你知道有什么問(wèn)題來(lái)測(cè)定石膏粉的優(yōu)劣情況嗎？實(shí)際上根據(jù)濟(jì)南石膏粉的凝結(jié)時(shí)間凝結(jié)時(shí)間包括初凝時(shí)間和終凝時(shí)間。下面講解一番：

Do you know any questions about determining the quality of gypsum powder? In fact, according to the setting time of Jinan gypsum powder, the setting time includes the initial setting time and the final setting time. Here is an explanation:

石膏粉凝結(jié)時(shí)間的質(zhì)量標(biāo)準(zhǔn)是：在標(biāo)準(zhǔn)稠度下，一般初凝時(shí)間不小于6min,終凝時(shí)間不大于25min。適宜的凝結(jié)時(shí)間是石膏粉在生產(chǎn)中正常使用的先決和必要的條件。初凝時(shí)間過(guò)短或終凝時(shí)間過(guò)長(zhǎng)都不合適。

The quality standard for the setting time of gypsum powder is: under standard consistency, the initial setting time is generally not less than 6 minutes, and the final setting time is not more than 25 minutes. The appropriate setting time is a prerequisite and necessary condition for the normal use of gypsum powder in production. Short initial setting time or long final setting time are not suitable.

如果在使用中初凝時(shí)間太短，小于6min,則證明石膏粉沒(méi)有炒熟夾生，或受潮內(nèi)部含有生石裔，影響注模操作,表現(xiàn)為生產(chǎn)中注桶，耽誤生產(chǎn);若終凝時(shí)間太長(zhǎng)，遠(yuǎn)大于25tnin,則說(shuō)明石膏在炒制時(shí)過(guò)燒，里面含有過(guò)燒石膏，表現(xiàn)為注模時(shí)易漏漿,甚至石膏漿不凝固，影響生產(chǎn)。

If the initial setting time is too short during use, less than 6 minutes, it indicates that the gypsum powder has not been fried and sandwiched, or there are raw stones inside due to moisture, which affects the injection molding operation, manifested as barrel injection during production and delays production; If the final setting time is too long, which is far more than 25tnin, it means that the gypsum is burned during frying, and it contains Bassanite, which is easy to leak slurry during mold injection, or even the gypsum slurry does not solidify, affecting production.

在水泥生產(chǎn)中用于作水泥緩凝劑、特種水泥原料；在化學(xué)工業(yè)中用于制硫酸、硫酸銨等；

Used as a cement retarder and special cement raw material in cement production; Used in the chemical industry to produce sulfuric acid, ammonium sulfate, etc;

在農(nóng)業(yè)上用于改良土壤或作土壤肥料；油漆、顏料、造紙、紡織等行業(yè)用作涂料和填料以及用作日化產(chǎn)品如牙膏、雪花膏以及粉筆等行業(yè)的填料以及殺蟲(chóng)劑載體；

Used in agriculture to improve soil or as soil fertilizer; Used as coatings and fillers in industries such as paint, pigments, paper making, and textiles, as well as fillers and pesticide carriers in daily chemical products such as toothpaste, snow cream, and chalk;

在食品工業(yè)中用于凈化啤酒廠用水，控制酒的清澈度，或作食用豆腐的凝結(jié)劑以及動(dòng)物飼料添加劑硫酸鈣等。

In the food industry, it is used to purify water used in breweries, control the clarity of alcohol, or as a coagulant for edible tofu, and as an animal feed additive such as calcium sulfate.

外觀上看，白度高的工業(yè)石膏粉細(xì)度目數(shù)高，質(zhì)量好，價(jià)格較高；而發(fā)灰發(fā)黑、里面有黑色雜質(zhì)的石膏粉質(zhì)量較差。用手的拇指和食指搓捻石膏粉,手感發(fā)沙粗糙的石膏粉細(xì)度糙，質(zhì)量較差、價(jià)格較低；而手感細(xì)膩的石音粉說(shuō)明細(xì)度細(xì)，質(zhì)量較好，價(jià)格也會(huì)較高。

In terms of appearance, industrial gypsum powder with high whiteness has high fineness, good quality, and high price; The quality of gypsum powder with gray and black hair and black impurities inside is poor. Rub and twist the gypsum powder with the thumb and index finger of your hand, resulting in a rough and sandy feel. The gypsum powder has a rough and fine texture, poor quality, and low price; And the stone tone powder with a delicate texture indicates fine fineness, good quality, and a higher price.

測(cè)定石膏粉的優(yōu)劣情況相關(guān)的內(nèi)容就講解到這里，希望能夠給您好的幫助，更多產(chǎn)品事項(xiàng)就來(lái)我們網(wǎng)站http://www.daquanq.com.cn咨詢！

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