient that changes rapidly at 50.times.10.sup.-6 /.degree. C. or greater at a temperature of between about 100.degree. C. and 250.degree. C. and containing from 15-30% by weight of manganese, the balance of iron. The second component has a substantially constant thermal expansion coefficient regardless of the temperature change, and is preferably a stainless steel. These bimetals are used in circuit breakers, thermal protectors and the like.
摘要:
A bimetal is disclosed having a high, rapid deflection over a specified temperature range, including a high expansion metal alloy component having a high thermal expansion coefficient that changes rapidy at 50.times.10.sup.-6 /.degree.C. or greater at a temperature of between about 100.degree. C. and 250.degree. C. and containing from 15-30% by weight of manganeses, the balance of iron. The second component has a substantially constant thermal expansion coefficient regardless of the temperature change, and is preferably a stainless steel. These bimetals are used in circuit breakers, thermal protectors and the like.
摘要:
Disclosed is an Invar alloy original sheet for use in the production of a shadow mask, wherein the Invar alloy original sheet has the cleanliness measured by the method regulated in JIS G 0555, of 0.07% or less.Disclosed is also a shadow mask comprising an Invar alloy original sheet having the cleanliness mentioned above.By use of the Invar alloy original sheet of this invention, the problem of non-uniformity and irregurarity of inner wall surface of perforations formed on the original sheet for shadow mask is decreased to a great extent.
摘要:
A shadow mask with a low thermal expandability of an Fe--Ni-based alloy and a high surface hardness is disclosed. This shadow mask includes a mask main body consisting of an Fe--Ni-based alloy containing iron and nickel as main constituents, a large number of fine electron beam apertures formed in the mask main body, and a surface layer formed on the surface of the mask main body and containing at least one compound selected from the group consisting of iron nitride, iron nickel nitride, iron boride, iron nickel boride, iron silicide, and iron nickel silicide.
摘要:
A movable discharge device for use in a particle/bulk material storage silo includes: a travel body configured to travel along a groove provided at a lower portion of a storage silo; a scrape-out unit configured to move integrally with the travel body and including a blade configured to rotate above the groove to rake coals in the storage silo and scrape out the coals to the groove; and a groove closing mechanism configured to close a predetermined region of the groove within a rotation trajectory region of the blade. The discharge device is configured to be able to suppress the change in the discharge amount of coals discharged by the blade from the particle/bulk material storage silo.
摘要:
There is provided the novel compound 11-hydroxypregn-4-en-3-one-20-carbaldehyde, as well as a microbial method for production of the same. This novel compound is of value as a starting material for antiinflammatory corticoids such as hydrocortisone, cortisone, prednisolone and prednisone.
摘要:
A peelable adhesive structure is disclosed which comprises a plurality of parts at least one of which is made of metal, adhering together by means of a coating, characterized in that said coating has a peelable surface formed between a first layer of a denatured hydrocarbon resin or denatured hydrocarbon resin composition having an acid value of from 0.1 to 20 and a second layer containing an epoxy resin.
摘要:
A peelable bonded structure having a peel strength of 0.05 to 5 kg/cm comprises a plurality of articles, at least one of which is made of metal, bonded together through a composite coating layer. The composite coating layer is composed of adjacent first and second coating layers at least one of which comprises (A) a modified olefin resin having a carbonyl group concentration of 0.01 to 200 milliequivalents per 100 g of the olefin resin and (B) a coating film-forming base resin at an (A)/(B) weight ratio of from 0.2/99.8 to 40/60 and has a multi-layer distribution structure having resin concentration gradients in the thickness direction such that the modified olefin resin (A) is distributed predominantly in the portion contiguous to the interface between the two coating layers and the base resin (B) is distributed predominantly in the opposite portion.
摘要:
A cap adapted for use as a container cover where the cap has a thermoplastic resin liner pressed formed onto the inner surface of a cap shell. The plastic liner is formed such that the difference between the intrasurface orientation index of the outer peripheral portion of the liner and the intrasurface orientation index of the central portion of the liner does not exceed 0.37 where the intrasurface orientation index is defined as the sum of the orientation coefficient of the liner in the radial direction and the orientation coefficient of the liner in the circular direction.A method of making a cap having a thermoplastic liner where the liner is press-formed into shape under conditions whereby the difference between the intrasurface orientation index of the outer peripheral portion of the liner and the orientation index of the central portion of the liner does not exceed 0.37.
摘要:
When 1-halogeno-3-alkene-2-ol is reacted with an ortho-carboxylic ester and/or a ketene acetal, a .gamma.-halogeno-.delta.-unsaturated-carboxylic ester is obtained as a main reaction product. When this intermediate is treated with a basic substance, a substituted cyclopropane-carboxylic ester is formed. This ester can be used as an insecticide or an agricultural chemical as it is or after the alcohol residue of the ester has been converted to other alcohol residue.